Firms To Watch: International arbitration

'A disputes powerhouse with a growing international arbitration offering', Boies Schiller Flexner LLP's increasingly impressive practice was recently boosted by the arrival of 'great talent' Ben Love from Reed Smith LLP.
Clients of Dan Tan Law highlight the litigation and arbitration boutique as 'compact' but 'highly capable and efficient'. Dan Tan is a prominent arbitration specialist, with particular expertise in US-Asia disputes.

International arbitration in United States

Debevoise & Plimpton LLP

A longstanding force in complex arbitrations, Debevoise & Plimpton LLP is widely admired for its impressive bench strength, with sources quick to assert that with this firm, ‘you do not hire an arbitration star, you hire a star team‘. A go-to firm globally, it is routinely selected by multinational corporations, states, NGOs and individuals to advise on the full range of international commercial arbitrations, investment treaty arbitrations and public international law cases. Equally adept in representing claimants and respondents, the group’s comprehensive experience spans all major arbitration rules and all industry areas. International disputes specialist Catherine Amirfarseems to do a week’s worth of work every day‘ and successfully defended the government of the Republic of Iraq in two separate arbitral proceedings totaling over $1bn. Ina Popova has ‘more talent in her little finger than in some entire law firms‘ and acted alongside Amirfar to co-lead the group’s defense of Iraq in the arbitration brought by Agility Public Warehousing Company. Mark W. Friedman is a ‘top-class strategist‘ and recently secured a $390m award for Perenco Ecuador in an ICSID arbitration against Ecuador. Other key names include Dietmar Prager, who has an ‘unparalleled capability to deal with foreign law matters‘, the ‘innovativeDavid W. Rivkin  and Caribbean practice group co-chair Natalie Reid. The firm also fields a talented band of rising stars including Floriane Lavaud (‘impeccable and greatly motivated‘) and Laura Sinisterra. Former group co-chair Donald Donovan retired from active practice at the end of 2021.


‘Debevoise’s international arbitration team is top notch. Strategic thinking and delivery of superb work product are their top qualities. When you go for Debevoise, you do not hire an arbitration star, you hire a star team.’

‘Having worked with several (if not all) of the top international law firms, Debevoise has made a great impact. Each team brings its own strength, and they operate as a seamless crew. Their professionalism and working ethos are comparable to none.’

David Rivkin’s willingness to take ownership and bringing innovative thoughts to win the case is what makes Debevoise’s arbitration practice strong.

Catherine Amirfar somehow seems to do a week’s worth of work every day — on top of being an amazing advocate for her clients, her pro bono work and commitment to the profession are so, so impressive.

‘Mark Friedman is one of the most intelligent people I have ever met. His lateral thinking can blow your mind away as you cannot anticipate his next move —something essential in disputes resolution and complex cross-border litigation. A top-class strategist.’

Ina Popova may be the Michael Jordan of international arbitration — there is more talent in her little finger than in some entire law firms.’

Dietmar Prager is fully hands on, with outstanding legal skills. He goes to the core of each issue with great analytical skills and unparalleled capability to deal with foreign law matters — his language capabilities (English, German, and Spanish) makes him versatile to cope with cases in different languages and cultures.

Floriane Lavaud is a ‘legal surgeon’, her degree of precision is formidable. She has a single objective, and it is to achieve what the client wants. Impeccable and greatly motivated.

Key clients

Barrick (Niugini) Limited and Barrick (PD) Australia Pty Limited

Discovery, Inc

Freeport-McMoRan Inc. and Sociedad Minera Cerro Verde & SMM Cerro Verde Netherlands B.V.

Gramercy Funds Management LLC

Hydro S.r.l., Costruzioni S.r.l., Francesco Becchetti, Mauro de Renzis, Stefania Grigolon and Liliana Condomitti



Qatar Airways

State of Qatar

Tethyan Copper Company Pty Limited (jointly owned by Antofagasta Minerals S.A. of Chile and Barrick Gold Corporation of Canada).

The Republic of Iraq

World Health Organization

Work highlights

  • Representing Tethyan Copper Company in annulment and revision proceedings, defending its $6bn arbitration win against the Islamic Republic of Pakistan.
  • Acting as lead counsel for the State of Qatar in a series of high-profile public international law disputes, including in two complaints before the International Civil Aviation Organization.
  • Representing the World Health Organization in a putative class action lawsuit filed in the Southern District of New York, asserting its privileges and immunities in connection with cases filed against it in US courts relating to its response to the COVID-19 pandemic.

Freshfields Bruckhaus Deringer LLP

Freshfields Bruckhaus Deringer LLP‘s international arbitration group strikes the right note with its ‘experienced, responsive and dedicated lawyers‘, who are capable of ‘distilling very complex matters with international and national implications‘. The group’s strong skill set in Latin America-related cases is a recurring theme among sources, with its attorneys considered ‘market leaders for investment arbitration involving Latin American states’. That being said, the practice is active across all key jurisdictions and handles the full scope of commercial and investment treaty disputes. The global firm’s close relationships with major multinational corporates is a key feeder of arbitration cases and it counts ConocoPhillips, Glencore and Anglo American among its longstanding clients — it also acts for sovereign states. The group’s diverse expertise sees it frequently handle cases across all key industry sectors but it stands out as a particularly popular choice for energy and natural resources-related matters. In a high-profile example, Glencore engaged the firm to represent it on an ICSID arbitration claim against the Republic of Colombia stemming from state measures that adversely affected Glencore’s investments in a coal mine. Global practice co-head Nigel Blackaby, noted as the ‘star of the team‘, co-led the Glencore work, together with Washington DC-based Caroline Richard, who is ‘100% hands-on in every single matter‘, and Elliot Friedman. US international arbitration lead Noiana Marigo enjoys a strong profile for Latin America-related cases and is representing BBVA in a dispute concerning Bolivia’s nationalization of the country’s pension fund administration industry. Named partners are based in New York unless stated otherwise.

Practice head(s):

Nigel Blackaby; Noiana Marigo

Other key lawyers:

Caroline RichardElliot Friedman


Market leaders for investment arbitration involving Latin American states, with a high level of technical expertise. Bilingual team capable of working in English and Spanish.’

Thoughtful, intelligent and calm, unexaggerated approach; New York team with very convincing presentation and exceptionally well prepared in hearings with outstanding skills in cross examination.’

The firm has well-established understanding of issues in the global and Nigerian oil and gas sector. Thus they always provide required legal advice and opinions that protect our rights and proffer much needed solutions in support of our business in Nigeria.’

‘They have a holistic understanding and expertise in the energy industry and are always a reliable ally in drafting diverse contracts, exceptional legal advisory/opinions, well pitched and articulated correspondences.’

‘Freshfields showcases a team of highly skilled, experienced, responsive and dedicated lawyers capable of distilling very complex matters with international and national implications. Also noteworthy, all of these lawyers (or most of them) have a high fluency in various languages, including Spanish, which makes communication with the client in many cases a lot easier.’

‘Nigel Blackaby QC is the leader and star of the team with an unparalleled experience and handling of the client’s needs.

Caroline Richard is Blackaby’s second in command. She’s 100% hands-on in every single matter and is capable of showcasing the same level of expertise as Blackaby. Richard is a highly responsive partner with perfect fluency in Spanish.’

‘Nigel Blackaby QC and Caroline Richards have excellent insights and knowledge in international arbitration relating to Latin America.’

Key clients

ConocoPhillips Company

The Glencore Group

VINCI Airports

Anglo American

Grupo Agroinsumos



Eco Oro Minerals

Smurfit Kappa Packaging


Latin American Regional Aviation Holding

IC Power

Kenon Holdings

Abertis Infraestructuras

Fernando Fraiz Trapote

The AES Corporation


América Móvil

Espiritu Santo Holdings

J&F Investimentos

Work highlights

  • Successfully represented ConocoPhillips In a series of ground-breaking cases relating to the 2007 expropriation of three major oil investments in Venezuela.
  • Selected to represent Eco Oro Minerals in its claim against Colombia under the Canada-Colombia Fair Trade Agreement relating to measures that put an end to its Angostura gold mining project.
  • Advised Espiritu Santo Holdings on a dispute arising out of a concession contract that its subsidiary held with the government of Mexico City to install and maintain taximeters across Mexico City’s fleet of taxis, and to develop a ride-hailing app alongside the taximeters.

King & Spalding LLP

According to satisfied clients, King & Spalding LLP is ‘the best international arbitration firm in the market‘. Among its main assets, sources highlight its ‘breadth of experience‘, as well as its deep bench which ensures it can put forwardthe absolute right expert for whatever the case needs’. Historically best known for its reputation in the energy and extractive sectors, the group continues to expand its industry offering, with its recent cases also spanning manufacturing, construction, transport and telecoms, among other areas. The firm’s geographical footprint is equally diverse and it routinely handles international commercial and investment arbitrations globally from its US platforms, often working alongside partners in its overseas offices. Houston-based department co-chair Doak Bishop is widely recognized as one of the leading arbitration specialists in the market; he recently teamed up with New York-based group co-head Edward Kehoe and the Paris office to represent Spanish energy company Unión Fenosa Gas in a series of investment and commercial arbitrations against the Government of Egypt and its national natural gas company, EGAS. Outside of the energy sphere, the group represented the Dutch subsidiary of Quanta Services in a new ICSID arbitration against the Republic of Peru under the Netherlands–Peru Bilateral Investment Treaty (BIT) — New York-based Harry Burnett (‘an absolute rock star‘) co-led that work together with Kehoe and Houston-based Craig Miles. Other recommended names include the ‘vastly experiencedViren Mascarenhas, who splits his practice between New York and London, Chicago’s Javier Rubinstein and Atlanta-based Elizabeth Silbert. Érica Franzetti recently joined in Washington DC from Dechert LLP.

Practice head(s):

Edward Kehoe; Doak Bishop


Simply the best international arbitration firm in the market. A true powerhouse, King & Spalding’s breadth of experience covering all major industries and jurisdictions positions the firm as the go-to firm for all kinds of complex disputes.’

King & Spalding has outstanding personnel with excellent command of the issues and the law. A winner team in which everyone is dedicated, creative, and works extremely hard. The individuals we worked with were very honest, open and knew how to handle the complex disputes efficiently, without involving the client in unnecessary matters.

King & Spalding’s team works very closely with co-counsels and with the clients to understand the critical issues of the dispute in question to create strong factual and legal arguments.’

‘They have the absolute right expert for whatever the case needs, have amazing relationships throughout the world, and seamlessly and humbly collaborate with each other across offices and practices to achieve the best outcome for the client.’

‘They are 100% focused on getting the best result for the client — whatever that may be — and have the ability to actually do it.’

‘Harry Burnett is an absolute rock star. He is off-the-charts smart but has absolutely no ego. He takes a great idea from any source, makes it better and executes it flawlessly. He is also a wonderful person and not surprisingly has the best relationships of any outside counsel I’ve ever met, which directly helped us achieve our goals in multiple cases.’

Harry Burnett, Craig Miles, Erica Franzetti and Fernando Rodriguez-Cortina are global leaders in the international arbitration field. They combine tons of practical experience and impressive academic credentials with a unique commercial mindset.’

The vastly experienced Viren Mascarenhas is very practical, gets to the heart of the issues and commands the process straightforwardly.’

Key clients

Air Canada

Republic of Turkey


Multiple renewable energy clients


Unión Fenosa Gas

Gerald International Limited / SL Mining Limited

Quanta Services

The Renco Group, Inc.


Work highlights

  • Represented Air Canada in an ICSID arbitration against Venezuela relating to the blocked repatriation of ticket sale revenues in the country.
  • Represented the Republic of Turkey in a $100m ICSID arbitration brought by Cascade Investments under the Belgium/Luxembourg–Turkey BIT.
  • Represented Chevron Australia and the Gorgon Owner Group (including Shell and ExxonMobil) in an UNCITRAL international arbitration arising from the construction of the $60bn Gorgon LNG facility on Barrow Island.

White & Case LLP

A top international arbitration firm‘, White & Case LLP‘s extensive international network ensures that it is involved in headline-grabbing cases worldwide, with its US partners routinely teaming up with practitioners in key global arbitration centers, including London, Paris and Geneva. The firm’s comprehensive practice breadth is another significant differentiator and clients praise its ‘expertise and experience in all types of arbitration cases before the most renowned international arbitration institutions‘. A leader in investor-state arbitration — for both sovereigns and corporates — the group also houses a top-notch commercial arbitration practice. In Washington DC, global group head Abby Cohen Smutny impresses with her ‘deep knowledge of public international law and international investment law‘; she represented Israel Chemicals, as co-counsel, in its UNCITRAL Rules investment treaty arbitration against Ethiopia, under the Netherlands-Ethiopia BIT. Other go-to arbitration specialists in Washington DC include Carolyn Lamm, who heads the practice for the Americas, and Jonathan Hamilton, who has a formidable record in Latin America-related work. In New York, Paul Friedland is a prominent name for high-stakes commercial and investment disputes; he teamed up with New York-based Americas disputes head Ank Santens to represent the Kingdom of Saudi Arabia an ICSID arbitration brought by Samsung Engineering under the Korea-Saudi BIT. Among the firm’s ‘strong bench of up-and-coming younger lawyers‘ are New York-based Damien Nyer, who is noted for his experience in matters involving sovereigns, and Brody Greenwald, who transferred to Los Angeles in 2020 to expand the firms international arbitration capabilities in California.

Practice head(s):

Abby Cohen Smutny 

Other key lawyers:

Carolyn Lamm; Jonathan Hamilton; Paul Friedland; Ank Santens; Damien Nyer; Brody Greenwald; Hansel Pham; Silvia Marchili; Jorge Mattamouros; Petr Polášek; Kristen Young


‘White & Case has extensive expertise and experience in all types of arbitration cases before the most renowned international arbitration institutions and in ad-hoc arbitrations.’

‘The team is hard-working, efficient, well organized and with a fast-response time. White & Case LLP is the best firm I have worked with.’

White & Case has such an excellent reputation globally for arbitration. The team is everywhere and it has such a large portfolio of matters. Unquestionably, it is a top international arbitration firm.’

In my view, the most international of all the arbitration practices in the market.

White and Case is a leading, if not the leading, arbitration practice. It has the cases and the bench strength — I don’t know any other firm with such a strong bench of up-and-coming younger lawyers.

‘Abby Cohen Smutny has provided winning legal representation and advice. She has excellent strategic thinking, and sound and reliable judgment. She impresses with her deep knowledge of public international law and international investment law.’

Key clients

Gabriel Resources Ltd. and Gabriel Resources (Jersey) Ltd.

Israel Chemicals Ltd.

Republic of Mozambique

MetLife Inc., MetLife Servicios SA and MetLife Seguros de Retiro SA

Agility Public Warehousing Company K.S.C.

Republic of Uzbekistan

Republic of Bulgaria

Kingdom of Saudi Arabia

Ministry of Justice, Republic of Korea

Grupo Unidos por el Canal, S.A.

Zurich Insurance Company Ltd., and Zurich South America Invest AB

Rutas de Lima S.A.C.


Red Eagle Mining

PT Ventures

WorleyParsons International, Inc.

Bright Star Business LLC

Work highlights

  • Represented the Kingdom of Saudi Arabia in a $1.5bn ICSID arbitration brought by MAKAE Europe, under the France-Saudi BIT.
  • Represented Canada’s Gabriel Resources, and its subsidiary Gabriel Resources (Jersey), in an ICSID arbitration against Romania concerning the Roşia Montană gold mining project in Romania.
  • Represented Grupo Unidos por el Canal (Panama), and its shareholders Salini Impregilo (Italy) and Jan De Nul (Belgium), in a dispute with the Panama Canal Authority relating to the $5.5bn Panama Canal expansion project known as the ‘Third Set of Locks Project’.

Arnold & Porter

Arnold & Porter‘s international arbitration practice is synonymous with investor-state disputes, where it continues to impress with its work for sovereigns. Notably, the firm has notched up a recent streak of 43 consecutive positive results on behalf of sovereign states in investment arbitrations. Among its wins, Washington DC-based global practice co-chair Paolo Di Rosa acted alongside the firm’s London office to successfully defend the Republic of Chile against a $354m public transport-related claim filed under the Chile-Colombia Trade Promotion Agreement. The firm also continues to focus on expanding its commercial arbitration practice, with POSCO Energy among its new corporate client additions. San Francisco-based global group co-chair Maria Chedid, who has an emphasis on technology and life sciences arbitrations, recently led the cross-border, cross-office team that represented POSCO Energy in two separate ICC arbitrations initiated by FuelCell Energy. Other recommended names include finance specialist Whitney Debevoise, who leverages premier experience in representing sovereigns in major arbitrations, and Mallory Silberman — both are based in Washington DC. In early 2022, Mélida Hodgson joined in New York from Jenner & Block LLP. Gaela Gehring Flores left to join Allen & Overy LLP.

Practice head(s):

Paolo Di RosaMaria Chedid,

Key clients





Czech Republic

Korea (South Korea)





POSCO Energy

Samsung Electronics, Samsung Heavy Industries




Verisign, Inc.

Work highlights

  • Successfully defended the Republic of Chile against a $354m claim filed under the Chile-Colombia Trade Promotion Agreement, in a dispute concerning the bus public transportation system serving Santiago.
  • Successfully represented Colombia in an investment arbitration involving claims of over US$323m, filed under UNCITRAL Rules.
  • Scored a win for the Republic of Costa Rica in a dispute related to an environmentally sensitive gold mine project, which involved a $400m claim.

Chaffetz Lindsey LLP

According to sources, Chaffetz Lindsey LLP stands among the ‘premier boutique construction and investment arbitration law firms‘. From its New York base, the practice is busy across the globe, acting on arbitrations in 20 jurisdictions over the past year alone. The group’s Latin America credentials are a big draw for clients, with Aníbal Sabater in particular singled out for his ‘wealth of experience in the Latin American market‘; he paired up with Caline Mouawad (‘very intelligent and nimble‘) to represent Canada’s Stoneway Capital and its Argentine subsidiary, SPI Energy, in an ICC arbitration in New York against Siemens. Group leader James Hoskingkeeps a cool head in complex situations‘ and routinely handles commercial and investment treaty arbitrations. Yasmine Lahlou continues to raise her profile in the market; she acted alongside Sabater to represent Tonopah Solar Energy, an entity controlled by the US Department of Energy, in an ICC arbitration against Spanish-owned Cobra Thermosolar Plants. Other recommended names include founding partner David Lindsey, dual New York- and Swiss-qualified Andreas Frischknecht and Gretta Walters, who brings a ‘fantastic point of view to each case‘.

Practice head(s):

James Hosking

Other key lawyers:

Aníbal Sabater; Caline Mouawad; James Hosking; Yasmine Lahlou; David Lindsey; Andreas Frischknecht; Gretta Walters; Cecilia Moss; Andrew Poplinger


‘Chaffetz Lindsey is one of the premier boutique construction and investment arbitration law firms that I have had the pleasure of working with. Lawyers are consummate professionals and have always stood out to me as one of the most prepared legal teams that I get to work with.’

‘Chaffetz Lindsey is an international arbitration boutique, capable of fully conducting complex cases in several languages, which is a highly appreciated asset in the LatAm market. Partners are 24/7 available to clients. They work seamlessly with local counsel.’

‘Chaffetz Lindsey’s arbitration team provides high-level services, with sophistication and dedication to the client. My personal experience as second chair in an arbitral case has been greatly enriched by the professionalism and organization of the partners and associates.’

Strong focused professionals with great skills and abilities for international arbitration practice.

‘James Hosking is quite a strategist. Talent and hard-work all in one. He keeps a cool head in complex situations to come up with appropriate solutions.’

‘Aníbal Sabater is a great strategist and legal professional with a wealth of experience in the Latin American market. James Hosking stands out as a diligent and skilled cross-examiner with an incredible work ethic and attention to detail.’

‘Caline Mouawad and her team are very intelligent and nimble. They are collaborators, willing to listen to suggestions and not afraid to better their practice by learning as they go along in a matter. Their written advocacy is exceptional and they are able to back that up with excellent oral advocacy skills as well.’

Gretta Walters is one of the most promising young professionals that I have worked with at the firm and brings a fantastic point of view to each case.’

Key clients

The AES Corporation

APM Terminals Callao S.A

Clorox Spain S.L.

Czech Republic

Enel S.p.A

Eskenazi family

Grañá y Montero

The Government of the Cook Islands

IESA Oleo & Gas, S.A


Reti Televisive Italiane

SPI Energy

Stoneway Capital

Sustainable Bio Solutions Aabenraa K/S

Synohydro Costa Rica, Omega Construcciones, Desarrollos y Construcciones Urbanas and CAABSA Infraestructura

Tonopah Solar Energy, LLC

Work highlights

  • Successfully represented Brazil-based IESA Oil & Gas in an ICC arbitration seated in New York, in a dispute arising out of the owner’s wrongful termination of an EPC Contract.  
  • Successfully represented Nigerian National Petroleum Company in US federal court in New York, in opposing enforcement of a $2.8bn arbitration award.
  • Represented the Czech Republic in a PCA-administered UNCITRAL arbitration seated in The Hague arising out of the Republic’s alleged breach of the Czech Republic-UAE BIT.

Cleary Gottlieb Steen & Hamilton

Split between New York and Washington DC, Cleary Gottlieb Steen & Hamilton's international arbitration practice attracts praise for its 'ability to assimilate the facts of a complex case and apply those to reasoned decision-making'. The group leverages the firm's widely admired Latin America offering to pack a punch in arbitrations across the LatAm region. It also frequently leans on its international offices to represent clients in Asia, Europe, the Middle East and Africa on complex commercial and investor-state disputes. Ari MacKinnon is noted for his distinctive Latin America focus; he recently represented Petrobras in an action seeking to vacate and oppose an arbitration award in favor of Vantage Deepwater Company and Vantage Deepwater Drilling. Former group co-chair Howard Zelbo stepped down to senior counsel in 2021 and Jeffrey Rosenthal, commended as 'exceptional in cross-examination', now co-leads the department alongside MacKinnon. Rosenthal recently acted alongside the firm's London and Paris offices to represent Vale, as claimant, in a $1.2bn LCIA arbitration in London against its former joint venture partner, BSG Resources. Named attorneys are based in New York.


‘This is the most thorough practice I have come across. Nothing remains in doubt or unconsidered. Their ability to assimilate the facts of a complex case and apply those to reasoned decision-making is second to none.’

‘The firm stands out for its specialization in the hydrocarbons sector, many years of experience, excellent analysis and legal and strategical support. Tailored attention.’

‘The firm has very deep experience in complex international arbitration and a good knowledge of legal and contractual aspects related to the client’s country of origin.’

‘Jeffrey Rosenthal is extremely good at helping you, as a client, understand complex legal issues, so that you can be realistically engaged in the decision-making process through a litigation. He is also exceptional in cross-examination.’

‘They anticipate all angles, leave no stone unturned and offer superb service. Howard Zelbo and Ari MacKinnon are stars.’

Mark MacDonald demonstrates a phenomenal command of the facts of a case, ensuring nothing is overlooked in decisions.’

Key clients


Selex Galileo

OJSC Tatneft

Telecom Italia

The Republic of Argentina

Agfa-Gevaert Group

Petróleo Brasileiro S.A. – Petrobras

The Republic of Tatarstan and the Ministry of Land and Property Relations of the Republic of Tatarstan

The Arab Republic of Egypt

Work highlights

  • Assisted Vale in securing a $2bn LCIA arbitration award against its joint venture partner alleging fraud and breach of contract, and in pursuing enforcement of the award in the Southern District of New York and in the English High Court.
  • Secured a victory for Selex Galileo in an ICDR arbitration against a business partner relating to laser medical technology.
  • Successfully represented the US subsidiary of a Mexican glass manufacturer in a multimillion-dollar ICC arbitration against another glass manufacturer for breach of an exclusive sales agreement.

Covington & Burling LLP

The 'highly recommended' team at Covington & Burling LLP 'commits entirely and deeply to a case', say sources.  The arbitration group stands out for its ability to lean on the firm's formidable government relations and international trade offerings to shine in complex, often political, investor-state and state-to-state disputes. Additionally, the well-rounded practice handles international commercial arbitrations, with particular expertise in the life sciences, energy, insurance and construction arenas. In Washington DC, practice co-chair Marney Cheek had a banner year, which included acting alongside David Zionts to represent the Government of Ukraine before the International Court of Justice in its case against the Russian Federation alleging breaches of the Terrorism Financing Convention. Other recommended names in Washington DC include Allan Moore, who specializes in representing multinational corporations in insurance and energy-related cases, Miguel López Forastier and special counsel Clovis Trevino. In New York, Nicole Duclos is an 'outstanding attorney' and is noted for her strong expertise in LatAm-related matters. Dave Pinsky advises on investor-state and commercial arbitration, with an emphasis on Russia and Eastern Europe.

Practice head(s):

Marney Cheek


‘The entire team commits entirely and deeply to a case, addressing not only the legal provisions involved, but especially the facts, which is something very valuable for clients.’

‘They led our case to great success. They are strategic thinkers, highly responsive, well versed in construction arbitration and have a deep understanding of projects in emerging jurisdictions. Highly recommended.’

‘Nicole Duclos is an outstanding practitioner. She is very detail-focused and no aspect of the case remains unattended when she gets involved.’

‘We worked with a team at Covington led by extraordinary attorney, Nicole Duclos. The team was well versed in matters of law and navigated challenging terrain in a highly competent and professional manner.’

Key clients


Eli Lilly & Company


Vulcan Materials Co.

Government of Ukraine, Ministry of Public Affairs

Gruma S.A. de C.V.

DTEK Krymenergo PJSC

Telcell Wireless/ International Telcell Cellular

Radio Free Europe/Radio Liberty’s Prague headquarters, RFE/RL, Inc.

Curtis, Mallet-Prevost, Colt & Mosle LLP

Curtis, Mallet-Prevost, Colt & Mosle LLP's team is widely hailed for comprising 'well-regarded experts in the field of investor-state arbitration'. The firm is well known for its record in representing sovereigns worldwide in complex investment disputes, with a roster of over 20 state clients. On the commercial arbitration side, it is well versed in acting for corporates in disputes between private companies. In New York, firm chairman George Kahale is recognized as a 'leader in the field of international arbitration', and counts state clients from LatAm, Asia, Africa and the Middle East among his clients. Claudia Frutos-Peterson, managing partner of the Washington DC office, handles a mix of investor-state and international commercial arbitration; she was recently appointed by the Argentine Republic to represent the state in the first investment arbitration globally relating to pension reforms. Other key contacts include the 'accommodating and very hardworking' Simon Batifort; he splits his time between New York, Brussels and Paris and is qualified to practice in all three jurisdictions.

Practice head(s):

George Kahale


‘The CMP team are well regarded experts in the field of investor-state arbitration, and have distinguished themselves with their ability to provide incisive and clear input on international law issues and practice, and their quick response times.’

‘They represent states and state agencies only, therefore, there is no concern of conflicts of interests from clients. They are dedicated to representing and defending state and state agency clients.’

‘The team provides exceptional knowledge and expertise of international investment law and local law. The team also includes people from developed and developing countries, which contributes to diversity in legal background and understanding of the business environment in developing countries.’

They possess the perfect combination of academic knowledge and pragmatic wisdom.’

‘The lead Partner from CMP on the matter is Mr George Kahale III. He is a well-established leader in the field of international arbitration, with a great deal of experience, and is fully committed to his client and to the case.’

‘The partners who work with us (George Kahale and Claudia Frutos-Peterson) are very attentive to the client’s need, identify our concerns and address them thoroughly. They strengthen our confidence in our case.’

Mr Simon Batifort is well established in the field in his own right. He is always available, very accommodating and very hardworking.’

‘The firm’s energy, skill, commercialism and client care are second to none, particularly Arianna Sánchez and Hermann Ferré in New York.’

Key clients

Republic of Congo

Republic of South Sudan

Republic of Uzbekistan


Socialist Republic of Vietnam

Argentine Republic

Republic of Colombia

Republic of Panama

Kingdom of Spain

State of Kuwait

Republic of Kazakhstan

Republic of Cyprus


Republic of India

Republic of Uganda

Dominican Republic

Venezuela; Petróleos de Venezuela (PDVSA)

Work highlights

  • Representing the Argentine Republic in an ICSID arbitration relating to retirement and pension system reform measures adopted by the State, involving claims of over $500m.
  • Representing the Republic of Colombia in an ICSID case initiated by two American companies related to the expansion and modernization of the Cartagena Refinery.
  • Acting for the Republic of Uzbekistan in an investment-treaty arbitration brought by a group of Turkish investors.

Three Crowns LLP

Specialist disputes boutique Three Crowns LLP focuses exclusively on international arbitration and international law cases, with an increasingly impressive book of commercial, investor-state, and state-to-state matters. The consensus among sources is that the Washington DC-based team 'is knocking on the door of the established tier-one firms', with its consistent practice growth and premier experience on high-stakes cases drawing praise from clients and peers alike. Luke Sobota enjoys a strong profile globally for his track record in cutting-edge cases; he is notably leading the firm's representation of Chevron in its investment treaty arbitration against Ecuador, arising from a $9.5bn judgment against Chevron issued by Ecuadorian courts. Liz Snodgrass is also a highly respected figure in the market; she is acting hand-in-hand with the firm's London and Paris offices to represent Elliott Associates in an investment claim brought under the US-Korea Free Trade Agreement and arising out of a major state corruption scandal. Counsel Agustin Sanz, who is qualified in Buenos Aires and practices as a special legal consultant in Washington DC, and counsel Simon Consedine are talented rising stars.

Practice head(s):

Luke SobotaLiz Snodgrass


‘Fantastic team, providing good advice on complex issues, very responsive, reliable and available to advise on short notice and flexible to accommodate multiple time zones. I am confident in the advice received.’

‘Good diversity (two female lawyers heading up the team on our matter, with associates of different genders and nationalities). Have advised on difficult issues on which we have succeeded.’

Three crowns is knocking on the door of the established tier-one firms, I would say. This firm is entirely devoted to international arbitration, has grown immensely over recent years and is handling many of the most high-profile cases across the globe.’

‘Liz Snodgrass – excellent service, available at short notice for urgent matters and very early mornings to accommodate multiple time zones, provides good advice, helps navigate complex issues, easy to work with, good advocacy skills, personable.’

Key clients




Islamic Republic of Pakistan

Kingdom of Bahrain

Chevron Corporation

Crescent Petroleum

Elliott Associates

Occidental Petroleum



Work highlights

  • Representing Chevron in its investment treaty arbitration against Ecuador before an arbitral tribunal under the auspices of the Permanent Court of Arbitration.
  • Acting for the Kingdom of Bahrain in its first known investor-state dispute, which was brought under the Iran-Bahrain BIT by Bank Melli Iran and Bank Saderat Iran.
  • Representing Elliott Associates in an investment claim brought under the United States-Korea Free Trade Agreement.  

Baker Botts L.L.P.

Texas stalwart Baker Botts L.L.P. specializes in energy-related arbitrations, in line with its firm-wide strength. Other notable sweets spots for this team of 'excellent arbitration advocates and arbitrators' include IP, construction and joint venture disputes. The group is routinely appointed by corporations to advise on commercial arbitration cases — less frequently, it represents companies in investor-state disputes. In New York, global department co-chair Andrew Behrman maintains a geographically diverse practice, with particular experience in energy and construction-related disputes. Operating between Houston and New York, Michael Goldberg demonstrates a 'practical approach to problem solving' and has broad industry experience, with his recent cases touching on energy, sport and real estate-related matters. Special counsel Edward Schorr, who sits in New York, and Vern Cassin, who works between Washington DC and New York, are also noted.

Practice head(s):

Andrew Behrman


‘We are involved in extensive domestic and international arbitration and litigation, combined with regulatory issues. Requires a strong, cooperative multi-disciplinary team with strong leadership. This is what the International Arbitration group is providing.’

‘Excellent arbitration advocates and arbitrators.’

‘Michael Goldberg is a brilliant lawyer who takes a practical approach to problem solving. After evaluating an issue’s strictly legal implications, he has an uncanny ability to view the case from a solutions point of view, taking a business approach to cut through the complex legal issues.’

‘Vern Cassin is commercial, willing to dive into even the most tedious of tasks, provides practical advice, is always available and turns projects around on short notice. He has handled a wide variety of litigation matters, from both international arbitration matters to domestic litigation.’

‘Dustin Appel is brilliant on forensic accounting issues.’

Key clients

Intercontinental Terminals Company

Oxbow Calcining LLC

Rocket Ball, Ltd.

Work highlights

  • Secured a complete victory for Oxbow Calcining in an arbitration brought by PASE, defeating over $100m worth of PASE’s claims and winning $2.1m in counterclaims and costs.

Foley Hoag LLP

Foley Hoag LLP‘s focus on representing sovereign states pays dividends and the firm has successfully represented an impressive 60 state clients in disputes, ensuring that its lawyers are ‘at ease with dealing with cases involving sovereign states‘, where ‘considerations may sometimes differ from purely private cases’. Further to the firm’s strength in both investor-state and state-to-state arbitrations across the globe, it also continues to build up its experience in representing corporations and state-owned enterprises in international commercial and construction disputes. From Washington DC, Lawrence Martin and Constantinos Salonidis steer the international litigation and arbitration practice; together, they represented the State of Qatar in bringing four separate arbitration proceedings against four states that terminated postal services with Qatar. Kenneth Figueroa, also in Washington DC, has an emphasis on international commercial and construction arbitration and investor-state arbitration, particularly involving Latin America. Other contacts in Washington DC include Derek Smith and ‘dedicated‘ international associate Sudhanshu Roy. In New York, the group benefits from the experience of Daniel Schimmel, who leads the practice there, and newly promoted partner Christina Hioureas, who chairs the United Nations group,

Practice head(s):

Lawrence Martin; Constantinos Salonidis; Daniel Schimmel; Derek Smith; Andrea Pinna; Andrew Loewenstein; Kenneth Juan Figueroa; Clara Brillembourg; Tafadzwa Pasipanodya; Diana Paraguacuto-Mahéo; Manuel Tomas; Christina Hioureas; Pierre d’Argent; Alberto Wray

Other key lawyers:

Sudhanshu Roy


‘The team I have worked with are very knowledgeable in International Arbitration issues as well as in the substantive and procedural law in key jurisdictions, making brainstorming tricky issues less arduous. They have also shown themselves to be at ease with dealing with cases involving sovereign states, where considerations may sometimes differ from purely private cases.’

Their perception of the law and understanding of the issues is unique. They do the required research to reach the right conclusions in defending the case.’

We value the personalized treatment provided by the team in real time. We receive responsive and strategic solutions from a team willing to answer questions.’

‘An outstanding law firm with top-rate lawyers, a friendly team and superb team work.’

‘The team stands out for its diversity, availability, strategic thinking and expertise.’

‘Constantinos Salonidis is a seasoned practitioner and a leader in his field. He has worked with sovereign states from different parts of the world and masters international dispute settlement issues.’

‘Their in-depth knowledge of the law, vast experience, and readiness to learn is commendable. Lawyers, such as associate Sudhanshu Roy, are really dedicated to the cause and deliver the results.’

‘Christina Hioureas, Sudhanshu Roy, and Rebecca Gerome stand out for their dedication and quality of work.’

Key clients

Access Now



Air France



Bangladesh Power Development Board

Bangladesh Petroleum Exploration & Production Company Limited (BAPEX),

Bangladesh Oil Gas and Mineral Corporation (Petrobangla)

Bangladesh Telecom Regulatory Commission


Caña de Nicaragua, S.A.


Crédit Agricole / CACEIS (France)

Corporación Dominicana de Empresas Eléctricas Estatales (CDEEE) (Dominican Republic)





Estate of Victor Jara

Equatorial Guinea

Gambia / Republic of The Gambia

Gazprombank (Russia)


Greece/Hellenic Republic

Greek Orthodox Archdiocese of America



International Conference of Asian American Political Parties

Jalalabad Gas Transmission and Distribution System Limited

Kanai Management Inc.

Laboratoires Pierre Fabre



Momotombo Power Company

Municipalidad Metropolitana de Lima





Orange SA



PeruPetro S.A.


Pierre Fabre Dermo-Cosmétique

Public Gas Corporation of Greece (DEPA)



Russian Federation

Sierra Leone



Tajik Air






Access Now



Air France



Bangladesh Power Development Board

Bangladesh Petroleum Exploration & Production Company Limited (BAPEX),

Bangladesh Oil Gas and Mineral Corporation (Petrobangla)

Bangladesh Telecom Regulatory Commission


Work highlights

  • Represented Bangladesh Petroleum Exploration & Production Company (‘Bapex’) and Bangladesh Oil Gas and Mineral Corporation (‘Petrobangla’) in a billion-dollar ICSID arbitration brought by Canada’s Niko Resources concerning damage caused by two blowouts in a gas field in Bangladesh.
  • Represented the Republic of Uruguay in a UNCITRAL  arbitration brought under the Uruguay-UK BIT.
  • Represented the Republic of Croatia in an UNCITRAL arbitration under the Austria-Croatia BIT relating to the insolvency of a major Croatian company.

Hughes Hubbard & Reed LLP

Hughes Hubbard & Reed LLP finds favor for its 'skills of legal analysis' and its 'intercultural, diverse group'. Largely concentrated in the firm's Washington DC and New York offices, the national practice also benefits from a platform in Miami, which is utilised by Latin America specialist Luis O’Naghten to plug into the LatAm region. The firm covers the full scope of arbitration matters, from commercial, through to investor-state and state-to-state cases, and is active across the globe. Washington DC is the seat of high-profile arbitration co-chair John Townsend, who has served as arbitrator in over 85 arbitrations, spanning all major arbitration rules. James H. Boykin, also in Washington DC, spearheads the investment treaty arbitration practice; a key contact for German-speaking clients, Boykin is representing Deutsche Telekom in a petition to enforce an arbitral award against the Republic of India. Rémy Gerbay and Diego Durán de la Vega are also noted in Washington DC. In New York, arbitration co-chair Hagit Muriel Elul is held up as 'a force to be reckoned with', and had a strong recent run in pharmaceutical-related cases. Daniel Weiner, who has a focus on IP disputes, is also recommended in New York.


‘We asked Hughes Hubbard & Reed LLP (HHR) to represent us in international arbitration. The HHR team showed considerable expertise in developing a rigorous strategy to defend our argument.’

‘The team comprised excellent individuals who had international backgrounds and were perfectly accustomed to work with non-US clients. I strongly believe that it is their skills of legal analysis and intercultural, diverse group that distinguishes HHR from other firms.’

‘Very international in scope of services covered, with deep legal talent!’

‘Hagit Muriel Elul is a force to be reckoned with!’

‘Diego Durán de la Vega is bicultural with a perfect grasp of legal issues both in US and internationally.’

‘We believe that Hagit Muriel Elul and Meaghan Gragg have astonishing legal skills, including the abilities to analyze and sharpen arguments. The arguments they presented at arbitration were clear and easy to understand, which made the arguments convincing to the arbitrators.’

Key clients

Two Crimea-related arbitrations: (1) Aeroport Belbek LLC and Igor Valerievich Kolomoisky v. The Russian Federation (PCA Case No. 2015-07) (2) Everest Estate LLC et al. v. The Russian Federation (PCA Case No. AA577)

Darren Indyke, Co-Executor of Jeffrey Epstein’s estate

Global Gaming Philippines LLC and GGAM Netherlands B.V.

American Arbitration Association

A French investor

The Republic of Equatorial Guinea

Deutsche Telekom

Westwater Resources, Inc.

Arin Capital & Investment Corp. and Edmond Khudyan

The Pellas Group/SER Corp (BVI)


Republic of Guinea and the Guinean Authority for the Regulation of Telecommunications

Work highlights

  • Represented Darren Indyke, co-executor of Jeffrey Epstein’s estate, in reaching a tripartite agreement with multiple claimants’ counsel and the US Virgin Islands’ Attorney General concerning a multimillion-dollar program to compensate sexual abuse victims.
  • Scored a victory for Global Gaming Asset Management, when the Singapore High Court upheld a $296m arbitration award issued in 2019 to the client in a dispute with a gaming resort owner in the Philippines.
  • Represented Ukrainian investors in five arbitrations against the Russian Federation under the Russia-Ukraine BIT arising out of measures relating to the Russian annexation of Crimea — and in defending the resulting awards in the Swiss and Dutch courts.

Norton Rose Fulbright US LLP

Among Norton Rose Fulbright's key attributes, sources highlight its 'strategic thinking', 'partner-led approach' and 'mastery of the international arbitration domain'. Mainly split between Houston, Washington DC, San Francisco and New York, the group also leverages the firm's extensive global network to routinely work hand-in-hand with its offices abroad. The team is a prominent player in both commercial and investment treaty arbitrations, particularly in the energy and infrastructure fields, and it acts for both claimants and respondents. Houston-based Mark Baker co-heads the global international arbitration practice and is routinely appointed to represent major corporates in complex arbitrations, with an emphasis on the energy, infrastructure, transport and financial services sectors. Matthew Kirtland, noted for his 'excellence in advocacy', is a key name in Washington DC. In a highlight state-side matter, Kirtland is representing the Republic of Kazakhstan in connection with multiple enforcement proceedings arising from a $500m Energy Charter Treaty award. Houston-based Kevin O’Gorman ('a great lawyer') and New York's Mina Matin are also key figures.

Practice head(s):

Mark Baker


The Washington DC-based arbitration team with which we deal is excellent; they work well and efficiently together, staffing is appropriate and conservative, and the work first class.

‘Very responsive and attentive, with a mastery of the international arbitration domain.’

‘A rare combination of outstanding strategic thinking, and attention to the details of the case, produces the best results for the client.’

‘Easy to work with. Well connected. Pragmatic. High professional competence.’

‘Easy to communicate, partner-led approach, very solution-oriented, timely feedback.’

‘I have sat with Mark Baker as an arbitrator. He is very experienced, collegial, and hard working. A pleasure to sit with.’

‘Kevin O’Gorman is the standout. Excellent client relations, a great lawyer.’

‘Matthew Kirtland deserves special mention for the quality of his analysis and excellence in advocacy.’

Key clients

Noble Energy

Vicinay Cadenas, S.A.


The Republic of Kazakhstan

Gold Reserve Corporation



NNPC (Nigeria National Petroleum Corporation)


Flowserve Corporation

Martin-Baker Aircraft Company, Ltd.

Global Consulting and Mechanical Services LLC

Work highlights

  • Defended Vicinay Cadenas against product liability, gross negligence and fraud claims brought by Petrobras America and a syndicate of London-based insurers.
  • Represented the Republic of Kazakhstan in connection with multiple enforcement proceedings in the US and abroad arising from a $500m Energy Charter Treaty award.
  • Represented Global Consulting and Mechanical Services in relation to a SIAC arbitration and related litigation in Singapore and Vietnam.

Quinn Emanuel Urquhart & Sullivan, LLP

As a key part of Quinn Emanuel Urquhart & Sullivan, LLP's flagship disputes offering, the firm's international arbitration practice is well versed in representing multinational corporates and sovereign states in high-stakes cases. The arbitration group is represented across all of the firm's domestic and overseas offices, ensuring that it has the global expertise and critical mass to handle the full range of commercial, investor-state and state-to-state arbitrations worldwide. David Orta chairs the US and Latin America international arbitration practice and operates out of Washington DC, New York and Miami; he teamed up with Washington DC-based partners Daniel Salinas-Serrano and Dawn Yamane Hewett to represent 37 US investors in an international investment arbitration against Mexico brought under the North American Free Trade Agreement (NAFTA). The group also includes New York-based Mark McNeill, who has 'deep experience of investment arbitration', and Michael Young, who leads the international arbitration practice in New York.

Other key lawyers:

Lucas Loviscek; Julianne Jaquith


‘Fantastic technical knowledge and capability. Great strategic thinkers. See the bigger picture and present their advice in a clear manner.’

‘I work with Quinn on a large investment arbitration case. The team is spread between NY and London. They are experienced, hardworking and leave no stone unturned. Final products are always excellent.’

Mark McNeill is excellent. Highly skilled. Great strategic advice. Excellent on his feet.’

‘Mark McNeill is my main contact. Mark has deep experience of investment arbitration and provides excellent advice. His drafting skills are superb.’

Key clients

Gordon G. Burr, Erin J. Burr, John Conley, Neil Ayervais, Deana Anthone, Douglas Black, Howard Burns, Mark Burr, David Figueiredo, Louis Fohn, Debbie Lombardi, Scott Lowery, Thomas Malley, Ralph Pittman, Dan Rudden, Peg Rudden, Robert E. Sawdon, Randall Taylor, James H. Watson, Jr., B-Mex, LLC, B-Mex II, LLC, Oaxaca Investments, LLC, Palmas South, LLC, B-Cabo, LLC, Colorado Cancún, LLC, Santa Fe Mexico Investments, LLC, Caddis Capital, LLC, Diamond Financial Group, Inc., LLC, Family Vacation Spending, LLC, Financial Visions, Inc., J. Johnson Consulting, LLC, J. Paul Consulting, Las KDL, LLC, Mathis Family Partners, Ltd., Palmas Holdings, Inc., Trude Fund II, LLC, Trude Fund III, LLC, and Victory Fund, LLC v. the United Mexican States

Redwood Capital Management, LLC, on behalf of certain funds and accounts it manages or advises; Avenue Europe International Management, L.P., on behalf of certain funds that it manages; BlueMountain Capital Management, LLC; NB Distressed Debt Investment Fund Limited; NB Distressed Debt Master Fund LP; Beach Point Capital Management L.P.; Glendon Capital Management LP; ING Bank; Banco Bilbao Vizcaya Argentaria; Bankia, S.A.; Caixabank, S.A.Haitong Investment Ireland, P.L.C.; ; Banco Santander, S.A.; SC Lowy; and CarVal Investors

Alicia Grace, Ampex Retirement Master Trust, Apple Oaks Partners, LLC; Cambria Ventures, LLC; Carlos Williamson-Nasi, Axis Oil Field Services, S. de R.I. de C.V.; Axis Oil Field Holding, S. de. R.I. de C.V.; Clue, S.A. de C.V.; Carolyn Grace Baring; Diana Grace Beard; Floradale Partners, LLC; Frederick Grace; Frederick J. Warren; Gary Olson; Genevieve T. Irwin; Genevieve T. Irwin 2002 Trust; Gerald L. Parsky; John N. Irwin III; José Antonio Cañedo-White; Fideicomiso 305952; Nicholas Grace; Oliver R. Grace, III; ON% Investments, LLC; Rainbow Fund, L.P.; Robert M. Witt; Vista Pros, LLC; Virginia Grace; and other European investors

United Group BV, Adria Serbia Holdco BV & Serbia Broadband v The Republic of Serbia

Alverley & Germen v. Romania.

Rasia v. Armenia

The Estate of Julio Miguel Orlandini-Agreda; Compañía Minera Orlandini Ltda.

Peruvian Sporting Goods S.A.C. (“PSG”), Rodrigo Xavier Ribadeneira Parducci, Superdeporte Plus Peru S.A.C

Cairn Energy v India

Skadden, Arps, Slate, Meagher & Flom LLP

Skadden, Arps, Slate, Meagher & Flom LLP's thriving international arbitration practice is a key contender for sophisticated mandates both in the commercial and investment treaty spheres. Driven out of New York by widely respected global co-head John Gardiner, the international litigation and arbitration group also leans on the firm's extensive network of domestic and global offices. Julie Bédard, based between New York and Sao Paulo, heads the group for the Americas and in 2020 was named as an arbitrator for the US-Mexico-Canada Agreement’s dispute settlement mechanism. Bédard recently paired up with up-and-coming arbitration specialist Jennifer Permesly, also in New York, to lead the firm's representation of Embraer in three major international arbitration proceedings against Boeing. Timothy Nelson and Lea Haber Kuck are also recommended for international arbitration matters — both are in New York.

Practice head(s):

John GardinerJulie Bédard,


The ‘well-resourced‘ practice at WilmerHale scores highly with sources for its ‘perfect mixture of young ambitious professionals and experienced, diligent leading partners‘. The US group is recognized for its extensive geographical coverage and it frequently works alongside its top-tier London-based international arbitration team to handle major multi-jurisdictional disputes. The firm notches up a steady stream of both commercial and investor-state cases, with a focus on energy, financial services, corporate and IP disputes. In Washington DC, global department vice-chair Rachael Kent and the ‘highly professionalDanielle Morris are key contacts. John Pierce heads the international arbitration practice in New York and is a ‘very effective arbitration counsel‘, according to some. New York is also the seat of senior counsel James Carter, who is widely hailed as a reference in the market.

Practice head(s):

Rachael Kent; John Pierce


‘We as clients expected the best, and we were delivered the best. WilmerHale has a team composed of the perfect mixture of young ambitious professionals and experienced, diligent leading partners. In every aspect the team totally fulfilled expectations.’

‘Great and well-resourced international arbitration practice in New York.’

‘Deserves its status at the top of the tree. Good to see younger partners getting to be known.’

‘One could feel the balance and good team spirit within the team. Very inspiring for clients. Lawyers totally understand clients’ business and needs. No subsequent surprising extra charges.’

I have been consistently impressed by their professionalism and their understanding of how arbitration works.’

James Carter and Rachel Kent are very able advocates who represent their clients’ positions persuasively and effectively.

‘John Pierce is a well prepared and very effective arbitration counsel.’

Danielle Morris is super friendly, very prepared, forward-looking and highly professional. A quiet and deadly effective advocate.’

Allen & Overy LLP

Allen & Overy LLP's US arbitration practice remains in growth mode, with the recent arrival of new department co-chair Gaela Gehring Flores from Arnold & Porter representing a major coup for the rapidly expanding team. Gehring Flores is 'a truly multicultural practitioner’, whose Latin America expertise adds a further geographical dimension to a group that has also recently been involved in cases involving Africa, Asia and Europe. Patrick Pearsall co-heads the Washington DC-based practice and sources predict he will 'take A&O to the next level in the Americas'. Pearsall was recently appointed by the Kingdom of Sweden to act as lead counsel on a multibillion-dollar claim brought by Aura Energy under the Energy Charter Treaty.

Other key lawyers:

Bradley Pensyl


‘The firm’s outstanding market knowledge enables them to give client-oriented advice. It is always a pleasure to work with them because they are able to understand the most complex technical issues with cross-border elements.’

‘Particularly in international arbitration, it is crucial to have a team that understands the changing geopolitical issues and market dynamics. Allen & Overy LLP exceeds expectations.’

‘We worked on several large-scale disputes together. They are attentive and proactive. We enjoy working with the firm because they are practical and client-oriented, most importantly, they have a well-organized and experienced team to handle large scale international disputes.’

‘Patrick Pearsall is a well-established thought leader in international arbitration with a loyal following of clients. He brings a deft touch with clients to an otherwise cerebral and well-thought-out approach to cases.’

‘Patrick has a very nice manner before tribunals and instils trust and confidence immediately. He will take A&O to the next level in the Americas, while also adding formidable strength to the global IA offering. He is a potential future head of the group, in my view.’

‘This is a firm with very impressive capabilities in international arbitration, particularly with the hire of Gaela Gehring Flores. She is an excellent attorney and fully understands the Latin American market. The firm will be very strong representing both states and investors.’

‘Gaela is a very talented attorney who delivers results for her clients. Her track record is above excellent. Also, even though she was educated and trained in the US, she is very familiar with Civil Law, particularly in Latin America. She knows the market very well and understands the culture. She is a truly multicultural practitioner.’

‘A&O has become a very compelling offering on the East Coast with the recruitment of Patrick and Gaela. While the firm traditionally had an excellent reputation for international arbitration work globally, they were light in this area for their Americas offering. That is no longer the case.’

Key clients

Kingdom of Sweden

Bridgepoint Group Limited and Watkins Holdings S.à r.l.

Mubadala and Masdar Solar & Wind Cooperatief U.A

Republic of Sierra Leone

Republic of Peru

Work highlights

  • Acting as lead counsel to the Kingdom of Sweden in a multibillion-dollar claim brought by Aura Energy under the Energy Charter Treaty, relating to a ban imposed by Sweden on the mining of uranium.
  • Acting for a construction company on a claim against an Eastern European former CIS State.
  • Representing an infrastructure investment company in connection with advice regarding the potential termination of a management services contract with P5 Infrastructure.


Baker & Hostetler LLP undertakes a range of commercial and investment arbitration cases, including complex state-to-state disputes. The national group is active across the full scope of industries, with technology, telecoms, and energy and natural resources standing out as core strengths. Key names in Washington DC include international arbitration and litigation group lead Mark Cymrot, investor-state arbitration head Kenneth Reisenfeld and Analia Gonzalez, who spearheads the Latin America arbitration and litigation practice. In Houston, Sashe Dimitroff is noted for his emphasis on energy-related matters. Marco Molina recently relocated to the Costa Mesa office to boost the department's West Coast offering.

Other key lawyers:

Marco Molina; Paul Levine

Key clients

Latam Hydro LLC and CH Mamacocha [owned by former eBay executives]

Resolute Forest Products, Inc.

Westmoreland Coal Company

Empresa Siderurgica Del Mutun

True Blue Development, Limited

ITG Brands LLC., Commonwealth Brands Inc., Liggett Group LLC, Japan Tobacco U.S.A. Inc., and others

China Telecom Global and China Telecom (Americas) Corp.

Hydra-Pro Dutch Harbor, Inc.

Pyrotek, Inc.

Evoqua Water Technologies, LLC, successor to Siemens Industry, Inc.

Superior Energy Services, Inc. (as well as its subsidiaries Superior Energy LLC and Integrated Products Services)

Work highlights

  • Representing Latam Hydro, and its Peruvian subsidiary, in an investment dispute with the Republic of Peru relating to violations of the US-Peru Trade Promotion Agreement and breaches of a 20-year guaranteed revenue concession to provide hydroelectric generated renewable energy to the Peruvian grid.
  • Representing Resolute Forest Products in a $103m investor-state NAFTA Chapter 11 claim against the Government of Canada, centering on a dispute over the Canadian government’s support for a bankrupt paper mill in Nova Scotia.
  • Representing Westmoreland Coal Company in a $500m NAFTA Chapter 11 arbitration against the Government of Canada relating to compensation for the phase-out of coal-fired energy.

Baker McKenzie LLP

Baker McKenzie LLP is distinguished by its enviable multinational platform and sources affirm, 'the great strength of the firm's international arbitration practice is its massive global footprint'. The US arbitration team routinely works alongside other practice groups, industry specialists and international offices to represent clients in complex multi-jurisdictional cases worldwide, with a strong showing in both commercial and investor-state disputes. 'Formidable advocate' Brendan Cook chairs the North America arbitration group from Houston and is a popular choice for energy, real estate, insurance and construction clients. In Chicago, the 'smart and sensible' Kyle Olson is noted, while the 'super-smart and tenacious' Eugenie Rogers was recently promoted in Dallas. Former global arbitration chair Michael Morkin joined Venable LLP in 2021.

Practice head(s):

Brendan Cook


‘The US-based team seamlessly handles and coordinates complex issues, successfully integrating local external counsel, various experts and delay/quantum claim consultants.’

The great strength of the firm’s international arbitration practice is its massive global footprint. It has skilled practitioners throughout the world.’

‘The Baker team is highly competent, responsive, collaborative and proactive in managing various claims on our construction project. They provide sound strategic advice on how we can secure the best outcomes, while also being attentive in listening to the project team to understand our industry, client and unique project challenges.’

‘Fantastic combination of industry experience, technical skills and a commercial and pragmatic approach to the efficient resolution of disputes.’

Brendan Cook is a great strategic thinker who freely shares his advice on how we can navigate our many complex claims and DRB proceedings to best position us for success. He has also delivered excellent oral presentations.’

‘Brendan makes for a formidable advocate of our case, listening well, quick of mind and decisively interpreting the facts and the contract to support our position. Provides effective guidance to (laymen) witnesses in preparing for hearings.’

‘Kyle Olson is a stand-out partner, definitely on his way up. He is smart and sensible and does not needlessly pick fights. He thoroughly understands all the issues and works productively with everyone in the arbitration in his client’s interest.’

Eugenie Rogers is super-smart and tenacious and has an incredible ability to assimilate large amounts of (oftentimes technical) information to build our cases. She is creative and frequently offers up fresh perspectives on how best to argue a matter, connecting the dots that our project team may not have considered.’

Key clients

Manolium Processing

Marriott International

Republic of Armenia

Work highlights

  • Successfully represented Marriott International in a contract dispute in an international arbitration before the Stockholm Chamber of Commerce.
  • Secured a win for Manolium Processing in an investment arbitration against the Republic of Belarus, under UNCITRAL rules and the provisions of the Treaty on the Eurasian Economic Union.
  • Represented the Republic of Armenia in an arbitration brought by a Dubai company concerning an infrastructure project that failed to progress.

Clifford Chance

'A growing practice', according to sources, Clifford Chance's US arbitration offering is noted both for its capability in US and Latin America-related disputes, as well as its ability to plug into the wider firm's global arbitration group. The team is well versed in commercial and investment treaty arbitrations, with a particular emphasis on construction, energy and infrastructure disputes. Washington DC-based David DiBari spearheads the US litigation and dispute resolution practice and specializes in defending global companies in multi-jurisdictional litigation. In New York, Anthony Candido has a focus on commercial disputes, including arbitrations. Counsel José García Cueto, based in Washington DC, is a 'young remarkable attorney' and handles commercial and investor-state cases.


‘This is a growing practice that has gone from handling smaller matters in LatAm to handling billion-dollar disputes. If I were a potential client I would like to know that they respond very fast to queries, are sharp and leave no stone unturned.’

‘Clifford Chance (Washington DC office) has a very dynamic, fast and aggressive performance as litigation attorneys. They also have good rates in comparison with other law firms of the same tier.’

‘The Clifford Chance Latin American practice is a thriving group. They are very flexible in terms of fee arrangements and provide a top-quality service.’

‘Innovation-wise we have been working with them through a tech interactive portal owned by CC, which allows multiple people to work in parallel in the matter and always receive updates as to the different work streams.’

‘José García Cueto stands out as a hard-working and detail-oriented lawyer. Always available and with a comprehensive knowledge of both US and LatAm matters.’

‘José García Cueto is an outstanding lawyer with deep knowledge of arbitration.’

‘José García Cueto is a young remarkable attorney. He is well known in the arbitration community and is a wonderful oral advocacy attorney.’

‘José García Cueto is an outstanding attorney. He reacts very well under strong job pressures, he delivers good products in short time frames and he has a lot of experience even at his young age.’

Key clients

Odebrecht Latinvest S.À.R.L.

Crocus Nano Electronics

Enel Fortuna, S.A.

Ingeniería Estrella, S.A.

Consorcio Copán


Steag GmbH

Work highlights

  • Represented Odebrecht Latinvest in a $1.1bn ICSID investment arbitration concerning a pipeline concession.
  • Successfully represented Crocus Nano Electronics, a Russian microchip manufacturer, in a New York-seated ICC arbitration arising from the breach of technology development and licence agreements.
  • Represented Enel Fortuna in an ICSID dispute with the Republic of Panama regarding its investment in the energy sector.

Cooley LLP

Cooley LLP finds favor for its 'deep experience in commercial and investor-state disputes' as well as its 'expertise in the tech industry', leveraging its firm-wide strength to support its activity in the latter sphere. Life sciences is also a core specialism, and the group routinely advises on arbitrations arising from partnering deals and drug manufacturing agreements. Rachel Thorn is an 'excellent advocate, writer and cross-examiner' and steers the practice from New York; she is representing NASDAQ-listed Odyssey Marine Exploration in an investor-state arbitration against Mexico — demonstrating the group's broader appeal to non-tech and life sciences clients. Marc Suskin, also in New York, is held up by sources as 'the "go to" lawyer for tech arbitrations'.

Practice head(s):

Rachel Thorn

Other key lawyers:

Marc Suskin; Jason File


‘The team has deep experience in commercial and investor-state disputes, particularly in the areas of tech and life sciences. Other strengths lie in the firm’s expertise in the tech industry, where it has an unparalleled client base in the fields of tech and life sciences.’

‘Excellent communicators, who keep me updated about every step of the process.’

‘The team we have been exposed to comprises mainly of experienced partners, especially in the litigation field.’

‘The individuals at Cooley had very specific hands-on experience about our disputes. Especially Marc Suskin, who had previous experience with international disputes and arbitration.’

Rachel Thorn is an excellent advocate, writer and cross-examiner. Jason File is excellent. Very good working with witnesses and strategists.’

‘Marc Suskin is the “go to” lawyer for tech arbitrations. He has led several high-profile tech arbitrations in the past year, including some involving novel issues of mass arbitrations, where claims are brought by several individuals against tech companies and providers.’

‘Marc Suskin and Rachel Thorn are excellent strategists, focused on case details and the broader goal. They work to resolve disputes on a commercial basis, not necessarily taking cases all the way to trial.’

Key clients


Baymina Enerji, A.Ş. (subsidiary of Engie)

Bursel Tekstil Sanayi ve Diş Ticaret A.Ş


Jazz Pharmaceuticals

Marsh & McLennan Companies

Odyssey Marine Exploration


Tekfen-TML Joint Venture, Tekfen Construction, TML Construction

Vir Biotechnology

X4 Pharmaceuticals

Work highlights

  • Representing Odyssey Marine Exploration in a UNCITRAL arbitration brought under Chapter 11 of NAFTA against Mexico.
  • Representing Turkish construction companies Tekfen İnşaat ve Tesisat and TML İnşaat, and their joint venture, as claimants in an ICC arbitration against Libya and the Man-Made River Authority, pursuant to a construction contract.
  • Representing Marsh & McLennan Companies in seven ICDR international employment arbitrations in connection with the acquisition of a specialty insurance firm, and the subsequent departure of several senior executives to a competitor.

Dechert LLP

Dechert LLP is well equipped to handle commercial and investor-state arbitrations on behalf of a mix of clients, including sovereign states, state-owned enterprises, corporations and high-net-worth individuals. The group’s sector experience is equally comprehensive, with recent strong showings in internet governance, energy, mining and telecoms-related matters. Based between Washington DC and London, global department co-chair Arif H. Ali is particularly recognized for his record in investor-state disputes. From Washington DC, Alexandre de Gramont strikes a balance between investor-state and commercial arbitration cases — he also acts on enforcement matters, such as his recent work for the Republic of Poland on recognition and enforcement proceedings in the US. Érica Franzetti left to join King & Spalding LLP.

Practice head(s):

Arif Ali

Other key lawyers:

Alexandre de Gramont; David Attanasio 

Key clients

MOL Hungarian Oil and Gas PLC (MOL)

Afilias USA, Inc.

Republic of Poland

DotConnectAfrica Trust

Russian Arbitration Centre (RAC)

The Plurinational State of Bolivia

Mariyam Mohamed, Former Head of Women’s Football at the Football Association of Maldives

The Czech Republic

Republic of Colombia

Work highlights

  • Represented MOL Hungarian Oil and Gas (MOL) in an ICSID arbitration against Croatia under the Energy Charter Treaty, in a dispute concerning Croatia’s treatment of MOL’s investment exceeding $1bn.
  • Secured a victory for Afilias USA in an ICDR arbitration against the Internet Corporation for Assigned Names and Numbers.
  • Successfully represented a global travel retailer against a luxury goods manufacturer and retailer in a JAMS commercial arbitration arising from a dispute over a share purchase agreement.


'Very experienced in international matters', Dentons group is also commended as being 'highly competent and always well-prepared'. The US arbitration practice sits as part of the firm's global international dispute resolution group and routinely represents clients in both domestic and multi-jurisdictional cases. The team's broad practice scope encompasses the full range of commercial and investment arbitrations and it also handles a significant volume of enforcement matters. New York-based John Hay heads the international disputes group for the US and advises on commercial and investor-state arbitrations. Anthony Ullman, also in New York, is noted for his emphasis on disputes relating to IP, construction, health care and energy.

Practice head(s):

John Hay


‘They are very experienced in international matters. I am a full-time arbitrator and mediator of commercial disputes and have conducted mediations and arbitrations in which Denton lawyers represented one of the mediating or arbitrating parties. They are highly competent and always well-prepared.’

‘I commend the following individuals with whom I have worked directly: John Hay and Anthony Ullman.

Key clients

Gran Colombia Gold Corp

GA Telesis, LLC

Scatec Solar Brasil Services De Engenharia LTDA

Work highlights

  • Represented Gran Colombia Gold Corp on an ICSID arbitration against the Republic of Colombia under the Canada-Colombia Free Trade Agreement, asserting claims for expropriation, failure to protect and safeguard, and failure to provide fair and equitable treatment.
  • Secured a $22m LCIA award for US aviation company  GA Telesis against Transaero, formerly Russia’s second-largest commercial airline undergoing bankruptcy.
  • Represented the owner of a solar power plant in Brazil in confidential arbitration proceedings under ICC rules concerning a construction dispute.

Eversheds Sutherland

Driven out of Washington DC and New York, Eversheds Sutherland's arbitration group scores highly for its 'professional, goal-oriented and organized team'. The 'very cohesive' practice is recognized for its broad industry experience across a range of investor-state, commercial and public international law cases — under all major arbitral rules. The group is also distinguished by its ability to marshal international support internally on large-scale, cross-border matters, and it frequently acts in cross-office teams alongside its international colleagues. New York is the seat of global international arbitration co-chair Meriam Nazih Al-Rashid, who specializes in public international law-related disputes, including commercial and investor-state arbitration. In Washington DC, department co-head William O’Brien ('a deep knowledge of the law') and John Lomas ('an incredible eye for detail') are key contacts.


‘Eversheds Sutherland is an international law firm, well known and respected for its expertise, organizational abilities and effective implementation. Clients can expect an expert adviser and a “no frills”, efficient, professional, goal-oriented and organized team to support their aims.’

‘The team is very cohesive and it is apparent they respect one another and give great care in representing their clients.’

‘William O’Brien combines a deep knowledge of the law and the workings of international arbitration with a natural politeness and sensitivity to cultural differences and is, for this reason, particularly effective. Diligent, punctual, imaginative but also realistic and down-to-earth.’

‘I appreciate William O’Brien and his team’s pragmatic approach to matters and keeping within budget.’

‘William O’Brien in the Washington office is an adjunct professor at Georgetown University Law Center. Will is an extremely competent and knowledgeable lawyer, who is very responsive, pleasant to work with and highly cooperative. He is also a very dedicated professor and a great mentor to students.’

‘John Lomas is a warrior, very well versed in the law, an incredible eye for detail and benefits from a deep well of patience which never seems to empty. Polite and easy to work with, nevertheless with clear objectives and an effective implementer.’

Key clients

Honwood Services Limited

Future Pipe International B.V.


Symbion Energy Holdings, Ltd.

Haulotte Group

Work highlights

  • Representing Honwood Services in an approximately €1.4bn dispute arising out of Poland’s Ministry of Environment’s treatment of Honwood’s potash mining project.
  • Representing Future Pipe International (FPI) in a $240m investment treaty case against the Arab Republic of Egypt arising out of Egypt’s Ministry of Housing’s introduction of a series of decrees that impeded the business of FPI’s investment in Egypt.
  • Represented Leidos in successfully obtaining the payment of a $58m ICC arbitral award issued against the Hellenic Republic.

Gibson, Dunn & Crutcher

New entry Gibson, Dunn & Crutcher LLP merits a ranking on the back of its diverse roster of major arbitration cases. Over the past year, the firm secured a series of high-profile arbitration and enforcement victories for clients in the energy, mining, manufacturing and infrastructure sectors, among other industries. In a highlight, it successfully represented Yukos Capital against Russia in a Geneva-seated arbitration involving the expropriation of Yukos Capital’s loans to its former parent company Yukos Oil — the tribunal awarded Yukos Capital more than $5bn. The team’s ability to work alongside its top-tier appellate practice in US recognition and enforcement proceedings is also a significant differentiator. New York-based Rahim Moloo is the key contact and acts on an array of investment treaty and commercial arbitration matters. New York-based Lindsey Schmidt acted alongside the London office to lead the Yukos Capital representation and is also recommended.

Other key lawyers:

Lindsey Schmidt; Charline Yim; Rahim Moloo

Key clients

Crystallex International Corporation

Liberty Mutual

Exelon Corporation


Corral Morocco Holdings

Angel Samuel Seda, JTE International Investments LLC, Jonathan Michael Foley, Stephen John Bobeck, Brian Hass, Monte Glenn Adcock, Justin Timothy Enbody, Justin Tate Caruso, and the Boston Enterprise Trust

Antin Infrastructure Services Luxembourg S.à.r.l. and Energia Termosolar B.V.

Tethyan Cooper Company



Yukos Capital

Eiser Infrastructure Limited

HP, Inc.

Resource Capital Fund LPs

North American Sugar Industries

Herbert Smith Freehills

The US arm of Herbert Smith Freehills' globally respected international arbitration practice is comprised of 'outstanding practitioners', according to sources. The three-partner group draws on lawyers qualified to practice in the US, UK, France, Argentina, Singapore and Brazil, among other jurisdictions, and is consistently involved in major commercial and investor-state arbitrations worldwide. Practice sweet spots include energy, infrastructure and mining, but the New York-based team is frequently appointed to advise on arbitrations across all industry sectors. Latin America and US arbitration head Christian Leathley is New York- and UK-qualified and represents an impressive roster of major multinational energy corporations in major disputes. Amal Bouchenaki, who is dual qualified in New York and France, is 'a leading global arbitration practitioner' and acts on a mix of international investment treaty and commercial arbitrations.


‘HSF-NY has the finest arbitration practitioners in the market. They do everything better than anyone else.’

HSF has developed a modern way of using technology to be predictive of estimated costs of specific phases or events of a litigation or an arbitration, which is very useful to clients who wish to have an ability to anticipate the costs of a legal proceeding.

Christian Leathley is a highly respected international arbitration practitioner with substantial experience in disputes involving Latin America and in treaty arbitrations, as well as commercial disputes. Additionally, he is an excellent speaker on complicated substantive arbitration issues.’

‘The Herbert Smith Freehills arbitration team is filled with outstanding practitioners. Amal Bouchenaki is a standout for her work ethic and deep understanding of investment treaty arbitration issues. The firm offers creative thinking around client billing and transparency regarding incurred costs on an ongoing basis, which is a refreshing change to many firms.’

‘Christian Leathley and Amal Bouchenaki are in total command of their fields — treaty and commercial arbitration.’

Amal Bouchenaki is extremely smart, hard working and efficient. She is very responsive to clients and colleagues in the field and she is an excellent authority on arbitration issues, regularly speaking at arbitration conferences around the world. She is highly respected as a leading global arbitration practitioner.’

‘Amal Bouchenaki is a delight to work with. She is very well versed in the detail of her cases and has a deep and thorough knowledge of the legal issues, particularly in respect of investment treaty arbitration, and develops sound commercial strategies to face complex situations and maximise client recoveries.’

Key clients

Andes Petroleum

Chevron Corporation

Republic of Italy

Work highlights

  • Representing Andes Petroleum Ecuador in an arbitration in which Andes seeks to recover its 40% share of a $1bn arbitral award from Occidental Exploration and Production Company.
  • Representing Chevron Corporation in its defense against an $18bn sham arbitral award issued against it and Saudi Aramco by a corrupt arbitration center in Egypt, including securing various criminal convictions.
  • Representing the Republic of Italy in relation to two enforcement actions.

Jones Day

The 'extremely client-oriented' group at Jones Day is roundly praised for its ability to resource 'complex and sophisticated matters', with its responsiveness, teamwork and partner-led service all common themes among sources. The arbitration practice sits within the firm's global disputes department, led by Washington DC-based Gregory Shumaker, and is distinguished by its integrated, cross-practice approach. As such, arbitration teams are often staffed with lawyers from outside the arbitration group, including appellate and IP specialists. Melissa Gorsline, also in Washington DC, is highlighted as 'extremely experienced in the field of investment arbitration' — she additionally acts on commercial matters. In San Francisco, experienced counsel Steven Smith and 'diligent and hard working' associate Paul Hines are also noted. Charles Kotuby left to join the Pitt Law Center for International Legal Education.

Practice head(s):

Gregory Shumaker


‘Jones Day is excellent at handling complex and sophisticated matters. Their analysis, comprehension of difficult issues, presentation skills, and advocacy are excellent. They can handle medium, large, and mega disputes. As compared to other large firms their trial skills are more extensive and successful.’

‘Jones Day is extremely client-oriented: such degree of flexibility and availability (notwithstanding, for example, time zones) one would not always see with international law firms. This is on top of wealth of experience, deep knowledge of the field and ability to identify the risks, as well as to explain them to the client in a finely digested way.’

‘Excellent global expertise combined with deep local knowledge.’

‘The team is exceptional and works well together with their associates. Partners play an active role and concentrate not only on the big picture but also on the details of the case. The use of technology is outstanding, personnel availability is excellent. Reaction times are short, budget questions solved almost immediately.’

As a firm Jones Day has extensive experience in most areas of law and therefore they can handle non-construction matters that arise on construction disputes (e.g. assessing allegations of fraud or dealing with bankruptcy issues).’

‘The team works together seamlessly. Their responsiveness is another level as the partners are just as engaged as other more junior colleagues. They make a client feel safe, which justifies every dollar spent on the case.’

‘Melissa Gorsline – excellent vision of the case and great strategist.’

‘Melissa Gorsline is extremely experienced in the field of investment arbitration and demonstrates that every step of the way. We felt very safe in her hands. Associate Paul Hines was a great addition to the JD team. Very diligent and hard-working, understanding all the nuances of investment arbitration.’

Key clients

World Wide Minerals Ltd.

Visor Group (Vladislav Kim and others)

Omega Engineering LLC

Alhambra Resources Ltd

Windoor AS

Internet Corporation for Assigned Names and Numbers (ICANN)

Hillar Teder, et al

Mr Abed El Jaouni

Work highlights

  • Acted as lead counsel to Windoor in an ICSID arbitration against the Republic of Kazakhstan arising from the expropriation of the clients’ rights under an earlier SCC arbitration award.
  • Represented Internet Corporation for Assigned Names and Numbers in an ICDR arbitration arising from an auction for rights to operate the .WEB domain name.
  • Represented Kazakhstani claimants in an ICSID arbitration against the Republic of Uzbekistan relating to investments made in the Uzbek cement industry.

Mayer Brown

Mayer Brown's US arbitration practice is a part of the firm's global group, which benefits from on-the-ground teams in Europe, Asia and Latin America. The team's robust cross-border offering strikes the right note with sources, who praise its lawyers' ability to 'work closely with their clients locally', while also providing 'solid representation in international arbitration occurring on other continents’. The team handles both commercial and investor-state arbitrations, seated in the US and abroad, with notable experience in the energy, food and beverage, chemicals and technology sectors. New York-based Ted Howes heads the firm’s US international arbitration practice and specializes in representing US and foreign companies in commercial disputes, with niche expertise in arbitrating China-related matters. In Houston, Michael Lennon is noted for his combination of international arbitration and energy expertise. Sarah Reynolds left to join Goldman Ismail Tomaselli Brennan & Baum LLP.

Practice head(s):

Ted Howes

Other key lawyers:

Michael Lennon; Hannah Banks


‘Mayer Brown has an excellent team of experienced individuals who are highly resourceful and can be depended upon to provide their client with in-depth knowledge to take the right decision. Their team works as a cohesive team, drawing on all their in-house resources.’

‘The firm has a strong team of highly competent litigators across the globe, who are able to work closely with their clients locally, while providing solid representation in international arbitration occurring on other continents.’

‘Ted Howes is focused on international arbitration, and works collaboratively with his clients and other firm members, to be able to successfully manage complex international litigation matters, involving issues of contract, intellectual property, and business practices claims.’

‘I have worked closely with Ted Howes and his team and they are outstanding in the guidance, as well as the clear opinions with which they provide my company to take the right decisions regarding our arbitration. He was a great support for us to manage and prepare for the ICC hearing.’

Key clients

Lion Mexico Consolidated L.P.

Capri Sun GmbH and Capri Sun Group Holding

Solvay S.A.

Work highlights

  • Secured an arbitration victory for a global light-emitting diode technology company in a virtual ICC arbitration with live witnesses in Japan, Europe and across the US.
  • Represented a multinational chemical company in defending an ICC arbitration commenced by a Brazilian company, involving claims worth $140m.
  • Represented an international service provider for the oil and gas industry in an ICDR arbitration initiated by an engineering and technical services company.

Paul Hastings LLP

The 'diversified team' at Paul Hastings LLP impresses with its spread of 'nationalities, cultural backgrounds and locations, as well as genders'. The group's diverse international composition combines with the wider firm's global footprint to provide clients with 'strong capability in handling parallel international arbitration proceedings', including across multiple jurisdictions. The group is also distinguished by its strength in life sciences and Japan-related cases. From Washington DC, Joseph Profaizer steers the global international arbitration practice and counts public and private corporations and sovereign states among his clients. Igor Timofeyev, also in Washington DC, maintains a broad practice encompassing appellate litigation as well as international arbitration.

Practice head(s):

Joseph Profaizer


‘Paul Hastings has a strong capability in handling parallel international arbitration proceedings. They also have a diversified team who can handle cases in different jurisdictions.’

‘We have a very long good working relationship with Paul Hastings. This firm gives us professional and practical advice based on deep and comprehensive understanding of our business and relationship with our business partners.’

‘The firm has a strong culture emphasizing the professional values of client-focus, sincerity and trust. The firm’s international footprint and network are also very helpful to us as we operate worldwide and work with more multinational business partners in different jurisdictions.’

‘Their advice is very specific, precise and informative. Their strength is to point out precisely the points we have to manage, which we’ve never thought of, to give advice on various and broad areas, their quick responses, the character of counsels and so on.’

‘Their team of partners and associates who helped us through the international arbitration and settlement negotiation consisted of very diverse professionals in terms of nationalities, cultural backgrounds and locations, as well as genders. Many of them are even multilingual.’

‘They all have not only professional knowledge and experience but also strong communication and collaboration capability, with us and among themselves. They explained the legal issues involved in the arbitration to our business managers in a brief, clear, easy but accurate manner. ‘

‘Mr. Joseph Profaizer is a lead counsel for our case. His explanation is always clear cut and precise. He has so much experience in this practice and we feel very relieved when we work together with him.’

‘Ms. Sachiko Taniguchi is very supportive and knowledgeable in this practice. Her actions and responses are also quick.’

Key clients

American International Group (AIG)

Global Gaming Asset Management

Nu Dotco

Mitsubishi Tanabe Pharma Corp.

Daiichi Sankyo

Work highlights

  • Representing Nu Dotco in a dispute resulting from a successful bid to operate a new internet top-level domain (TLD).

Reed Smith LLP

Among Reed Smith LLP's key attributes, sources value its 'deep client commitment' and 'strong preparation skills'. The US arbitration practice successfully utilizes its robust Miami platform as a springboard into Latin America — it also fields well-staffed arbitration teams in New York and Houston. Additionally, the group acts alongside the firm's arbitration specialists in London, Paris, Hong Kong, Singapore and Dubai to represent global clients in multi-jurisdictional matters. Miami-based global arbitration head José Astigarraga is a force in Latin America-related arbitrations, where he specializes in representing companies in commercial and investor-state disputes. Cristina Cárdenas, also in Miami, has 'deep international law knowledge', while New York-based James Duffy is noted for his 'understanding of the needs of life sciences companies’.

Practice head(s):

José Astigarraga


We value the firm’s bench strength and deep client commitment. Not only does Reed Smith have strong preparation skills — essential — but collaboration and responsiveness is top-notch.’

‘Lawyers understand the problem, the business, the objective. There is no insistence to go ahead with the arbitration/litigation; they fully understand that the business commands.’

‘José Astigarraga simply exceeds expectations by far; he understands the business, the main objectives, takes care of the details. Really, an amazingly distinguished person and professional.’

‘James Duffy is commercially savvy and has carved out a true understanding of the needs of life sciences companies.’

Cristina Cárdenas has a nearly encyclopedic knowledge of arbitration procedures and deep international law knowledge. Seamless and flawless appearing in English or Spanish. Effective and articulate. Client-focused too. A real bonus on your team.

Edward Mullins demonstrates exceptional leadership. Smart, responsive, and flexible. Exceptionally talented cross-examiner with deep arbitration expertise. He is a litigation all-star who can “field and hit”. Deeply committed to his clients.

‘William Russell has both the legal acumen and the practical knowledge to identify and address issues. This unique skillset provides us with full confidence in having him handle our disputes.’

Shearman & Sterling LLP

The team at Shearman & Sterling LLP sets itself apart through its 'deep knowledge' and 'practical approach', according to some. Notching up a geographically broad case list, which includes matters involving the US, Latin America and the Middle East, the New York-based group is well-equipped to handle a range of construction disputes, commercial arbitrations and investor-state cases. In Washington DC, the 'proactive and commercial' Christopher Ryan is a key contact for private and state clients looking for support on construction, energy and mining disputes. In New York, Henry Weisburg has a focus on cross-border financial disputes.


‘Deep knowledge, practical approach. The firm has offered briefings on key industry trends driven by political changes – this kind of value-add is appreciated.’

‘Christopher Ryan is responsive, proactive and commercial.’

Key clients

Stoneway Capital Corporation

Republic of Panama

ENKA Insaat ve Sanayi A.Ş.

Nevada Copper Incorporated

Work highlights

  • Representing Stoneway Capital Corporation, and its Latin American subsidiary, in an ICC arbitration in New York initiated by a Latin American construction contractor arising from an EPC contract for the construction of a power plant.
  • Representing Turkish contractor ENKA Insaat ve Sanayi in an ICC arbitration in London against certain entities within Chubb, related to claims pursued by Chubb in the Russian courts.
  • Representing the Republic of Panama in treaty claims brought by Omega Engineering and Mr Oscar Rivera arising from the alleged expropriation of multiple infrastructure construction contracts.

Squire Patton Boggs

Clients highlight Squire Patton Boggs' ability to 'work as a truly global team'. The strength of its cross-border offering is borne out by an increasingly international client list, which recently saw the firm add six new sovereign nations to its roster, including Nigeria, Peru and Romania. Alongside its work for states and state-owned entities in investor-state arbitrations, the group also has a strong record in representing energy companies in natural gas price review disputes. In New York, investment arbitration co-head Miriam Harwood stands out for her 'brilliant legal mind'; she counts states from across Europe, the Middle East and Latin America among her clients. Stephen Anway, who splits his time between New York and Washington DC, is global co-chair of the international dispute resolution practice and handles a mix of investor-state and commercial arbitration cases. New York-based associate Carlos Guzmán Plascencia is an 'upcoming leader'.

Practice head(s):

Stephen Anway


‘A real powerhouse of a law firm. The New York team are diligent, commercial and always considerate of its clients’ needs.’

‘The Squire team stands out from other IA counsel for at least three reasons. First, they are hard working and dedicated — the client comes first. Second, the team is super intelligent and detail-oriented. Third, the Squire team is pleasant to work with.’

‘They work as a truly global team and have some outstanding lawyers. Collaboration is the key here – and team work.’

‘Stephen Anway always shows deep knowledge of the whole pattern of the case, effectively and professionally coordinating the work and team to develop the best strategies for each investment arbitration case.’

‘Miriam Harwood is my favorite lawyer of all time. She has the WOW factor and with her brilliant legal mind, when she talks, people stop and listen immediately. A perfect blend of sincerity and fierce.’

Ali Gursel is highly creative in finding legal solutions; he carefully reads the expert reports and prepares thoroughly for cross examination. He also is a leading light in IA matters.’

John Branson is a hands-on international arbitration leader. He dives deeply into the analytics of the matters and drafts very powerful and effective legal arguments.

Carlos Guzmán Plascencia is an upcoming leader in IA matters. Carlos understands the most complex quantitative and technical issues of the claims and plays an instrumental role in the success of Squire’s IA team.

Key clients





Dominican Republic


The Republic of Estonia


Republic of Croatia

The Slovak Republic


Costa Rica



Edison SpA (Italy)

Naturgy (Spain)

Work highlights

  • Successfully represented Turkmenistan in an ICSID arbitration brought by a Turkish company and its main shareholder, involving $500m in claims regarding 32 construction projects in Turkmenistan.
  • Secured a victory for the Slovak Republic in a €160m arbitration brought under the Polish-Slovak BIT.
  • Represented Turkmenistan in an arbitration involving $2bn in claims initiated by Russian telecommunications company MTS.

Vinson & Elkins LLP

The 'highly intelligent and creative' practice at Vinson & Elkins LLP stands out for its specialist focus on energy, infrastructure development and construction disputes. The team secures a steady stream of both commercial arbitration and investor-state disputes and acts for the full range of private and public companies, sovereign states and state-owned entities. James Loftis drives the international dispute resolution practice from Houston and is widely recognized for his skill sets in the oil and gas and construction spheres. In New York, Camilo Cardozo demonstrates 'huge experience and knowledge' and is noted for his focus on Latin America-related matters. Counsel José Sanchez also has a significant LatAm dimension to his practice.

Practice head(s):

James Loftis 

Other key lawyers:

Camilo Cardozo; José Sanchez


‘Excellent team from V&E; all lawyers have an excellent knowledge of arbitration and claims.’

‘We particularly value the team’s dedication to learning our business and understanding our people.’

‘Lawyers are highly intelligent and creative in presenting the best case possible to further our interests.’

‘Camilo Cardozo is the best lawyer/advisor that I have worked with. He is an excellent lawyer with huge experience and knowledge.’

Key clients

Panama Canal Authority

Khaitan Holdings (Mauritius) Ltd.

Ministry of Oil of the Republic of Iraq

Exxon Mobil Corporation

KBR, Inc.

Offshore Exploration and Production LLC

Tampico Beverages Inc

E Energija UAB

Basrah Oil Company

CMC di Ravenna

Work highlights

  • Representing the Panama Canal Authority in a series of arbitrations arising out of the Panama Canal extension project.
  • Representing the Ministry of Oil of the Republic of Iraq (as representative of the Republic of Iraq) in two arbitrations.
  • Representing Basrah Oil Company in a number of contentious matters,

Winston & Strawn LLP

Winston & Strawn LLP is recommended by sources for its 'depth of experience in international treaty arbitrations' — the firm is equally capable in commercial disputes. The US practice is spread across the firm's domestic offices and frequently teams up with teams abroad to provide integrated global advice in multi-jurisdictional cases. The group's comprehensive sector expertise is also a big draw for clients, and it has recently acted on cases involving the energy, mining and technology sectors, among others. In Chicago, 'business-oriented' group head Ricardo Ugarte acts for an array of corporate and state clients. Houston-based Imad Khan is an 'excellent senior associate'.

Practice head(s):

Ricardo Ugarte

Other key lawyers:

Imad Khan


‘The Winston team is very strong on substantive ability and case management. They handle cases very well and are easy to deal with.’

‘It is an outstanding team, very client-oriented and always available.’

‘They are competent, proactive and with good knowledge of the law invoked in the case.’

The team is very capable and does good work. The team has a good knowledge of arbitrators, which is key to any arbitration practice.

‘We value the depth of experience in international treaty arbitrations.’

Ricardo Ugarte is very knowledgeable and has an excellent presence. Ricardo is outstanding at client counseling, providing good advice and describing the pros and cons of various strategies. He has a nice rapport with the arbitrators and has done a very good job at hearings.’

‘Ricardo Ugarte is a remarkable lawyer; business-oriented and pleasant to work with.’

Imad Khan is an excellent senior associate for international arbitration issues. Imad is knowledgeable about arbitration issues, is responsive to concerns, and does a good job managing facts.’

Key clients

Dominion Minerals Corp.

Eskosol S.p.A.

Disabled Athlete Blake Leeper

Work highlights

  • Representing Dominion Minerals Corp in claims brought under the US-Panama BIT concerning Dominion’s investment in a copper and gold concession in western Panama.
  • Representing Eskosol in an investment treaty arbitration against Italy arising from Italy’s departure from an incentive regime it created for investors in the solar photovoltaic energy field.
  • Representing Blake Leeper in his Court of Arbitration for Sport challenge to IAAF rules restricting his and other disabled athletes’ ability to compete against able-bodied athletes free from discrimination in IAAF-sanctioned and Olympics events.