Firm Profile > Curtis, Mallet-Prevost, Colt & Mosle LLP > New York, United States

Curtis, Mallet-Prevost, Colt & Mosle LLP
NEW YORK, NY 10178-0061
United States

Dispute resolution > International arbitration Tier 2

Described by clients as ‘impressive across the board’, Curtis, Mallet-Prevost, Colt & Mosle LLP is at the forefront of investment treaty arbitration – an area in which it is recognized as the go-to counsel for sovereign clients and state-owned enterprises. With more than 100 high-profile arbitrations in its docket over a five-year period, it is difficult to single out any one matter, though among its notable work, the team has been representing the Bolivarian Republic of Venezuela for over a decade. The international arbitration is led out of New York by firm chairman George Kahale III, an ‘outstanding manager’; in the same office, Benard Preziosi Jr is noted for his significant expertise in the quantification of damages. The New York team is noted in particular for its track record in the energy, oil and gas, and telecoms sectors. The Washington DC-based team is also highly regarded in the oil and gas sector, as well as in the areas of mining and financial services. Claudia Frutos-Peterson (‘well respected’) is the name to note in the DC office; she is active in investor-state arbitrations, but also regularly receives arbitrator appointments.

Practice head(s):

George Kahale III

Other key lawyers:

Benard Preziosi Jr; Claudia Frutos-Peterson; Justin Jacinto; Simon Batifort


I was impressed with Curtis, Mallet-Prevost, Colt & Mosle’s international arbitration team and its ability to develop smart and effective strategies for complex legal issues and to execute those strategies with excellent expertise, novelty and professional diligence.

Curtis’ lawyers are working closely with their clients and local partners to gain in-depth knowledge of the facts and local laws, which is quite essential for improving their ability to successfully defend their clients’ interests in complex international arbitration cases. Clients are feeling that they are being taken care of by motivated and capable lawyers.

Curtis Mallet has a great international arbitration team, which is impressive across the board. Very creative, very responsive, and very hands-on.

The lawyers at Curtis’ international arbitration practice are very well-prepared, and present very clear, logical, and persuasive cases both in written pleadings and at hearings. What distinguishes them is that they truly believe in the cases they present. They are the best advocates a client could wish for.

The team is fully dedicated, and has shown a clear understanding of the operations and the challenges faced by governments and state-owned entities.

George Kahale is one of the smartest men I have ever met.  On top of that, he is an outstanding manager. He builds teams of experts and lawyers that are dedicated to the case and assist each other; their work capacity and flexibility to adapt to changes and learn the key-to-win core business elements exceeds most service organizations.

George Kahale is a top lawyer in international arbitration. I am impressed by his simple and effective strategies. He has a great ability to develop novel arguments that are right to the point.

George Kahale is a bright legal mind with an excellent understanding of how companies and governments work in the real world. He is unbeatable in both commercial and investment arbitration.

I feel greatly confident working with Claudia Frutos-Peterson due to her professional diligence and her in-depth understanding of arbitration. She is very good at dealing with people, works hard, and always takes good care of all details of the cases. She would never give up and would not stop working until she feels comfortable with all aspects of her client’s defense. All this makes her a prominent and well-respected lawyer that can successfully lead a strong defense in complex international arbitration cases.

Benard Preziosi is always very well-prepared and has an excellent command of all facts of the case, which results in his presentation of very persuasive arguments.

Key clients

Republic of India

Bolivarian Republic of Venezuela / Petróleos de Venezuela (PDVSA)

Republic of Cyprus

Republic of Indonesia

Republic of Kazakhstan

Kingdom of Spain

State of Libya & National Oil Corporation of Libya

Republic of Uganda

State of Kuwait

Albpetrol Sh.A.

Ghana National Petroleum Corporation

Kingdom of Saudi Arabia

Czech Republic


Mellitah Oil & Gas B.V.

Socialist Republic of Vietnam

Russian Federation

The United Nations

G.N. Terminal Enterprises



Dominican Republic

Republic of Ecuador

Dispute resolution > International trade Tier 3

Curtis, Mallet-Prevost, Colt & Mosle LLP’s ‘strongest points lie in its deep knowledge of trade law issues and the communication between the firm’s various offices’. Indeed, the team puts these advantages to good effect in its trade remedy litigation work; a distinctive specialization and an areas in which it appears in cases against the Trump administration and provides defense services to a mix of foreign governments, exporters, and US importers. The team’s recent work also highlights the expansion of its involvement in section 232 matters and national security issues. Further, the practice group also has notable expertise in WTO law, including issues pertaining to the application of the WTO Agreements and legal issues arising beyond the US legal framework. Daniel Porter chairs the international trade group; Porter splits time between Washington DC and Geneva, as do James Durling and Matthew McCullough, all of whom are recommended by clients.

Practice head(s):

Daniel Porter

Other key lawyers:


The strongest points of Curtis, Mallet-Prevost, Colt & Mosle LLP’s international trade team lie in its deep knowledge of trade law issues and the communication between the firm’s various offices.

The team is excellent. Its work was thorough, timely, and reasonable from a cost standpoint.

The firm is relatively small, but clients will know that the lawyers that are working the cases – as opposed to meeting a partner or two but then having the core work done by more junior lawyers. At Curtis, the partners are fully engaged in every project – from working with clients to submit accurate information, conceiving the best approach to take in a given dispute, and personally writing the legal briefs. This dedicated personal client attention is a major plus.

Daniel Porter, James Durling and Matthew McCullough — all are excellent and each has different strengths.  Dan is the most client-centered lawyer I have known in my 20 years of experience; he is fully committed to his client’s case and works exceptionally hard to provide the best possible outcome for the client. Jim is very astute lawyer, with an uncanny ability to identify the key issues are in a dispute. An indispensable member of the team, Matt is very familiar with US and WTO subsidies and countervailing duties and has deep knowledge of all procedural aspects.

Key clients

LG Electronics

Saha Thai Steel Pipe Company

Toyo Kohan


Association of Exporters and Industry of Table Olives

Government of Canada

Vicentin/ Carbio/ Government of Argentina

LG Hausys America

Red Sun Farms

Citrosuco North America

Sinomex Agrosolutions

SK Hynix



Ministry of Commerce of China


M&A/corporate and commercial > M&A: middle-market (sub-$500m) Tier 4

Curtis, Mallet-Prevost, Colt & Mosle LLP is very well placed to handle cross-border deals and transactions with an international bent. Indeed, in addition to its focus on mid-market M&A, the team is also recognized for its work on inbound investments into the US, where it benefits from the expertise of the firm's CFIUS practitioners. The corporate team also has broad experience of securities transactions and private equity matters. Lawrence Goodman heads the M&A group and co-chairs the corporate practice; he is particularly experienced in acting as counsel for New York investment banks. The group has seen some personnel changes over the past year: John Nielsen joined as partner from an general counsel position at Hunt Financial Securities; Raymond Hum left for an in-house role at Verisign, and Jeffrey Ostrager left for Venable LLP. Named attorneys are based in New York.

Practice head(s):

Lawrence Goodman

Other key lawyers:

John Nielsen; Valarie Hing


‘Top notch firm with quality people at all levels’.

‘Clear responses, proper billing’.

Key clients

BWX Limited


MSC Industrial Direct Co.

DRS Technologies, Inc.

Artha Capital

Pernod Ricard

Brevet Capital Management

Paint Over Rust Holdings, Inc.

Prescott General Partners

See-Out Pty., Ltd.

Tax > International tax Tier 4

Curtis, Mallet-Prevost, Colt & Mosle LLP's work is inherently international. Indeed, the firm has core focus on areas including investor-state arbitration and international transactions, where it acts for multinational corporates and various entities of sovereign states. Key figures in the team include Marco Blanco, who divides his time between the firm's New York, Paris, and Geneva offices, and Klas Holms in New York. Clients have noted in particular Blanco's long-standing reputation and strong client relationships. Both Holms and Blanco have extensive experience of cross-border transactions and tax structuring, and international tax controversy.

Practice head(s):

Marco Blanco; Klas Holm

Other key lawyers:

Eduardo Cukier


Complete ‘partner’ mindset with respect to how they have worked with us as their clients across a range of projects. Can’t imagine a better working relationship than with Marco Blanco and the respective team around the table at C-M.

My experience has been consistently strong, never failing to provide an accurate advice that has direct relevance to the application of law in real life.

Working with the entire Curtis team has been a pleasure, but the reputation Marco Blanco has managed to build over the years means that his advice is effectively a definitive point in any discussion.

The dynamic between different individuals in the team is seamless. Not only do they work off each other, but they communicate in a manner that allows clients to speak to any one individual and them to be aware of what is ongoing between the client and every other member of the team.

Partners provide clients a feeling of security and tranquility that they are in good hands and what needs to be done is being taken care of.

Key clients


Pernod Ricard

Government of India

Investment funds > Private equity funds (including venture capital) Tier 6

Led by Carl Ruggiero, the team at Curtis, Mallet-Prevost, Colt & Mosle LLP is noted for its expertise in sovereign wealth funds, and is adept at assisting its solid client base of high-net-worth individuals, financial institutions, fund managers and sponsors with a broad range of work in this space. Also recommended in the New York team is Shaun Reader, who is very experienced in advising on fund formation mandates.

Practice head(s):

Carl Ruggiero

Other key lawyers:

Key clients

Brevet Capital Management

Pantheon Ventures

United Gulf Bank

HBM Partners

Livingston Securities

Starbridge Venture Capital

Tax > US taxes: non-contentious Tier 6

Curtis, Mallet-Prevost, Colt & Mosle LLP acts for public and private corporations, tax exempt entities and high-net-worth individuals, where it has advised on domestic M&A, capital markets transactions and the formation of private equity funds. Marco Blanco and Klas Holm jointly lead the practice group.

Banking and finance > Banking and finance Tier 4

Curtis, Mallet-Prevost, Colt & Mosle LLP has shifted its emphasis away from Venezuela to Mexico following changes in the political administration and the ensuing political instability. Key clients now include PNC Bank, Grupo Posadas, Banco Nacional de Obras y Servicios Públicos (Banobras), Banco Nacional de Comercio Exterior (Bancomext) and Nacional Financiera (Nafin). Rodrigo Valverde Sánchez is the key figure in Mexico City where he advised PNC Bank, as administrative agent and lead arranger, on a $135m secured revolving credit facility for C&D Technologies. He also led the team that advised Banobras, Nafin and Bancomext as senior lenders, on the restructuring of a $1.7bn credit facility for Altán Redes, the concession-holder for the development of a 4G fiber optic network in Mexico.

International arbitration > International arbitration Tier 4

Curtis, Mallet-Prevost, Colt & Mosle LLP is praised for its 'strong presentation skills in hearings, in-depth research and cogent written submissions'. It is widely recognised as a market leader representing states and state-owned entities in investment treaty disputes. New York-based group head George Kahale III is representing respondent Venezuela in a series of arbitrations, including an ICSID arbitration commenced by subsidiaries of ConocoPhillips with respect to petroleum projects, and a dispute concerning the nationalisation of a manufacturer and supplier of materials used in the extraction of crude oil. Other highlights include acting for a Mexican state-owned company in an LCIA arbitration in a high-value construction dispute. Claudia Frutos-Peterson  and Gabriela Álvarez Ávila are also recommended members of the team, which, however, lost Kate Brown de Vejar and Miriam Harwood to DLA Piper LLP (US)  and Squire Patton Boggs respectively.

Curtis, Mallet-Prevost, Colt & Mosle LLP, founded in 1830, is a leading international law firm providing a broad range of legal services to clients globally. Curtis operates through its 17 offices in the US, Europe, Latin America, the Middle East and Central and East Asia. The firm’s international orientation has been a hallmark of its practice for nearly two centuries.

Dedicated to counseling clients involved with some of the most challenging international transactions and complex multijurisdictional disputes, Curtis represents multinational companies, international financial institutions, governments and state-owned entities, family and other privately held businesses, entrepreneurs, and high-net-worth individuals. The firm has assisted governments and companies to develop financial structures, infrastructure and energy, and telecommunications in many emerging nations.

Main areas of practice
Capital markets: Curtis assists clients through all stages of the capital-raising process. The firm counsels issuers, investment banks, private equity funds and strategic shareholders in capital raising in different jurisdictions.

Energy and power: Curtis offers extensive experience in matters relating to the international petroleum and power industries. The firm’s work in this area includes the structuring, negotiation and drafting of the full range of international petroleum contracts, project finance transactions and international litigation and arbitration.

Finance: attorneys handle the full complement of debt and equity finance issues, including structured and asset-backed lending, issuances and placements in the public and private securities markets, the bilateral and syndicated bank market, and other institutional capital markets.

International arbitration: ranked among the top firms globally, Curtis has been retained to handle many of the world’s largest and most significant disputes. Curtis is well known for acting on behalf of states, state-owned entities and international organizations, both in disputes and non-contentious matters.

International investment: Curtis is uniquely positioned to help non-American companies take advantage of the business opportunities presented in the US and other jurisdictions. The firm’s multidisciplinary group of lawyers have backgrounds in commercial transactions, M&A, import/export, IP and tax.

International tax: provides sophisticated tax counsel in high-profile transactions and disputes, with particular expertise in cross-border tax planning.

International trade: Curtis’ top-rated international trade group provides practical solutions to global trade, international investment, market access and export control issues.

Investment management: advises on the structuring, implementation and ongoing maintenance of investment funds.

Litigation: advises on contested matters in courts, administrative and appellate forums, domestic arbitration, and corporate internal investigations. The firm also has an active white-collar crime practice.

M&A and private equity: represents private and public companies, private equity firms, hedge funds, governments and state-owned companies in a broad range of mergers and acquisitions.

Project finance and infrastructure development: active in major project finance transactions in the international petroleum and power industries.

Real estate: advises on virtually every type of real property. Clients include governments, private and sovereign funds, REITs, corporate lenders and developers of all types, as well as individuals, partnerships and corporate investors.

Restructuring and insolvency: Curtis has developed a reputation as the leading law firm in ‘conflicts counsel’ and special counsel engagements. Clients encompass debtors, creditors, lenders, equity owners, trustees and liquidators.

Chairman : George Kahale III
Other Offices : Almaty
Other Offices : Ashgabat
Other Offices : Astana
Other Offices : Beijing
Other Offices : Buenos Aires
Other Offices : Dubai
Other Offices : Frankfurt
Other Offices : Geneva
Other Offices : London
Other Offices : Mexico City
Other Offices : Milan
Other Offices : Muscat
Other Offices : Paris
Other Offices : Rome

For nearly two centuries, Curtis has represented Latin American-based clients, as well as international clients doing business in the region. Established in 1991, Curtis’ Mexico City office was one of the first to be opened by an international firm in Mexico. Buenos Aires followed in 2011. Curtis’ Latin America practice is among the largest of any international law firm and is highly developed. It has an enviable track record of helping clients, including governments, state-owned entities, corporates and private individuals, achieve successful results in their transactions and disputes. The firm’s Latin America practice is particularly well known for its oil and gas, corporate, and arbitration focus.

The firm: Curtis, Mallet-Prevost, Colt & Mosle LLP, founded in New York in 1830, was one of the first US law firms to develop a truly international practice. The firm has always had an international outlook and a pioneering spirit: it remains the only US-headquartered firm licensed to operate in Oman. With 17 offices across the Americas, Europe, the Middle East and Central and East Asia, this internationalist tradition continues today.

Main areas of practice: Curtis represents Latin American governments and state-owned companies and advises internationally based clients on acquisitions and dispositions of assets and equity interests throughout Latin America. Its clients in the region operate across a broad range of industries, including oil and gas, metals, water, energy, industrial and consumer products, agriculture and food products, telecommunications, transportation, finance, media and tourism. The Latin America team has counseled on transactions in virtually every country in the region. All Curtis lawyers in Mexico City are bilingual and many hold law degrees from Latin American jurisdictions, placing Curtis in a unique position among international law firms. Its attorneys have intimate and first-hand knowledge of the region combined with experience advising on some of the largest transactions in Latin America. Curtis’ Mexico City office routinely draws upon the firm’s international network to provide full-service representation to clients in Latin America. The firm’s international arbitration practice is particularly strong in Mexico City precisely because Curtis utilizes this integrated team approach.

The Buenos Aires office advises clients on local and international matters in the fields of banking and financial services, agribusiness, real estate, project finance and infrastructure, joint ventures, mergers and acquisitions, investment management, venture capital, restructuring and litigation. Clients include domestic and foreign companies and individuals, commercial and investment banks, as well as governments and multilateral agencies.

Department Name Email Telephone
Firm chairman George Kahale III E:
Managing partner (Mexico) Eloy Barbará de Parres E:
Managing partner (Buenos Aires) Luis Maria Ayarragaray E: