Firm Profile > Oppenheim Ugyvedi Iroda > Budapest, Hungary

Oppenheim Ugyvedi Iroda

Hungary > Commercial, corporate and M&A Tier 1

At Oppenheim Ugyvedi IrodaJózsef Bulcsú Fenyvesi leads the team, which is highly experienced in representing investors and corporates in the energy, manufacturing, banking, insurance and IT sectors. The team’s workload covers mergers and demergers, joint ventures and work relating to private equity and venture capital investments. Mihály Barcza, who is a ‘well-known finance and corporate lawyer’, is the other M&A specialist; he recently acted as local counsel to Bristol-Myers Squibb in the landmark transaction comprising the divestment of Celgene’s Otezla (a drug against psoriasis) business. Attila Terényi, Gábor Kordoványi and Ágnes Száz make up the other key contacts.

Practice head(s):

József Bulcsú Fenyvesi

Other key lawyers:

Mihály Barcza; Gábor Kordoványi; Attila Terényi; Ágnes Száz


‘They work in a team for us: the experience and network of the partner in charge and the detailed attention and flexibility of the lawyer makes a unique combination.’

‘The individuals work well together as a team – clean division of work’

‘The Oppenheim firm is a great firm, having been Freshfields before. Great team culture, very innovative, esp in marketing and legal tech. ’

‘Mihaly Barcza – very efficient and well-known finance and corporate lawyer’

Key clients



Budapest Electric Works / North Hungary Electric Works

K&H Bank

Generali Insurance Co.

Portfolion (venture capital arm of OTP Bank)

Uniqa Insurance



Hewlett Packard

Ringier Axel Springer


Wizz Air

Lufthansa Technik

Hungary > Competition Tier 1

Oppenheim Ugyvedi Iroda‘s pre-eminent competition practice is comprised of ‘experienced and exceptionally collaborative individuals’ who are well-equipped to advise on cartels merger control, abuses of dominance, market sharing and procurement cases, among others. The firm also regularly represents clients in the energy, telecommunications, healthcare and banking sectors in judicial reviews and follow-on damages claims before the Hungarian Competition Authority. Gábor Fejes specialises in cartel investigations, while Zoltán Marosi is noted for advising on mandates involving abuses of dominance, merger control and state aid.

Practice head(s):

Gábor Fejes; Zoltán Marosi


‘Oppenheim law firm’s competition practice group is made of highly-skilled, widely experienced and exceptionally collaborative individuals, who know not only the authority’s case law practice, but also the latest scientific researches of this practice area, and they have broad overview of other countries’ competition laws too. They have a sound understanding of business operations that makes the team able to support companies very quickly.’

‘No matter how complex our business processes are, lawyers at Oppenheim always know how to take the bull by the horns, and they quickly understand what the business needs’ 

‘Zoltan Marosi has everything a business would need for competition law support including sound knowledge of competition law (both practice and theory), ability to partner proactively and creatively, great personality with high communication skills.’

Key clients

OTP Bank

BSH (BoschSiemensHausgeräte)

Borsodi Sörgyár (Molson Coors)

XXXLutz / Sigma

Hungarian Banking Association






Hungary > Dispute resolution Tier 1

Tamás Éless is the lead partner at Oppenheim Ugyvedi Iroda, which undertakes a wide range of contentious mandates, ranging from corporate and commercial litigation to insurance, international arbitration and professional liability cases. Counsel Zsolt Farkas has a strong track record in civil law liability claims, real estate disputes and bankruptcy and liquidation matters.

Hungary > Intellectual property Tier 1

Clients praise Oppenheim Ugyvedi Iroda‘s IP practice for offering ‘good value for money’ and the ‘very approachable’ team, which is co-led by Ivan Bartal and Áron László. The group’s areas of expertise include trade mark litigation, portfolio management, commercial IP transactions and data protection. It is also knowledgeable about IP issues that interface with emerging sectors of TMT, such as smart cities, car2car communication and blockchain.

Practice head(s):

Ivan Bartal; Aron Laszlo


‘quick, practicable, business-minded, smart, good value for money. ’

‘Very approachable, ready to do the extra mile for you, reliable’

‘Ever since moving our IP protection to the Oppenheim team, we have a 100% success rate, including in such high profile cases as the recent award of an injunction against our key competitor.’

Key clients

Wizz Air Hungary Kft.

Hell Energy Magyarorszag Kft.

Fresenius Kabi

Vodafone Shared Services





QX World



Hungary > Employment Tier 2

Oppenheim Ugyvedi Iroda‘s Budapest team, which is led by Zsolt Cselédi, is highly regarded by banking, construction, retail and telecoms sector clients. Its core areas of activity include assisting clients with the employment aspects of M&A, collective redundancies, terminations and employment audits. It is also active in litigation. Senior counsel Lívia Mihovics is another key contact.

Practice head(s):

Zsolt Cseledi

Other key lawyers:

Lívia Mihovics


‘Strong employment team delivering on expectations’

‘Good negotiation skills’

Key clients

Vodafone Hungary Telecommunications

Vodafone Shared Services Budapest

Continental Automotive and Powertrain

HELL Energy Beverages Ltd.

British American Tobacco

Strabag Ltd.

TIGÁZ Gas Producer

Egis Pharmaceuticals

UniCredit Bank Hungary

CIB Bank Hungary

Avalon Hotels Ltd.

Hungary > Projects and energy Tier 2

Gergely Légrádi leads Oppenheim Ugyvedi Iroda‘s ‘very knowledgeable‘ team, which excels in projects in the nuclear, electricity and renewable energy sectors. The varied workload includes advice to clients on environmental matters, day-to-day operations and energy disputes. Légrádi is currently working with senior counsel Petra Tasi and associate Dávid Hanis to advise the Hungarian Energy and Public Utility Regulatory Authority on the planning and installation of the new nuclear power plant Paks II. The firm also has a strong following among German clients operating in the Hungarian market.

Practice head(s):

Gergely Légrádi

Other key lawyers:

Petra Tasi; Dávid Hanis


‘They are very knowledgeable about their fields of expertise and at the same time not shy about highlighting areas where they feel outside expert advice should be sought, which allows for easy collaboration with them. They work seamlessly with our international experts and can present all information in a clear, concise and well structured manner.’

‘Mr. Legradi and Ms. Tasi have been exceptionally helpful in realising our project. They keenly highlight potential risk and at the same time offer a range of solutions. They anticipate client needs and show a great deal of flexibility to adapt to fit the work of our organization which is undergoing large scale development.’

Key clients

Omexom Magyarország Kft.

MFT Energy AS

ISH Food Group

TRMEW Obrót S.A.

Global Energy

Ministry of Foreign Affairs and Trade and Adria Port Zrt.


Hungarian Energy and Public Utility Regulatory Authority


AUDI Hungária Motor Kft.


Volkswagen AG

Axpo Trading

RWE Supply and Trading

ELMŰ Nyrt.

ELMÜ-ÉMÁSZ Energiaszolgáltató Zrt.


HSE d.o.o.

OMV Gas Marketing and Trading GmbH

Interenergo d.o.o.

Danske Commodities

Naftna Industrija Srbije j.s.c.

Budaörs Municipality

Törs Waste Management

Hungary > Real estate and construction Tier 2

Oppenheim Ugyvedi Iroda‘s team comprises of ‘experienced colleagues with broad market knowledge’ and ‘an understanding of the construction market’. The department is led by Márk Pintér, who is a member of the Royal Institution of Chartered Surveyors. His practice spans residential development projects, as well as sales and purchases of commercial buildings, retail centres and hotels. Elsewhere, the firm also advises on financing, leasing and restructuring of all major asset classes of real estate. Associate Janos Fodor is recommended for office and retail leases.

Practice head(s):

Márk Pintér

Other key lawyers:

Janos Fodor


‘The assigned lawyers from Oppenheim are always looking for practical solutions, trying not to complicate further the situations.’

‘Experienced colleagues with broad market knowledge, understanding also the construction market as well as the needs of their clients. We are very satisfied with the performance of Dr. Pinter.’

Key clients



Beghelli Group

Lone Star Funds / Hudson Advisors

AEW Europe

TRIUVA / Patrizia



ZFP Investments

IAD Investments

Polat Group



Hungary > Banking, finance and capital markets Tier 3

Oppenheim Ugyvedi Iroda is recognised for its banking capabilities in the local and regional market, where it acts for banks and borrowers on the full spectrum of financial and capital markets transactions. The team is noted for its strength in the banking regulatory space and in solar financing and real estate finance Practice head. Péter Horvai-Hillenbrand has over 16 years of experience acting for clients on a range of lending arrangements.

Practice head(s):

Peter Horvai-Hillenbrand

Key clients


CIB Bank

VUB Bank

UniCredit Bank

PPF Banka

Raiffeisen Bank

VHK Zrt.




Taghleef Group

Hungary > Data privacy and data protection Tier 3

Oppenheim Ugyvedi Iroda has a strong regulatory and litigation background and regularly conducts data protection audits, advises on GDPR implementation and compliance projects and represents clients in regulatory proceedings. Ivan Bartal chairs the practice, which is a popular choice for telecoms, life sciences, food and drink, and banking clients.

Practice head(s):

Ivan Bartal

Key clients




LKH Leoni


HELL Energy

Vodafone Shared Services

Bank Gutmann




Mediszintech Audiológia Kft.


Tarsago Magyarország (formerly Reader’s Digest)

The firm: With its numerous international connections, Oppenheim has long played a leading role in the area’s legal market. Since Hungary’s political transition Oppenheim has focused on domestic and international commercial law. The firm first became affiliated with Vienna-based Austrian law firm Heller Löber Bahn in 1989. In testament to the reliability and high quality of its legal services together with the expertise of its legal team, leading German law firm Bruckhaus Westrick Heller Löber partnered with Oppenheim in 1989. This partnership facilitated the increased provision of multi-jurisdictional legal support to clients at a time of rapid globalisation in the legal services market. Many Oppenheim lawyers with the firm today have been with it since this time, or were then at the outset of their careers and have attained their professional knowledge within the firm. The subsequent merger between the law firms Freshfields, Deringer Tessin Herrmann & Sedemund, and Bruckhaus Westrick Heller Löber in 2000, under the name Freshfields Bruckhaus Deringer, was an important milestone for Oppenheim, both professionally and culturally.

Being a member of an extensive multi-jurisdictional network required Oppenheim to meet exacting international standards. It was then, and is now, a basic tenet for Oppenheim that all lawyers working at the firm should acquire a broad depth of international experience and qualifications while also expanding the firm’s presence in foreign markets. The theoretical and practical knowledge gained by its lawyers in the international arena over the years has radically enhanced the skills and experience of the firm’s outstanding team of professionals.

A sharp focus on professionalism coupled with a depth of social responsibility bonds the firm’s team of lawyers together and strengthens internal cohesion. The team consists of many outstanding individuals from diverse backgrounds who work harmoniously and effectively together, and share the same values and principles.

By the end of 2005, the shortcomings of the business models employed by large international law firms were becoming apparent and a need for increased flexibility and a new form of business organisation through which to provide sustainable high-quality legal services in the domestic market was emerging. After a year’s preparation, a newly independent commercial law firm was launched on 1 November 2007, under the original Oppenheim name and retaining all lawyers.

Since 2007, the firm has grown in leaps and bounds and as well as setting up shop in Vienna Oppenheim is currently the second biggest firm on the Hungarian market both in terms of the number of fee-earners as well as revenues. Oppenheim has also racked up an impressive amount of awards and other accolades in the process, recently chosen ‘National Law Firm of the Year’ in Hungary by Chambers and Partners, regularly ranked among the best in all important areas of commercial law by The Legal 500, and with most of the firm’s partners being recognised as leading in their areas on the Hungarian legal market. The firm has also strengthened its international ties and is currently the exclusive Hungarian member of leading international networks First Law International and Lexwork.

Areas of practice: Oppenheim currently consists of 40 plus lawyers and legal experts who provide advice on all areas of Hungarian and Austrian business law including general corporate affairs, mergers and acquisitions, finance, competition law, antitrust law, real estate law, public procurement law, environmental, planning and regulatory law, and IP/IT, and has a renowned contentious practice with experience in matters before state courts and national and international arbitration courts.

The attorneys of Oppenheim provide their legal expertise through a combination of specialised practice groups and sector experience including corporate (labour law, real estate projects and IP/IT), dispute resolution (also arbitration and contentious IP), finance, antitrust, competition and trade (including competition and consumer protection related litigation), public procurement, regulatory and energy, and real estate practice groups, and sectors such as capital markets, banking, construction, energy, utilities, automotive, healthcare, media, IP/IT and the services industry.

Department Name Email Telephone
Banking and finance Peter Horvai
Capital markets Mihaly Barcza
Competition/antitrust Gabor Fejes
Construction Zoltan Mucsanyi
Corporate/M&A Jozsef Fenyvesi
Dispute resolution Tamás Éless
Energy and natural resources Gergely Légrádi
Environment Ulrike Rein
IP/IT, data protection Ivan Bartal
Trade marks and designs Aron Laszlo
Labour and employee benefits Zsolt Cseledi
Life sciences Ulrike Rein
Projects and project finance Zoltan Mucsanyi
Real estate Mark Pinter
Restructuring and insolvency Tibor Kiss
Photo Name Position Profile
 Tamás Éless  photo Tamás Éless Partner; Attorney-at-law
 Mihály Barcza  photo Mihály Barcza Partner; Attorney-at-law
 Iván Bartal  photo Iván Bartal Partner; Attorney-at-law
 Zsolt Cselédi  photo Zsolt Cselédi Partner; Attorney-at-law
 Gábor Fejes  photo Gábor Fejes Partner; Attorney-at-law
 József Bulcsú Fenyvesi  photo József Bulcsú Fenyvesi Partner; Attorney-at-law
 Péter Horvai-Hillenbrand  photo Péter Horvai-Hillenbrand Partner; Attorney-at-law
Dr Tibor Kiss M.  photo Dr Tibor Kiss M. Partner; Attorney-at-law
 Gergely Légrádi  photo Gergely Légrádi Partner; Attorney-at-law
Dr Aron Laszlo  photo Dr Aron Laszlo Partner; Attorney-at-law
 Zoltán Mucsányi  photo Zoltán Mucsányi Partner; Attorney-at-law
 Klára Oppenheim  photo Klára Oppenheim Partner; Attorney-at-law
 Márk Pintér  photo Márk Pintér Partner; Attorney-at-law
Dr Ulrike Rein  photo Dr Ulrike Rein Partner; Attorney-at-law
 Attila Terényi  photo Attila Terényi Partner; Attorney-at-law
 Marosi Zoltán  photo Marosi Zoltán Partner; Attorney-at-law
Number of lawyers : 53
First Law International
Other office : Vienna