Firm Profile > Oppenheim Ugyvedi Iroda > Budapest, Hungary

Oppenheim Ugyvedi Iroda

Commercial, corporate and M&A Tier 1

Oppenheim Ugyvedi Iroda is singled out for its 'reliable legal support, result-oriented approach and cost-efficient mindset' as well as its 'solid cross-border capabilities'. The practice focuses on the energy, manufacturing, financial services, automotive, and media industries. Practice head József Bulcsú Fenyvesi leads the 'strong and experienced team', which also includes Mihály Barcza, who is praised for his 'quick response and excellent M&A transaction experience'; Attila Terényi, and senior associate Ágnes Száz, who is experienced in securities and investment regulatory matters. Associate Gábor Kordoványi is also noted.

Practice head(s):


Very practical, solution oriented lawyers. Excellent communication of pragmatic advice. Excellent overview of local market practice.’

‘Solid cross-border capabilities.’

Mihály Barcza has excellent M&A transaction experience.

Key clients



Budapest Electric Works

North Hungary Electric Works


Fundamenta Home Savings

Generali Insurance Co.

MET Group

OTP Bank


OTP Digital Fund

Uniqa Insurance



Hewlett Packard

Competition Tier 1

Oppenheim Ugyvedi Iroda's dedicated competition team handles a broad spread of antitrust matters, ranging from cartel investigations to state aid matters. The team is particularly active in the energy, telecoms and banking sectors. Competition specialist Gábor Fejes focuses on cartel and compliance matters, while the highly regarded Zoltán Marosi specialises in abuse of dominance, merger control and state aid matters. Marosi represents clients in court, and recently acted for Artisjus in an abuse of dominance case. Associate Balázs Csépai is also a name to note.

Practice head(s):

Key clients

OTP Bank



Hungarian Banking Association


Wizz Air


Paradox Systems

Dispute resolution Tier 1

Oppenheim Ugyvedi Iroda is regularly involved in major litigation and arbitration proceedings involving sovereign states. Its expertise spans the construction, financial services, insurance, transport and real estate sectors. Litigator Tamás Éless heads up the team, which also includes counsel Zsolt Farkas, who has notable experience in civil law liability claims, real estate disputes and bankruptcy and liquidation matters.


Very experienced and mature lawyers providing balanced and client-friendly advice‘.

Key clients




TEVA Pharmaceuticals Europe

the Ministry for National Economy



Epamedia International






Intellectual property Tier 1

Oppenheim Ugyvedi Iroda advises on the IP aspects of M&A transactions including IP protection, the acquisition and exploitation of IP rights and GDPR compliance issues; the team also has notable strength in IP litigation. Ivan Bartal and Áron László are highly recommended.

Practice head(s):


Always highlights the main risks and weights them from the client’s prospective‘.

Key clients







HELL Energy




Wizz Air



PPG Trilak

Projects and energy Tier 2

Oppenheim Ugyvedi Iroda recently demonstrated its strength in the major projects space when it advised the Hungarian Ministry of Foreign Affairs and Trade on its acquisition of a significant part of Port of Trieste. The team also handles energy trading and environmental issues. Department head Gergely Légrádi is recommended for transactional and regulatory matters, and senior associates Petra Tasi  and Dávid Hanis are also names to note.

Practice head(s):


The entire team with the leadership of Gergely Légrádi is very responsive and proactive. When supporting sensitive and very complex matters, it is essential for the client that the legal team is not only experienced but having excellent negotiation skills and always open to find a reliable and lawful solution‘.

Gergely Légrádi and Petra Tasi not only know every relevant detail of the matters they handle, they are often ahead of all the other stakeholders by a couple of steps‘.

Key clients


Hungarian Energy and Public Utility Regulatory Authority


AUDI Hungária Motor Kft.

Ministry of Foreign Affairs and Trade


Volkswagen AG

Aspect Holding Management

Axpo Trading

Solymár Municipality

RWE Supply and Trading

ELMŰ Nyrt.

ELMÜ-ÉMÁSZ Energiaszolgáltató Zrt.

National Toll Payment Services PLC


HSE d.o.o.

OMV Trading


Danske Commodities

Naftna Industrija Srbije j.s.c.

Solar Partners s.r.o.

Budaörs Municipality

Törs Waste Management

Pinsent Masons


GrowGreen Europe AD

Kepler Trading GmbH

Real estate and construction Tier 2

Oppenheim Ugyvedi Iroda's team, led by Márk Pintér, advised on a number of multimillion-euro retail and office buildings sales and acquisitions. The team also has experience in leasing, restructuring, financing and real estate fund transactions, and handles the disposal of major asset classes of real estate. It recently advised Duna Terasz Premium on a residential development project. Associate Janos Fodor is also a name to note.

Practice head(s):

Key clients



Beghelli Group

Lone Star Funds / Hudson Advisors

AEW Europe

TRIUVA / Patrizia



ZFP Investments

IAD Investments

Banking, finance and capital markets Tier 3

Oppenheim Ugyvedi Iroda handles buyout financing, project financing and banking regulation matters. Its expertise also spans IPOs, listings, delistings, and securitisations. Mihály Barcza and senior counsel Péter Horvai-Hillenbrand are names to note.

Data privacy and data protection Tier 3

Oppenheim Ugyvedi Iroda handles the data protection aspects of M&A transactions; it also advises a broad range of clients in the construction, retail and financial services sectors on GDPR compliance matters. Iván Bartal is 'responsive and understands client's business needs'.

Practice head(s):


‘Ivan Bartal is responsive and understands client’s business needs.

Key clients




Facebook, Inc.



LKH Leoni


HELL Energy

Vodafone Hungary

Vodafone Shared Services

Bank Gutmann



CRH Hungary

Employment Tier 3

Oppenheim Ugyvedi Iroda advises on the employment aspects of big-ticket restructuring mandates, and counts Continental Automotive as a major client. It also recently advised on collective redundancy issues and termination matters. Zsolt Cselédi heads up the team.

Practice head(s):

Key clients

Vodafone Hungary Telecommunications

Vodafone Shared Services Budapest

Continental Automotive and Powertrain

HELL Energy Beverages Ltd.

AVALON Hotels Ltd.

Metro Food Wholesaler

Contrinex Ltd.

Freshfields Buckhaus Deringer

UniCredit Bank Hungary

CIB Bank Hungary

British American Tobacco

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
Dr Tamás Éless  photo Dr Tamás Éless Partner; Attorney-at-law
Dr Mihály Barcza  photo Dr Mihály Barcza Partner; Attorney-at-law
Dr Iván Bartal  photo Dr Iván Bartal Partner; Attorney-at-law
Dr Zsolt Cselédi  photo Dr Zsolt Cselédi Partner; Attorney-at-law
Dr Gábor Fejes  photo Dr Gábor Fejes Partner; Attorney-at-law
Dr József Bulcsú Fenyvesi  photo Dr József Bulcsú Fenyvesi Partner; Attorney-at-law
Dr Péter Horvai-Hillenbrand  photo Dr Péter Horvai-Hillenbrand Partner; Attorney-at-law
Dr Tibor Kiss M.  photo Dr Tibor Kiss M. Partner; Attorney-at-law
Dr Gergely Légrádi  photo Dr Gergely Légrádi Partner; Attorney-at-law
Dr Aron Laszlo  photo Dr Aron Laszlo Partner; Attorney-at-law
Dr Zoltán Mucsányi  photo Dr Zoltán Mucsányi Partner; Attorney-at-law
Dr Klára Oppenheim  photo Dr Klára Oppenheim Partner; Attorney-at-law
Dr Márk Pintér  photo Dr Márk Pintér Partner; Attorney-at-law
Dr Ulrike Rein  photo Dr Ulrike Rein Partner; Attorney-at-law
Dr Attila Terényi  photo Dr Attila Terényi Partner; Attorney-at-law
Dr Marosi Zoltán  photo Dr Marosi Zoltán Partner; Attorney-at-law
Number of lawyers : 53
First Law International
Other office : Vienna