Firm Profile > DLA Piper Weiss-Tessbach > Vienna, Austria

DLA Piper Weiss-Tessbach
1010 WIEN

Dispute resolution: commercial litigation Tier 2

DLA Piper Weiss-Tessbach's sizeable team is well equipped to handle large-scale and multi-jurisdictional proceedings, particularly under US law. In addition, the group has financial services disputes at its core, acting for Austrian and international banks. Claudine Vartian leads the commercial litigation department, which also stands out for its pro bono litigation practice. David Christian Bauer is also noted.

Practice head(s):


The team is goal-oriented which is highly appreciated. The team has, besides legal, excellent business knowledge and great insight into the economic environment. The team is very responsive and able to provide business-oriented advice which the clients appreciate. Another important strength is strategic approach.

The team of DLA Piper (Vienna) has an excellent capability in both litigation and arbitration. They thoroughly analyse each and every step of the arbitration process and have a pro-active approach in leading the case. 

Key clients


UniCredit Bank Austria

Dispute resolution: white-collar crime (including fraud) Tier 2

Under the joint leadership of Thomas Kralik and Claudine Vartian, DLA Piper Weiss-Tessbach's white-collar crime team represents financial institutions, companies and high-profile individuals in sensitive criminal disputes. Other work includes advising on crime prevention and compliance matters, in-house investigations, tax issues and fiscal criminal mandates.

Key clients

Peter Westenthaler

Insolvency and corporate recovery Tier 2

DLA Piper Weiss-Tessbach's team handles a wide range of matters, including cross-border insolvency cases, distressed acquisitions and the refinancing of comprehensive projects. The 'proactive and hands-on' team is advising KBC on a restructuring relating to the insolvency of Uljanik, a Croatian shipyard, in a cross-border matter worth over €160m. The firm acts for international and domestic creditors and companies, including Raiffeisen Bank International and UniCredit Bank Austria. Oskar Winkler is the key contact.

Practice head(s):


Thorough knowledge of (local) appropriate insolvency law, pro-active and hands on, language capabilities.

Key clients



Raiffeisen Bank International

6B47 Real Estate Investors AG

UniCredit Bank Austria AG

Erste Group


Projects and energy Tier 2

The 'versatile' projects and energy practice at DLA Piper Weiss-Tessbach notably focuses on cross-boarder work, acting on concessions and project finance matters. The team, led by practice co-heads Andreas Gunst and Oskar Winkler, recently advised a project company on the development of a gas interconnector, which will run along the Serbian-Bulgarian border, through Serbia and up to the Serbian-Hungarian border. The group also assisted the IFC with the award of a concession for Beirut Airport. Jasna Zwitter-Tehovnik focuses on infrastructure mandates and is 'responsive and legally firm with a pragmatic approach'.

Practice head(s):


Versatile team with readily available expertise in practically all legal fields and many geographical areas.

Cooperative and responsible

It has been a true pleasure co-operating with DLA Piper on a very important project we are realising in Serbia. The team is very professional, very diligent  and very dedicated to the goal.

Jasna Zwitter-Tehovnikvery is responsive; legally firm but pragmatic approach; commercially sensible.

Andreas Gunst is reliable, dedicated and knowledgeable.

I have many words of true appreciation and professional support for Andreas Gunst. He is a true leader in the field not only in Austria but in Europe, at least when we talk about exemption proceedings.’

Key clients

Caroo Mobility GmbH

Citi Global Markets


Eiffel Investment Group

Engie Global Energy Management (“GEM”)/Spain

European Bank for Reconstruction and Development (EBRD)

European Federation of Energy Traders (EFET)

Gastrans d.o.o.



Susi Partners AG

Lietuvos Energija

Petrol d.d. Ljubljana

WEB Windenergie AG

Yugorosgaz a.d.

Banking and finance Tier 3

DLA Piper Weiss-Tessbach is recognised for its project finance work, particularly in the CEE and SEE region. The group also has a strong banking litigation practice through Armin Hendrich; his team acts for financial institutions in large disputes and investigations including US-driven investigations relating to the compliance of European banks with US and US-Iran sanctions. Oskar Winkler and Claudine Vartian jointly lead the team, which also fields Jasna Zwitter-Tehovnik, who has experience in the infrastructure sector; litigator and regulatory expert David Christian Bauer, and Christoph Urbanek.


DLA, as opposed to many local law firms, has a very deep understanding and competence in financial sanctions topics. Among their strengths I would mention their professionalism, close client relationship, understanding client and business interests and needs, high level of delivery, and extreme reliability as a partner.

Versatile team with readily available expertise in practically all legal fields and many geographical areas.

Very adequate availability; prompt reaction to any request or question; pro-active advice and information provision as well as hands on follow up.

Besides his profound knowledge and experience on local laws, Armin Hendrich has also extensive knowledge in international (especially US) sanctions laws. In addition due to his personality and professionalism, working with him is always a pleasure with excellent results.

Jasna Zwitter-Tehovnik –very responsive; legally firm but pragmatic approach; commercially sensible.

Key clients

Eiffel Investment Group

Erste Group

EBRD (European Bank for Reconstruction  and Development)

UniCredit Bank Austria and UniCredit S.p.A.

IFC (International Finance Corporation)

WEB Windenergie AG

6B47 Real Estate Investors AG

Aareal Bank


Capital markets Tier 3

DLA Piper Weiss-Tessbach is a 'reliable partner in all legal topics surrounding capital markets', according to one client. The team is particularly active in the debt capital markets area, advising on matters including bond issuance for both financial institutions and companies. The practice is advising the banking syndicate between Erste Group, ING, Société Générale and UniCredit on the new issue of a €300m corporate bond by Borealis, its first rated bond issue. It also handles contentious work, representing clients against allegations of breach of market abuse regulations. Practice head Christian Temmel is recommended for his 'broad industry knowledge'.

Practice head(s):


We appreciate their international network, i.e. a good combination of local and international knowledge. They also have good knowledge about the construction and real estate industry.

Christian Temmel: good senior in the team, has a broad industry knowledge. Christian Knauder: we like his work style, very down to earth and knowledgeable. He does not get stressed, although times are sometimes stressful.

Very experienced and very high quality of work done, reacts very quickly to every new query, reliable partner in all legal topics surrounding capital markets.

Key clients

Ardagh Packaging Holdings

Nabriva Therapeutics

TTL Information Technology AG

Raiffeisen Bank International


UBM Development AG

Warimpex Finanz- und Beteiligungs Aktiengesellschaft

UniCredit Bank Austria AG

Erste Group Bank AG

Baader Bank AG

EU and competition Tier 3

DLA Piper Weiss-Tessbach advises on all key areas of competition law at a national and European level. Working closely with the firm's German and Brussels offices, the team, which is led by Claudine Vartian, is often involved in multi-jurisdictional matters and has a notable strength in matters relating to abuse of market dominance. Additionally, Vartian and counsel Florian Schuhmacher frequently assist clients with questions regarding merger control.

Practice head(s):


‘The DLA practice is unique because of Florian Schuhmacher, whose main occupation is university professor at the faculty of law at the prestigious Vienna University. Thus, the natural strength of the team is work in matters which require academic skills.’

‘Florian Schuhmacher is certainly capable to get to the roots of competition problems.

Key clients

Lufthansa AirPlus Servicekarten GmbH

Mondelez Österreich

Bridgepoint SAS

Asmodée Group

Telestream LLC

Boston Consulting Group


Columbia Capital LLC

Arcelor Mittal Austria Holding GmbH

Energie-Control Austria


Private client Tier 3

DLA Piper Weiss-Tessbach acts for Austrian entrepreneurial families on the structuring and protection of their assets, for instance in preparation for a takeover by the next generation. Practice head Christoph Mager has a core focus on multi-jurisdictional asset structuring for high-net-worth individuals. The firm's service offering is complemented by Dimitar Hristov's tax advice for clients from the CEE/CIS region and Elisabeth Stichmann's in-depth knowledge of Austrian private foundations.

Practice head(s):

Key clients

H.M.Z Privatstiftung

Tax Tier 3

At DLA Piper Weiss-Tessbach, planning and transactional law as well as tax disputes and tax criminal law are core strengths of the department; the group also has notable expertise in matters in the Russian and CEE markets assisting high-net-worth individuals and leading business men. Dimitar Hristov heads up the practice, which fields multiple tax lawyers who are also admitted as tax consultants.

Practice head(s):


They seek for an individual solution rather than propose a ready product.

They are always available, ready to answer your call and give the comfort that your matter is dealt by them.

Key clients

Abry Partners II LLP

Zoetis Inc

Commercial, corporate and M&A Tier 4

Acting for domestic and international clients and listed companies in the mid-cap and large transactional space, DLA Piper Weiss-Tessbach's corporate practice focuses on the financial services industry and is closely interlinked with the firm's capital market practice. The group also receives praise for its expertise in the life sciences and energy sectors and handles private equity and reorganisation work. Practice head Christoph Mager and leads the China desk, which was established in 2019. Maria Doralt also 'stands out for her unrivalled commitment and impressive negotiation skills'.

Practice head(s):


We love the very business driven approach and their way of handling negotiations. They are strong at thinking out of the box and have outstanding cross border capabilities. We also love their diverse teams.

The highest standard in legal expertise combined with the availability and dedication towards the customer make the practice unique. The teams strength is the quality of each team member in combination with partner who is always perfectly available and fully aware of every step of the way. Strong at providing very diverse teams, able to think out of the box.

Very dedicated, great business judgement and very pragmatic advice!

Elisabeth Stichmann and her team deliver high quality advice always in due time. Information is always brought to the point, no unnecessary fuzz around it.

Maria Doralt stands out for her unrivalled commitment and impressive negotiation skills. She is a great communicator and makes complex issues easy to grasp. She is also great at building relationships with all parties and ensuring smooth negotiations, very tough in substance but very smooth in her manner of negotiating deals. That helps her to build confidence with all parties and to find win win solutions. She is certainly one of the best corporate lawyers I have ever met.

Maria Doralt – outstanding, both academic and practical excellence, very much engaged, good availability!

‘Kerstin Schnabl – one of the leading experts in  Germany AG Law,  very responsive and reliable!’

Key clients

1 & 1 Internet SE

exceet Group SE

Wise Road Capital

General Electric


Ardagh Group

Abry Partners II LLP

Zoetis Inc

Danaher Corporation

HBB-Haas Beratung und Beteiligungen GmbH


H.M.Z. Group


Employment Tier 4

DLA Piper Weiss-Tessbach's practice counts international corporations among its clients, many based in the technology sector. A small team advises employers on employment issues during market entries, terminations and mass redundancies, and court disputes against former employees. Practice head Mag Stephan Nitzl has 'years of experience' and is 'very efficient and effective'.

Practice head(s):


‘Professional work, above all remarkable knowledge in legal topics full of complexity. High specialisation on customer-specific tasks and questions and none of them remain unanswered. Outstanding support and engagement.’

‘Rich experience of local employment case practice, good understanding of the common needs of the employer and skilful on conducting negotiation with the opposite. Very familiar with Austria law, policy and regulations regarding employment. Stephan Nitzl has years of experience in employment issues and is always able to contribute his valuable ideas when cases go difficult. He can fine-tune his strategy and mode base on the client’s needs and most of the time he is very efficient and effective to get the case moving forward and eventually get resolved.’

Key clients

BASF Österreich GmbH

Uber B.V.

REHAU Gesellschaft m.b.H

SodaStream Industries, Ltd.

Wizz Air Hungary Kft.

EasyPark AB

Voi Technology AB

Assicurazioni Generali S.p.A

Lime Network B.V

NetApp, Inc.

Cisco Systems, Inc.

Zscaler, Inc.

Dialog Semiconductor GmbH

METRO Cash & Carry Oesterreich GmbH

AT&T Global Network Services Nederland B.V.

Scientific Games Corp.

Job Rocker International GmbH

Real estate Tier 5

DLA Piper Weiss-Tessbach is particularly active in advising on financing, regularly acting for real estate investors. Practice head Oskar Winkler advised Partners Group/Greystar, a US company specialising in multi-family houses and dormitories, on the purchase of the DC 3 Tower, located in the Vienna Donau City, in a deal worth €100m.

Practice head(s):

Key clients

Partners Group / Greystar

UniCredit Bank Austria

6B47 Real Estate Investors AG

Global Co-Chairs: Roger Meltzer and Andrew Darwin
Co-Chief Executive Officers: Simon Levine and Cameron Jay Rains
Number of partners: 1,500
Number of lawyers: 5,000
Languages: The firm speaks over 60 languages
Offices: Lawyers located in more than 60 countries throughout the Americas, Europe, the Middle East, Africa and Asia Pacific.

Please see for further information about the firm.


At DLA Piper we are firmly committed to diversity and inclusion. For us, diversity isn’t just about visible differences, it’s the unique blend of talents, skills, experiences and perspectives that makes each of us an individual and we know it’s crucial to have a culture and environment where those differences are genuinely valued. As a global business law firm, with a diverse client base, we know that our clients expect our people to represent the communities in which we work and value our ability to advise them on both local and global cultures and markets. We believe that our approach to diversity and inclusion enables us to attract the best talent, build the most effective teams and deliver the highest level of client service.

For more information on our specific D&I initiatives please see