Dr Thomas Trettnak > Cerha Hempel > Vienna, Austria > Lawyer Profile

Cerha Hempel

Work Department

Corporate & Commercial


Areas of practice:


Admitted 2005, (Attorney at Law), Austria
Admitted 2003, (Attorney at Law), New York

  • Guest lecturer in Mergers & Acquisitions at the Vienna University of Economics and Business
  • Secondment at STRABAG SE, Capital Markets & M&A, Compliance Officer (2007/2008)
  • Goldberg, Gelman & Harnik, New York (2002)
  • Cremades & Sánchez Pintado, Madrid (1999)

Thomas is Partner at CERHA HEMPEL since 2010 and with the law firm since 2004. He is Head of CEE Insolvency & Restructuring Practice, concentrating in mergers and acquisitions and corporate reorganizations with a special focus on insolvency & restructuring, as well as venture capital and private equity mandates. Thomas is particularly renowned for cross-border transactions, often for Anglo-Saxon clients in view of his admission to the New York Bar. ​ He has worked in-house in M&A for a listed construction company. Thomas is a guest lecturer in Mergers & Acquisitions at the Vienna University of Economics and Business.


German, English, French, Spanish, Basic knowledge of Russian


  • Vienna Bar Association
  • International Bar Association
  • AVCO – Austrian Private Equity and Venture Capital Organisation
  • New York Bar Association
  • American Bar Association
  • Lex Mundi – The World’s Leading Association of Independent Law Firms


Secondment at STRABAG SE, Capital Markets & M&A, Compliance Officer (2007/2008)
University of Graz (Mag. iur. 1999, Dr. iur. 2003)
Goldberg, Gelman & Harnik, New York (2002)
Kellogg School of Management, Master’s Degree in Business Administration (2001)
Cremades & Sánchez Pintado, Madrid (1999)
Northwestern University School of Law (LL.M. 2001)
Universidad de Alcalá, Madrid (1998-1999)

Lawyer Rankings

Austria > Insolvency and corporate recovery

(Leading individuals)

Thomas TrettnakCerha Hempel

With offices across the CEE region, Cerha Hempel is an attractive partner for cross-border insolvency, restructuring and reorganisation work including distressed M&A and related employment, tax and commercial issues. Alongside its multijurisdictional capabilities, clients also benefit from the team’s multidisciplinary approach combining expertise in insolvency law, corporate, finance and litigation. This skill set is mostly called upon by creditors such as national and foreign banks and other lenders, including business partners of insolvent or near insolvent companies, but its client portfolio also includes debtors. Thomas Trettnak heads the practice and covers a wide range of insolvency and pre-insolvency matters.

Austria > Commercial, corporate and M&A

Cerha Hempel ‘delivers the greatest value for money due to its vast industry knowledge and experience and ability to quickly transform business needs into legal arrangements‘. With a strong presence and know-how in the CEE region, the team is regularly involved in large-cap, cross-border M&A transactions. Other areas of expertise are public deals, corporate governance advice, and in the private equity and venture capital space. Albert Birkner‘s ‘understanding of his client’s business, the issues arising, and the particular challenges of the project is always second to none.’ He leads the practice together with takeover law specialist Clemens Hasenauer and Johannes Aehrenthal . Thomas Trettnak can also offer expertise in insolvency and restructuring. Nadine Leitner was recently promoted to the partnership and senior associate Martin Eichinger provides additional support.