
- Profile
Testimonials
Collated independently by Legal 500 research team.
‘Very commercial, fast, and pragmatic.’
‘In addition to its outstanding, comprehensive professional expertise in practically all areas of law, the firm is characterized in particular by its legal prudence and high level of client orientation. They provide legal support at the highest level. ’
‘One of the largest and most well-known corporate M&A teams in Austria."
‘Thomas Trettnak - reliable and experienced M&A partner with a strong cross-border practice.'
‘Albert Birkner is an excellent lawyer and advisor with great legal knowledge and a good negotiator. ’
‘Cerha Hempel has a market leading-practice. They combine expert knowledge, expertise, and the ability to find workable solutions. From Albert to the youngest associate, they stand and speak as one. This makes dealing with them so easy and such a great experience.’
‘Albert Birkner is technically one of the best, if not the best, and uses all his abilities to find the best solutions for each case.'
'The lawyers are easily accessible at all times and have extensive professional expertise. We can name Clemens Hasenauer as an outstanding example.
Key clients
- OMV AG
- RHI Magnesita
- IFF International Flavors & Fragrences
- XXXLutz Group
- Saubermacher Dienstleitungs AG (“Sauberbacher”)
- Agri Europe Cyprus Limited
- OMNES Capital Group
- Moodys Cooperation
- Teufelberger Group
- Motion Pictures Licensing Company International Limited
Work highlights
- Advised global energy and chemicals group OMV on connection with the acquisition by ADNOC of Mubadala's interest in OMV.
- Advised RHI Magnesita on the voluntary partial cash offer for 29.9% of the issued and outstanding share capital of RHI Magnesita by the Rhône Group.
- Advisesd Agri Europe Cyprus Limited on the intended acquisition of shares in the listed Addiko Bank AG, conveying up to 29.99% voting rights by way of private purchase and by launching a voluntary public partial tender offer.
Lawyers
Hall of fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Clemens Hasenauer; Albert Birkner; Johannes Aehrenthal
Other key lawyers
Wolfgang Sindelar; Nadine Leitner; Thomas Trettnak