Fabian M. Klein

Peter Junghänel is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Peter, who practices law in Frankfurt/Main, Germany, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter is held by other top lawyers in the same geographic and legal practice area.

Bernd Thalmann is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Bernd, who practices law in Frankfurt/Main, Germany, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bernd is held by other top lawyers in the same geographic and legal practice area.

Jens Blumenberg is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Governance and Compliance Practice and Tax Law. Jens, who practices law in Frankfurt/Main, Germany, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jens is held by other top lawyers in the same geographic and legal practice area.

Sebastian Bruchwitz is a top attorney recognized by Best Lawyers in the practice area(s) of Investment Funds. Sebastian, who practices law in Frankfurt/Main, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Sebastian is held by other top lawyers in the same geographic and legal practice area.

Bettina Komarnicki is a proven expert in the fields of IT law, software law, copyright law, competition and trademark law, licensing and distribution law, and data protection law. She assists clients in drafting and negotiating complex contracts and introducing new business models, and represents them in and out of court. Her clients include leading international IT service providers, the public sector, small and medium-sized companies and start-ups.

Florian Wiesner, lawyer and notary, is managing partner of the firm. He advises project development and real estate fund companies on implementing and completing construction projects, including drafting, negotiating, and concluding construction and architect contracts, as well as warranty management. He supports clients during construction and represents them in asserting and defending construction law claims in court. Wiesner also advises on commercial leases and real estate transactions. H...

Dr. Sebastian Jungermann is a partner in ARNECKE SIBETH DABELSTEIN's Frankfurt office. Sebastian advises clients regarding German and European competition and antitrust laws, including German, EU and multi-jurisdictional merger control proceedings, cartel proceedings, abuse-of-dominance proceedings, litigation, compliance programs, as well as internal audits and contractual advice. Sebastian represents his clients before courts, the German Federal Cartel Office, the European Commission as wel...

Aline Fritz’s mandates include public procurement law as well as European state aid law and subsidy law. She advises the public sector and subsidy recipients on the implementation of procurement procedures, as well as bidders in all phases of the procedure. Fritz has extensive experience in representing clients before various public procurement chambers and public procurement tribunals in the higher regional courts. She regularly holds lectures and training courses on public procurement...

Thilo Zimmermann is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Thilo, who practices law in Frankfurt/Main, Germany, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thilo is held by other top lawyers in the same geographic and legal practice area.

Ingo Winterstein is a top attorney recognized by Best Lawyers in the practice area(s) of Construction Law and Real Estate Law. Ingo, who practices law in Frankfurt/Main, Germany, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ingo is held by other top lawyers in the same geographic and legal practice area.