Hedger Roisenwasser

Friederike Engelmann-Matz is a top attorney recognized by Best Lawyers in the practice area(s) of Restructuring and Insolvency Law. Friederike, who practices law in Berlin, Germany, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Friederike is held by other top lawyers in the same geographic and legal practice area.

Oliver Markmann is as a Shareholder within the German Private Equity/M&A team, where he focuses on representing a diverse range of private equity and growth equity clients in various private M&A transactions. His work spans buyouts, minority investments, co-investments, equity rollovers, and joint venture structuring, primarily concentrating on the technology, business services, and healthcare & life sciences sectors. Besides his professional commitments, Oliver values the opportu...

Andreas Grünwald is a top attorney recognized by Best Lawyers in the practice area(s) of Competition / Antitrust Law, Entertainment Law, Media Law, Regulatory Practice, Technology Law and Telecommunications Law. Andreas, who practices law in Berlin, Germany, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andreas is held by other top lawyers in the same geographic and legal practice area.

Lawyer Partner

Lawyer and Notary Partner

Roland Steinmeyer is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law and Mergers and Acquisitions Law. Roland, who practices law in Berlin, Germany, has been recognized since 2009. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Roland is held by other top lawyers in the same geographic and legal practice area.

Christoph v. Arnim advises on corporate, financing, and insolvency law, with additional expertise in the real estate, commercial, and financial sectors. He supports clients in complex transactions, restructurings, and reorganisations as part of an experienced legal team. With many years of advisory work and supervisory board experience in both private and public companies and cooperatives, v. Arnim is highly experienced in conducting shareholders' meetings and advising decision-makers. He spe...

Born in Dortmund in 1975, Dr. Anu Elina Birkefeld studied law from 1994-1999 at the University of Bielefeld and the Ruhr-University Bochum. She completed her legal clerkship at the District Court of Dortmund between 1999 and 2001 and has been working as a lawyer ever since. Dr. Birkefeld has been with ZENK since 2003. Furthermore she obtained her doctorate in employment and sports law at the University of Bielefeld in 2004, with a thesis on “The Employment Relationship of the Football C...

Guido Brucker is Partner at BEITEN BURKHARDT's Berlin office and member of the Corporate / M&A practice group. He advises national and international clients on all issues under energy and regulatory law, energy trade law and renewable energy law. He assists clients with regulatory administrative proceedings and is an experienced litigator.

Christoph Enaux chairs the German Telecommunications Sector Group as well as the German Regulatory and Competition Practice Group. Christoph advises on commercial and regulatory aspects of new business models in the TMT sector. In addition, he supports clients from various sectors on merger control, antitrust proceedings, foreign investment and export control law. His wide-ranging experience covers M&A and commercial contracts as well as administrative proceedings and regulatory and comme...