Said W. Ashrafnia

Dr. Ulrich Ziegler is a certified lawyer focusing on labour law with more than 25 years of experience in the field. He provides advice to both German and foreign companies in individual as well as collective labour law issues and in labour law disputes with employees and employee representatives. Dr. Ziegler has significant experience with the employment-related aspects of M&A and cross-border transactions, and restructuring measures, such as site closures and plant relocations, including...

Kolja Stehl is a lawyer recognized by Best Lawyers in the practice area of Banking and Finance Law. Kolja practices law in Frankfurt/Main, Germany Best Lawyers has recognized Kolja Stehl since 2023. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kolja Stehl is held by other lawyers.

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.

Prof. Dr. Jörg Kupjetz advises German and international banks, financial institutions, investors, and companies, with a focus on corporate and financing transactions—especially corporate finance, acquisition, project and real estate financing, structured financing, and venture debt. He holds a degree in banking administration and is also a solicitor (England and Wales), business mediator, certified compliance manager, and senator in the Senate of Economy.

Achim H. Döser is a lawyer recognized by Best Lawyers in the practice area of Banking and Finance Law. Achim H. practices law in Frankfurt/Main, Germany Best Lawyers has recognized Achim H. Döser since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Achim H. Döser is held by other lawyers.

Alexander Insam is a lawyer recognized by Best Lawyers in the practice areas of Employee Benefits Law and Labor and Employment Law. Alexander practices law in Frankfurt/Main, Germany Best Lawyers has recognized Alexander Insam since 2021. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Alexander Insam is held by other lawyers.

Rupert Bellinghausen is a lawyer recognized by Best Lawyers in the practice areas of Arbitration and Mediation, Bet-the-Company Litigation, International Arbitration, Litigation and Product Liability Litigation. Rupert practices law in Frankfurt/Main, Germany Best Lawyers has recognized Rupert Bellinghausen since 2009. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard...

Mark Oliver Kühn is specialised in offering legal advice on information technology and privacy law, industrial property rights as well as contract and commercial law. Mr Kühn advises and supports national and international companies in designing corporate processes to ensure legal certainty, in particular in the fields of software contract law and open source, IT outsourcing and project contracts, data privacy and protection, e-commerce and multimedia law, electronic payment systems...

Lawyer Partner

John Büttner advises on all aspects of national and international business tax law, including areas where it intersects with corporate and inheritance law. He has many years of experience in international tax law, criminal tax law, tax litigation, the taxation of restructurings, real estate taxation, and the taxation of capital investments. In addition, Mr Büttner advises private clients, families, and family businesses on ongoing tax matters, including asset structuring, (corporate...