Jan Räker

Lawyer Senior Associate

Lawyer, Accredited Lawyer in Administration LawPartner

Lawyer Partner

Born in Lüneburg in 1967, Anja Teiwes studied law in Göttingen and has worked as a lawyer since 1996. She joined ZENK in 1999. Her clients consist primarily of planning offices, architects, engineers and structural engineers. Her practice focuses on all areas of architectural and engineering law, in particular on contract and fee matters. The awarding of planning services is another focus of her work, and she contributed her expertise to the “Guidelines on Procedures under the...

Jan Erik Spangenberg specialises in dispute resolution, litigation and arbitration. He acts both as counsel and as arbitrator. He assists companies, governments and individuals in navigating complex disputes, in particular international commercial and investment arbitrations. He also advises governments and investors in relation to foreign investments and public international law. Jan Erik Spangenberg has successfully represented clients in many high stakes arbitrations (including ICC, DIS, S...

Harald Ick is a top attorney recognized by Best Lawyers in the practice area(s) of Mergers and Acquisitions Law. Harald, who practices law in Hamburg, Germany, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Harald is held by other top lawyers in the same geographic and legal practice area.

Born in Hamburg in 1962, Birgitta Weihrich studied law in Hamburg. After completing her legal clerkship – including a post at the Directorate-General for Competition of the European Commission in Brussels and Speyer – she was admitted to the bar in 1992. After spending a number of years in a commercial law firm in Northern Germany and as a legal advisor and authorized signatory of an insurance company, she joined ZENK in 2018. She has many years’ experience in both a wide ra...

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

France—its culture, language and way of life—has fascinated Dr Frank Hagemann since his youth. It was therefore a fortunate coincidence when the Hamburg-based law firm Seelig, that later merged with FPS, was seeking support in trade mark law for the French market at just the right time, allowing him to combine his professional and personal interests. While his international work is wide-ranging, Dr Hagemann has always placed particular emphasis on maintaining and expanding his Fre...

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