In addition to public law and regulatory advice on large infrastructure projects, Hengeler Mueller is primarily known for its constitutional expertise and regularly acts in related proceedings at EU and federal levels. The practice's broad portfolio includes proceedings concerning the funding regulations for biomethane, the Berlin rent cap and various financial and investment protection issues. Constitutional and administrative lawyer Wolfgang Spoerr is a sought-after contact for litigation, while Jan Bonhage advises on state aid and public procurement aspects of large infrastructure projects and Dirk Uwer stands out for his advice to various clients in the health and energy sectors on modernisation and privatisation initiatives; the latter is also known as a gambling law expert. Counsel Frederic Geber (AI in the financial sector, autonomous driving) joined POSSER SPIETH WOLFERS & PARTNERS in February 2023.