Michel de Guillenchmidt has been a member of the French Conseil d’Etat during more than 20 years after graduating from Paris Institute of Political Sciences and the National School of Administration (ENA). The Conseil d’État advises the Government on the preparation of bills, ordinances and certain decrees. It also answers the Government’s queries on legal affairs and conducts studies upon the request of the Government or through its own initiative regarding administrative or public policy issues. In addition, the Conseil d’État is the highest administrative jurisdiction in France.

After having worked for several leading law firms, he founded DGA in 2009. He became an honorary attorney in 2022.