Institut der Wirtschaftsprüfer

Institute der Wirtschaftsprüfer in Deutschland e.V. is a privately run organization based in Düsseldorf established to serve its members who comprise both individual Wirtschaftsprüfers and Wirtschaftsprüfungsgesellschaften. The IDW was established on a voluntary basis rather than having been established under German law. In accordance with its Articles of Incorporation, the IDW does not operate as a commercial business and is a not-for-profit organization. Membership as of 31 December 2024 was 12,909 full members, of whom 11,782 were German public auditors and 1,127 were German public audit firms.