Institut der Wirtschaftsprüfer in Deutschland

Institute of Public Auditors in Germany e. V.
Institut der Wirtschaftsprüfer in Deutschland e. V.
AbbreviationIDW
PredecessorInstitut für das Revisions- und Treuhandwesen (IRT: 1930–1932)
Founded1932 (renaming of IRT)
FounderVerband deutscher Bücherrevisionen (VDB), Fachgruppe der Treuhänder im Verband Deutscher Diplom-Kaufleute (VDDK), Verband Deutscher Treuhand- und Revisionsgesellschaften e.V., and Reichsbund Deutscher Treuhand-Aktiengesellschaften (established predecessor IRT in 1930)
TypeProfessional association (voluntary membership), Not-for-profit
FocusAuditing, Accounting, Professional Regulation
HeadquartersRoßstraße 74, 40476 Düsseldorf
Location
  • Germany
Coordinates51°14′46″N 6°46′43″E / 51.2461°N 6.7785°E / 51.2461; 6.7785
ProductsIDW Verlautbarungen, Das WP Handbuch, WPg – Die Wirtschaftsprüfung (Journal), IDW Standards, MAIK (AI-powered digital tool)
Membership12,909 (2024)
Key people
Ingmar Rega (President), Melanie Sack (Chair of the Executive Board), Torsten Moser, Daniel P. Siegel (Executive Board members), Dr. Britta van den Eynden (CEO, Verlag), Dr. Henrik Solmecke (CEO, Akademie)
AffiliationsInternational Federation of Accountants (IFAC), Accountancy Europe, DRSC, BFB
Staff~130 employees (IDW e.V.), including 34 WP, StB, or Attorney qualifications
Websitewww.idw.de
RemarksSubsidiaries: IDW Verlag GmbH and IDW Akademie GmbH. Organised into 12 regional state groups (Landesgruppen) supported by 7 regional offices. Combined Total Assets (2023) for subsidiaries: IDW Verlag (€8.17M) + IDW Akademie (€3.77M) = €11.94M.

Institute der Wirtschaftsprüfer in Deutschland e.V. (Institute of Public Auditors in Germany, Incorporated Association - IDW) is a privately run organization based in Düsseldorf established to serve its members who comprise both individual Wirtschaftsprüfers (German Public Auditors) and Wirtschaftsprüfungsgesellschaften (German Public Audit firms) (Bylaws §1, §3). 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 (Bylaws §2 Sec. 5). Membership as of 31 December 2024 was 12,909 full members, of whom 11,782 were German public auditors (91% of all German public auditors) and 1,127 were German public audit firms (Bylaws §4 Sec. 4).