Founded in 1952, Siegenthaler Revision AG is an independent consulting and auditing company based in Langenthal, Switzerland. The firm positions itself as a long-term, reliable partner for SMEs, the public sector, non-profit organizations, and private individuals, primarily in the Emmental-Oberaargau region. Their core services include auditing, comprehensive tax consulting, business advisory (including company valuations, restructuring, and succession planning), and fiduciary services like accounting and payroll management. They emphasize personal client relationships, continuity, and delivering high-quality, pragmatic solutions.

Founded in

Switzerland