ABT Treuhandgesellschaft AG has been serving our customers since 1980. Only thanks to our customers have we been able to grow and expand continuously since 1980. Follow our company history from its beginnings.

The decisive milestones of ABT:

  • 03.2014 Foundation ABACOR Revisions AG, Cham
  • 01.2014 Establishment of new accounting division
  • 09.2013 Integration of the Audit and Accounting division in ABT Adliswil
  • 11.1993 Foundation of ABT Hungária Tanácsadó Kft.
  • 10.1987 Opening of branch office, Cham
  • 10.1983 Foundation of ABACOR auditing company, Zurich
  • 08.1980 Foundation