SENN AG is a leading family-owned company with almost 70 years of experience in the fields of steel construction, metal construction, sheet metal and stainless-steel center, emergency power systems, and crane & transport. At the company headquarters in Oftringen, strong performances are achieved to the advantage of our customers through the use of state-of-the-art production facilities. Innovation and a sense of responsibility towards business partners and employees characterize the corporate culture of our family business, which is currently led by the second generation.

BT Brigger Treuhand GmbH provides comprehensive fiduciary services including bookkeeping, accounting optimization, business consulting, limited audits, payroll accounting, VAT returns, and tax advice. Led by certified audit expert Nicolas Brigger with over 25 years of experience in national and international mandates.