Hans-Jörg Birrer
Sole proprietorship · Ittigen
Commercial register
- CH-ID
- CH07310125178
- Legal form
- Sole proprietorship
- Registered seat
- Ittigen
- Address
- Sonnenrain 9, 3063 Ittigen, 3063 Ittigen
- Canton
- Bern
- Status
- Active
Purpose
Engineering-Consulting-Training.
Official register excerpt · Entry on Zefix
Source: Swiss commercial register (Zefix, SHAB) and the cantonal registry office. · checked Sep 26, 2026