# Stefan Birrer

> Swiss commercial-register person record from Swiss Graph (graph.swiss),
> sourced from the Swiss Official Gazette of Commerce (SHAB/SOGC).
> Canonical profile: https://graph.swiss/people/stefan-birrer/312204

## Registry facts

- Residence: Muttenz
- Nationality: CH
- Status: active

## Mandates (3)

- Hintermann & Weber AG (CHE-105.997.626) — member of the board — joint signing authority (any two to sign)
- SegAltura AG (CHE-414.494.099) — chairperson of the board + manager — joint signing authority (any two to sign)
- ABS Personalberatung AG (CHE-105.877.809) — Authorized signatory — limited signing authority (individual)

---

Machine-readable variant of https://graph.swiss/people/stefan-birrer/312204: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt