# Mario Hammel

> 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/mario-hammel/2942073

## Registry facts

- Residence: Steffisburg
- Nationality: CH
- Status: active

## Mandates (5)

- Hammel Mario Oelfeuerungen/Oelbrennerservice amtl. Feuerungskontrolleur (CHE-114.625.810) — owner — individual signing authority
- youGroup Partners AG (CHE-357.921.376) — member of the board — joint signing authority (any two to sign)
- youGroup AG (CHE-288.273.845) — member of the board — joint signing authority (any two to sign)
- youEngineering AG (CHE-135.282.408) — limited joint signing authority (any two to sign)
- Avolo AG (CHE-402.374.643) — joint signing authority (any two to sign)

---

Machine-readable variant of https://graph.swiss/people/mario-hammel/2942073: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt