# Silvia Signer

> 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/silvia-signer/3133867

## Registry facts

- Residence: Zürich
- Nationality: CH
- Status: active

## Mandates (3)

- Gräub Office AG (CHE-109.051.955) — joint signing authority (any two to sign)
- Elmar Birgelen Zollikon, Treuhandbüro (CHE-106.515.102) — limited signing authority (individual) (company no longer active)
- Birgelen & Kaufmann Treuhand AG (CHE-106.983.012) — limited signing authority (individual)

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Machine-readable variant of https://graph.swiss/people/silvia-signer/3133867: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt