# Siobhan O'Brien

> 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/siobhan-o-brien/1284654

## Registry facts

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

## Mandates (2)

- Heeg Treuhand GmbH (CHE-255.420.312) — joint signing authority (any two to sign)
- Dr. Nabholz Treuhand AG (CHE-107.903.814) — joint signing authority (any two to sign)

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Machine-readable variant of https://graph.swiss/people/siobhan-o-brien/1284654: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt