# Christian Portmann

> 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/christian-portmann/3431200

## Registry facts

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

## Mandates (8)

- Melchior und Katharina KAMM-MENZI STIFTUNG (CHE-269.107.169) — chairperson of the foundation board — individual signing authority
- Bodenschutzstiftung Stadt Zürich (CHE-114.316.444) — chairperson of the foundation board — joint signing authority (any two to sign)
- Baugenossenschaft Oberstrass (CHE-101.250.008) — chairperson of the board — joint signing authority (any two to sign)
- Jugendwohnnetz Juwo (CHE-107.491.705) — general manager — joint signing authority (together w/ the chairperson or vice-chairperson of the board)
- wohnbaugenossenschaften schweiz regionalverband zürich (CHE-108.577.605) — member of the board — joint signing authority (any two to sign)
- Baugenossenschaft SILU (CHE-104.070.862) — general manager — joint signing authority (any two to sign)
- CONPORT AG (CHE-169.312.266) — member of the board — individual signing authority
- Anna und Paul Bucher-Gossweiler-Stiftung (CHE-114.471.688) — member of the foundation board — joint signing authority (any two to sign)

---

Machine-readable variant of https://graph.swiss/people/christian-portmann/3431200: registry facts only.
Site overview for agents: https://graph.swiss/llms.txt