Stephan Keller

citizen of Birwinken, Zürich

Commercial register

A. Keller-Immobilien AG

Member of the board of directors · sole signature · Birwinken

since Mar 3, 2026
Schweizerisches Sozialarchiv

Member of the committee · no signing authority · Zürich

since Dec 13, 2013
Rotpunktverlag AG

Member of the board of directors · joint signature by two · Zürich

Kulturfonds der ProLitteris

Member of the foundation board · joint signature by two · Zürich

until Dec 21, 2023