Christoph Sievers
Swiss Export Risk Insurance (SERI) (2006-2009)
Winterthur Versicherungen / RBS Insurance (2005)
Swiss Re (1980–2004)
Swiss Bank Corporation
Rhodia do Brasil (1978–1980)
Silvia Staub Sievers
Education authority of the canton of Zurich:
City of Adliswil (2009 – 2017)
Community of Horgen (1984 – 1986)
Swiss Re (1989 – 1995)
ICRC (1987 – 1989)
Lernstudio Zürich, Zurich (1983 – 1984)
Education authority of the canton of St. Gall:
City of St. Gall
Christoph Sievers
www.serv-ch.com
www.axa-winterthur.ch
www.swissre.com
www.ubs.com
Silvia Staub Sievers
www.vsa.zh.ch
www.schule-adliswil.ch
www.schule-horgen.ch
www.swissre.com
www.icrc.org
www.lernstudio.ch
www.schule.sg.ch
Link city of St.Gall