Swisscom Trust Services is a service provided by Swisscom IT Services Finance S.E. and Swisscom (Switzerland) Ltd.
The remote signature service of Swisscom offers trustworthy and compliant signatures in accordance with ETSI standards and the eIDAS regulation within the EU. It offers in Switzerland a trustworthy and compliant signatures in accordance with the ZertES signature law. Swisscom IT Services Finance S.E in Vienna is a subsidiary company of Swisscom (Schweiz) AG. It offers this service through the parent company in Switzerland and consequently covers the entire legal jurisdiction of Switzerland, the EU and the EEA. The signature services use the MobileID and MobileID Authenticator as authentication means. The identification is done via the RA Service.
You will find additional information here.
Swisscom IT Services Finance S.E.
Swisscom Trust Services
Mariahilfer Strasse 123/3
Company registration number: FN 378965 b
Company Register Court: Commercial Court Vienna
Tel.: +43 720 82 89 89