The open data platform for customer information on Swiss public transport is operated on behalf of the Swiss Federal Office of Transport (FOT):
SBB AG
Systemaufgaben Kundeninformation (SBB Infrastruktur)
Wylerstrasse 123/125
3000 Bern 65
Contact: opendata@sbb.ch or form
The source code of the platform is open source: Gitlab (except for the WordPress Typ Plugin).