- CtrlM GmbH
- Herisauerstrasse 5
- Waldstatt
- AR
- CTS-Technology GmbH
- Alte Landstrasse 1073
- Wolfhalden
- AR
- CTRS (Consulting and Testing Regulatory Services) GmbH in Liquidation
- Kasernenstrasse 2
- Herisau
- AR
- CTS Consulting & Technology AG
- Bahnhofstrasse 21
- Herisau
- AR
- CT Praxis Herisau
- Spitalstrasse 6
- Herisau
- AR