| CEAP Electronics GmbH | Kriegstetten | 20.9.2025 |
| CedaMed GmbH | Dornach | 20.9.2025 |
| Cedre AG | Schönenwerd | 20.9.2025 |
| ceed AG | Solothurn | 20.9.2025 |
| Celebi GmbH | Egerkingen | 20.9.2025 |
| Cellere Bau AG | Olten | 20.9.2025 |
| CELtronik GmbH | Egerkingen | 20.9.2025 |
| Cembramo Advisors GmbH | Himmelried | 20.9.2025 |
| Cent Systems AG | Lohn-Ammannsegg | 20.9.2025 |
| Centaurium Aviation Ltd. | Grenchen | 20.9.2025 |
| Centaurium UAS AG | Grenchen | 20.9.2025 |
| Centaurium Vintage Aviation AG | Grenchen | 20.9.2025 |
| Centigrados GmbH | Erlinsbach SO | 20.9.2025 |
| Centorbi + Scirè Malerei GmbH | Solothurn | 20.9.2025 |
| Centrachem GmbH | Härkingen | 20.9.2025 |
| Central Apotheke Olten AG | Olten | 20.9.2025 |
| Central Pizza Kebab, Kaya | Zuchwil | 20.9.2025 |
| Centralmarkt Shahbas | Grenchen | 20.9.2025 |
| Centranova AG | Härkingen | 20.9.2025 |
| Centris AG | Solothurn | 20.9.2025 |
| Centro Misionero Internacional CMI Olten | Olten | 20.9.2025 |
| Cepta GmbH in Liquidation | Oensingen | 20.9.2025 |
| Ceramo AG | Hägendorf | 20.9.2025 |
| Ceresio GmbH | Solothurn | 20.9.2025 |
| CERMINARA Gipsergeschäft GmbH in Liquidation | Trimbach | 20.9.2025 |
| CERTIFER Schweiz GmbH | Olten | 20.9.2025 |
| Certus Solutions GmbH | Feldbrunnen | 20.9.2025 |
| Cervi AG | Trimbach | 20.9.2025 |
| Cetrangolo GmbH | Bellach | 20.9.2025 |
| Cetres Holding AG | Bellach | 20.9.2025 |
| CEVA Logistics Services Switzerland GmbH | Delémont | 20.9.2025 |
| Cevi Olten-Stiftung | Olten | 20.9.2025 |
| Ceylon Food Herath Thuer | Olten | 20.9.2025 |