| Clampland AB | Vikingstad | 0 tkr |
| Claudia Gullström AB | Linköping | 0 tkr |
| Clauditius AB | Norrköping | 0 tkr |
| CLDF Tinacci Holding AB | Linköping | 0 tkr |
| Cleanavia AB | Linköping | 0 tkr |
| Clexie AB | Linköping | 0 tkr |
| ClimaBed AB | Linköping | 0 tkr |
| CloudBackend AB | Linköping | 0 tkr |
| Cloud JS AB | Linköping | 0 tkr |
| Cloudy Skies AB | Linköping | 0 tkr |
| C Lundén AB | Linghem | 0 tkr |
| CN Avefeldt AB | Linköping | 0 tkr |
| Cocktails and dreams Hotel AB | Linköping | 0 tkr |
| Code by Charlie AB | Vikingstad | 0 tkr |
| Cognible AI Sweden AB | Linköping | 0 tkr |
| Cognise AB | Linköping | 0 tkr |
| COINiD AB | Linköping | 0 tkr |
| Coldman Invest AB | Linköping | 0 tkr |
| Com 4 solutions Aktiebolag | Linköping | 0 tkr |
| Comlab AB | Linköping | 0 tkr |
| Comnisens AB | Linköping | 0 tkr |
| com-onweb International AB | Linköping | 0 tkr |
| Complete Produktion Linköping AB | Linköping | 0 tkr |
| Computer 'n' Ranch i Linköping Aktiebolag | Bestorp | 0 tkr |
| Conducta AB | Linköping | 0 tkr |
| Construction of M AB | Linköping | 0 tkr |
| Cordicity AB | Linköping | 0 tkr |
| Corrigere Invest AB | Linköping | 0 tkr |
| Cosmic Frontier AB | Linköping | 0 tkr |
| Cost Solutions Sweden AB | Linköping | 0 tkr |
| Couloir Poubelle Lindevall AB | Linköping | 0 tkr |
| CREADI AB | Linköping | 0 tkr |
| Createwa AB | Linköping | 0 tkr |
| CREAUTZ SWEDEN AB | Linköping | 0 tkr |
| Crescere AB | Tumba | 0 tkr |
| C Samuelsson Förvaltning AB | Linköping | 0 tkr |
| C Thorell Konsult AB | Sturefors | 0 tkr |
| CT HR Partner AB | Linköping | 0 tkr |
| CTR Invest AB | Linköping | 0 tkr |
| Cubler AB | Halmstad | 0 tkr |
| Curenc AB | Linköping | 0 tkr |
| Cutting Corner Games AB | Linköping | 0 tkr |
| CVM Group AB | Linköping | 0 tkr |
| CVP Motala Holding AB | Linköping | 0 tkr |
| CVP Slaktaren Holding AB | Linköping | 0 tkr |
| Cwadrat fastigheter AB | Edsbruk | 0 tkr |
| Cygne Invest Sweden AB | Vreta Kloster | 0 tkr |
| Cykee AB | Linköping | 0 tkr |
| Cykel Center i Linköping AB | Linköping | 0 tkr |
| Däck-Service i Katrineholm Aktiebolag | Linköping | 0 tkr |