| CKMT AB | Karlstad | 0 tkr |
| Claes Malmqvist AB | Karlstad | 0 tkr |
| Clamp Holding AB | Kil | 0 tkr |
| CLAMP Invest AB | Kil | 0 tkr |
| ClaraMel AB | Kristinehamn | 0 tkr |
| ClarWast AB | Edane | 0 tkr |
| Classic Auto Part i Wermland AB | Karlstad | 0 tkr |
| Classons Skogsvård Holding AB | Mangskog | 0 tkr |
| Claussen Fastigheter AB | Torsby | 0 tkr |
| Clea Holding AB | Borgvik | 0 tkr |
| Clean Industrial Solutions Power-to-X AB | Hammarö | 0 tkr |
| Clean Skin Karlstad AB | Huddinge | 0 tkr |
| Clear the Runway Holding AB | Arvika | 0 tkr |
| Climate Arena Holding AB | Sunne | 0 tkr |
| Climate Arena Sweden AB | Sunne | 0 tkr |
| Climbro Konsult i Kristinehamn AB | Kristinehamn | 0 tkr |
| CL Medical AB | Skoghall | 0 tkr |
| Cloudberry Utveckling AB | Karlstad | 0 tkr |
| Cloudberry Utveckling II AB | Karlstad | 0 tkr |
| Cloudberry Utveckling III AB | Karlstad | 0 tkr |
| Cloudberry Wind AB | Karlstad | 0 tkr |
| Cloz Management AB | Karlstad | 0 tkr |
| CLP Properties Sunne AB | 2332 Åsvang | 0 tkr |
| CLW Industrikonsult AB | Kristinehamn | 0 tkr |
| CMB Invest AB | Karlstad | 0 tkr |
| CMBP Förvaltning AB | Karlstad | 0 tkr |
| CMB Trading AB | Skoghall | 0 tkr |
| C M Hallberg Aktiebolag | Torsby | 0 tkr |
| CMKM Holding AB | Karlstad | 0 tkr |
| C.M. Mek & Svets AB | Storfors | 0 tkr |
| CMRA Consulting AB | Karlstad | 0 tkr |
| cm-suspension AB | Lund | 0 tkr |
| CN Fastighetsförvaltning AB | Säffle | 0 tkr |
| CNW Holding AB | Karlstad | 0 tkr |
| CodifyIT i Norden AB | Karlstad | 0 tkr |
| Colom Invest AB | Karlstad | 0 tkr |
| Colonus Invest AB | Arvika | 0 tkr |
| Comitab AB | Karlstad | 0 tkr |
| Comptech Sweden AB | Karlstad | 0 tkr |
| ComxSentio AB | Karlstad | 0 tkr |
| Condito AB | Karlstad | 0 tkr |
| Conductor i Sunne AB | Sunne | 0 tkr |
| Connexo AB | Kil | 0 tkr |
| Consensio Stables AB | Karlstad | 0 tkr |
| Consto Öst AB | Sollentuna | 0 tkr |
| Consultic AB | Hammarö | 0 tkr |
| Contango Resources Holding AB | Karlstad | 0 tkr |
| Contare Holding AB | Töcksfors | 0 tkr |
| Contrec Control Aktiebolag | Kristinehamn | 0 tkr |
| Contribi AB | Adress Saknas | 0 tkr |