| Name | Region |
|---|---|
| CombiGene AB | |
| Combinum | Västra Götaland |
| CombiQ AB | |
| CombiQ AB | |
| Combitech | |
| Comlog | Stockholm |
| Commended.ai | |
| Communica | Stockholm |
| Communique AB | Norrbotten |
| Compare-IT | |
| Compliq IT AB | Skåne |
| Compular AB | |
| ComputerGarden AB | Stockholm |
| ComputerSweden | Stockholm |
| Comsys AB | |
| Comtax AB | Skåne |
| Consafe Logistics AB | Skåne |
| Consenz | |
| Consid | |
| Consupedia | |
| Contenta RAW Converter | Västerbotten |
| ContextVision AB | Stockholm |
| Cooach AB | |
| Corelatus AB | Stockholm |
| Corline Biomedical AB | |
| Corline Biomedical AB | |
| Corona Software AB | Stockholm |
| Corpia | |
| CorPower Ocean | |
| Corsmed | |
| COS Systems AB | |
| Countagen AB | |
| Coupon Carrier AB | |
| Covr Security AB | |
| Creandum | Stockholm |
| Creative Brackets | |
| CredPoint Sweden AB | |
| Creed Media Group AB | |
| Cresponix | |
| Crisp | |
| CRM Treasury Systems | |
| Crobasoft Interactive | Stockholm |
| Crobasoft Interactive | |
| Crossbreed | |
| Crosser Technologies | |
| Crossnet AB | Stockholm |
| CRUX | Stockholm |
| Cryptolens AB | |
| Crystone AB | Västmanland |
| Curest AB |