| Cavetti AB | Sundsvall | 0 tkr |
| C-Bolaget AB | Husum | 0 tkr |
| C Bystedt Invest AB | Matfors | 0 tkr |
| C Cadkonsult AB | Sundsvall | 0 tkr |
| Cedarbranch AB | Sundsvall | 0 tkr |
| Cederwood AB | Sundsvall | 0 tkr |
| Centson AB | Örnsköldsvik | 0 tkr |
| CFX Holding AB | Domsjö | 0 tkr |
| Charles Derek Martin Holding AB | Kovland | 0 tkr |
| Charmstone Nordic AB | Härnösand | 0 tkr |
| Chax Holding AB | Sundsvall | 0 tkr |
| CHBL Holding AB | Timrå | 0 tkr |
| CHJ Holding AB | Sundsvall | 0 tkr |
| Choko i Sundsvall AB | Obbola | 0 tkr |
| Christer Näslund AB | Sollefteå | 0 tkr |
| Christian Norberg Invest AB | Husum | 0 tkr |
| Christoffer Wallin AB | Härnösand | 0 tkr |
| Christopher Guldstrand AB | Sundsvall | 0 tkr |
| CH Service AB | Edsele | 0 tkr |
| Cinis Fertilizer AB | Lund | 0 tkr |
| Citybostäder i Sundsvall AB | Alnö | 0 tkr |
| CJE Holding AB | Sundsvall | 0 tkr |
| Clarisma AB | Timrå | 0 tkr |
| Classic Lodging Matfors AB | Indal | 0 tkr |
| Clavister Technologies AB | Örnsköldsvik | 0 tkr |
| ClAx AB | Sollefteå | 0 tkr |
| Clearsoft AB | Sörberge | 0 tkr |
| Clock Sverige AB | Härnösand | 0 tkr |
| Cloudberry Labs AB | Sundsvall | 0 tkr |
| Cloudwalk AB | Härnösand | 0 tkr |
| C Mikaelsson Holding AB | Sundsvall | 0 tkr |
| CMS Creative Mind Solutions Aktiebolag | Härnösand | 0 tkr |
| CM Trading i Övik AB | Bjästa | 0 tkr |
| CMU Holding AB | Gideå | 0 tkr |
| CNyborg AB | Kovland | 0 tkr |
| c/o Berg AB | Sundsvall | 0 tkr |
| Codebase Holding AB | Docksta | 0 tkr |
| Cognivex Infra 1 AB | Visby | 0 tkr |
| COMMENTARIUS REX AB | Moliden | 0 tkr |
| Composite Technologies Sweden AB | Söråker | 0 tkr |
| Concretium AB | Sundsvall | 0 tkr |
| Conecti AB | Härnösand | 0 tkr |
| Connoveaux Holding AB | Sundsvall | 0 tkr |
| consize AB | Arnäsvall | 0 tkr |
| Consolidator Invest AB | Stockholm | 0 tkr |
| Contactum i Umeå Aktiebolag | Sundsvall | 0 tkr |
| Contrado Företagsutveckling AB | Sundsvall | 0 tkr |
| Contrado Fusion AB | Sundsvall | 0 tkr |
| Contrado Konsult AB | Sundsvall | 0 tkr |
| Contrado Strategi AB | Sundsvall | 0 tkr |