| Cissimix AB | Umeå | 0 tkr |
| Citycore Sweden AB | Umeå | 0 tkr |
| City-Fastigheter i Umeå Invest AB | Umeå | 0 tkr |
| Citykiosken i Umeå AB | Umeå | 0 tkr |
| Cityplåt i Umeå AB | Täfteå | 0 tkr |
| CJNA AB | Röbäck | 0 tkr |
| C Jonsson Kapitalförvaltning AB | Umeå | 0 tkr |
| CKTS AB | Röbäck | 0 tkr |
| CK UMEÅ AB | Rundvik | 0 tkr |
| Clader AB | Skellefteå | 0 tkr |
| Claes Fana Invest AB | Skellefteå | 0 tkr |
| Clarholt Consulting AB | Bromma | 0 tkr |
| Claro Holding AB | Skellefteå | 0 tkr |
| Clevergirl AB | Skellefteå | 0 tkr |
| C Light of Life AB | Umeå | 0 tkr |
| Climatview Intressenter AB | Stockholm | 0 tkr |
| Cloudberry North AB | Umeå | 0 tkr |
| CLT Holding Sweden AB | Umeå | 0 tkr |
| C&M Investment AB | Sävar | 0 tkr |
| C&M Konsult AB | Marsfjäll | 0 tkr |
| CMS Group Scandinavia AB | Malå | 0 tkr |
| CN Holding i Lycksele AB | Lycksele | 0 tkr |
| Cold Logic AB | Umeå | 0 tkr |
| Collack Styling AB | Umeå | 0 tkr |
| Colorido AB | Dals Långed | 0 tkr |
| COMITOR Aktiebolag | Lycksele | 0 tkr |
| Compfort AB | Djursholm | 0 tkr |
| Compia Holding AB | Storuman | 0 tkr |
| CONBASE AB | Bureå | 0 tkr |
| Consis förlag & utbildning AB | Umeå | 0 tkr |
| Consultec Group Aktiebolag | Skellefteå | 0 tkr |
| Contractor Fastigheter i Norr AB | Skellefteå | 0 tkr |
| Coombsbay Holding AB | Umeå | 0 tkr |
| CopperRoad Invest AB | Lycksele | 0 tkr |
| Co-Pro KW AB | Umeå | 0 tkr |
| Corderec AB | Täfteå | 0 tkr |
| Corner Taken Quickly AB | Skellefteå | 0 tkr |
| Coronella AB | Kåge | 0 tkr |
| Coronella Forest AB | Stockholm | 0 tkr |
| Coronella International AB | Kåge | 0 tkr |
| CottColl Holding AB | Umeå | 0 tkr |
| C.O.W. Trading AB | Umeå | 0 tkr |
| C.o.w. Wallin Förvaltning AB | Umeå | 0 tkr |
| Coxco AB | Obbola | 0 tkr |
| Coxco Holding AB | Obbola | 0 tkr |
| Craftverk Press AB | Örträsk | 0 tkr |
| C Raiting AB | Umeå | 0 tkr |
| Crash Damage Reduction in Sweden AB | Umeå | 0 tkr |
| Cre8or Holding i Umeå AB | Umeå | 0 tkr |
| Crisana Invest AB | Umeå | 0 tkr |