| Circular Biotech 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 |
| 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 |
| Cold Logic AB | Umeå | 0 tkr |
| Collack Styling AB | Umeå | 0 tkr |
| Colorido AB | Dals Långed | 0 tkr |
| Consis förlag & utbildning AB | Umeå | 0 tkr |
| Coombsbay Holding AB | Umeå | 0 tkr |
| Co-Pro KW AB | Umeå | 0 tkr |
| Corderec AB | Täfteå | 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 |
| 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 |
| CR Management AB | Obbola | 0 tkr |
| CurUM Holding AB | Umeå | 0 tkr |
| D.A. Boström Holding AB | Umeå | 0 tkr |
| Dahlbergs Holding i Umeå AB | Umeå | 0 tkr |
| Dahlbolagen i Umeå Aktiebolag | Umeå | 0 tkr |
| Daily Print i Umeå AB | Umeå | 0 tkr |
| DAJJ Fastigheter AB | Umeå | 0 tkr |
| DaJo Holding AB | Umeå | 0 tkr |
| Daniel Hedqvist Invest AB | Umeå | 0 tkr |
| Daniel Johansson Holding i Umeå AB | Hörnefors | 0 tkr |
| Daniel Oscarsson Holding AB | Obbola | 0 tkr |
| DANJOH Holding AB | Umeå | 0 tkr |
| Danny Lind i Uppsala AB | Umeå | 0 tkr |
| DartVoid AB | Umeå | 0 tkr |
| Databolaget MULTUM i Umeå Aktiebolag | Bygdeå | 0 tkr |
| Datacenter i Umeå Aktiebolag | Umeå | 0 tkr |
| DatAid Aktiebolag | Umeå | 0 tkr |
| David Marquardt Holding AB | Umeå | 0 tkr |
| Day Tripper AB | Umeå | 0 tkr |
| DB Invest i Umeå AB | Holmsund | 0 tkr |