| Martinson Group Aktiebolag | Umeå | 0 tkr |
| Martinsons Trä AB | Bygdsiljum | 0 tkr |
| Maskintransporter i Byske AB | Byske | 0 tkr |
| MA Svetsprodukter i Skellefteå Aktiebolag | Skellefteå | 0 tkr |
| Matias Karlsson Trading AB | Skellefteå | 0 tkr |
| Mats Brännström Förvaltning AB | Skellefteå | 0 tkr |
| Matte Konsult AB | Kåge | 0 tkr |
| Måttet Rågat AB | Skellefteå | 0 tkr |
| Mattias 2001 AB | Byske | 0 tkr |
| Mattias Näslund Holding AB | Luleå | 0 tkr |
| Maxiver AB | Skellefteå | 0 tkr |
| MBW Fastigheter AB | Skellefteå | 0 tkr |
| MCL Holding AB | Skellefteå | 0 tkr |
| ME34 Invest AB | Skellefteå | 0 tkr |
| Medbridge AB | Skellefteå | 0 tkr |
| Medicol AB | Skellefteå | 0 tkr |
| Mellanbygdens Fastigheter AB | Skellefteå | 0 tkr |
| M Engström Invest AB | Skellefteå | 0 tkr |
| Mental Medic 24/7 AB | Kungsbacka | 0 tkr |
| Metso Outotec Metals Sweden AB | Skellefteå | 0 tkr |
| Mexor Holding AB | Skellefteå | 0 tkr |
| MGGU AB | Skellefteå | 0 tkr |
| MGM Holding AB | Skellefteå | 0 tkr |
| M. Granström Aktiebolag | Skellefteå | 0 tkr |
| M. Holmström Holding AB | Skellefteå | 0 tkr |
| MICENGS Trotting AB | Skellefteå | 0 tkr |
| MIKAN Förvaltning AB | Skellefteå | 0 tkr |
| Mindforce Game Lab AB | Mölndal | 0 tkr |
| Minnow Holding AB | Sundbyberg | 0 tkr |
| Missimyran Aktiebolag | Lövånger | 0 tkr |
| M.Jeannette AB | Skellefteå | 0 tkr |
| MJ Skellefteå Holding AB | Skellefteå | 0 tkr |
| M&M Fast Holding AB | Skellefteå | 0 tkr |
| MN Förvaltning i Skellefteå AB | Skellefteå | 0 tkr |
| MNMM AB | Skellefteå | 0 tkr |
| MNO AB | Skellefteå | 0 tkr |
| Möbeltrion Skellefteå AB | Skellefteå | 0 tkr |
| MOBY i Skellefteå AB | Skellefteå | 0 tkr |
| Modern Media i Norr AB | Skellefteå | 0 tkr |
| Momest AB | Kåge | 0 tkr |
| Mona Nilzén AB | Skellefteå | 0 tkr |
| MonPovik AB | Skellefteå | 0 tkr |
| Mons Capra Marketing AB | Skellefteå | 0 tkr |
| Monter-ringen AB | Skellefteå | 0 tkr |
| Monvik i Skellefteå AB | Skellefteå | 0 tkr |
| Moodyard AB | Skellefteå | 0 tkr |
| Moröbacke Invest Aktiebolag | Skellefteå | 0 tkr |
| MPS Däck AB | Skellefteå | 0 tkr |
| M.ST Industrimontage & Alltjänst i Norden AB | Skelleftehamn | 0 tkr |
| M Thunell Förvaltning AB | Bygdsiljum | 0 tkr |