| Mönsteråsvikens Fastighets AB | Mönsterås | 0 tkr |
| Montageservice i Kalmar AB | Jönköping | 0 tkr |
| Moose Bay Holdings AB | Mörbylånga | 0 tkr |
| Moosehead Entertainment AB | Nybro | 0 tkr |
| Mopan AB | Storebro | 0 tkr |
| Mörbylånga Biogas AB | Färjestaden | 0 tkr |
| Mörbylånga Transport Aktiebolag | Mörbylånga | 0 tkr |
| Möre Köpcenter AB | Söderåkra | 0 tkr |
| Morells Bar & Restaurang Aktiebolag | Löttorp | 0 tkr |
| MÖRE MEKANISKA AB | Hagby | 0 tkr |
| Mossberga Gård AB | Borgholm | 0 tkr |
| Mossebo Gästhem AB | Boxholm | 0 tkr |
| Mosshaga Invest AB | Vimmerby | 0 tkr |
| Mosters Bak AB | Kalmar | 0 tkr |
| Moveåtta Fastigheter AB | Kalmar | 0 tkr |
| Movefem Förvaltnings AB | Kalmar | 0 tkr |
| Movenio Fastigheter AB | Kalmar | 0 tkr |
| Movesex Fastigheter AB | Kalmar | 0 tkr |
| Movesju Fastigheter AB | Kalmar | 0 tkr |
| Movetvå Fastigheter AB | Kalmar | 0 tkr |
| Movi Intressenter AB | Mönsterås | 0 tkr |
| Movinvest i Mönsterås AB | Mönsterås | 0 tkr |
| MP Group Holding AB | Läckeby | 0 tkr |
| MP Holding i Kalmar AB | Kalmar | 0 tkr |
| MP International Aktiebolag | Vimmerby | 0 tkr |
| MPK Invest AB | Köpingsvik | 0 tkr |
| MPK Maskinteknik AB | Kalmar | 0 tkr |
| M Porträtt AB | Virserum | 0 tkr |
| MP Platform AB | Löttorp | 0 tkr |
| Mr Stick Holding AB | Högsby | 0 tkr |
| MSG Förvaltnings AB | Västervik | 0 tkr |
| MSG KALMAR AB | Kalmar | 0 tkr |
| MS Holding AB | Kalmar | 0 tkr |
| MTG Partners AB | Kalmar | 0 tkr |
| MTO Restaurang AB | Färjestaden | 0 tkr |
| MTR Blue AB | Mönsterås | 0 tkr |
| MTW Holding AB | Oskarshamn | 0 tkr |
| Muggetorps Fastighetsköp AB | Vissefjärda | 0 tkr |
| Mulligan Invest AB | Borgholm | 0 tkr |
| Multibygg Sydost Holding AB | Kalmar | 0 tkr |
| Mümick AB | Åtvidaberg | 0 tkr |
| Muris Taxi AB | Hultsfred | 0 tkr |
| Musina Aktiebolag | Nybro | 0 tkr |
| Muskelbygget i Vimmerby AB | Vimmerby | 0 tkr |
| Mutual Design Holding AB | Ljungbyholm | 0 tkr |
| Mutual Project Sweden AB | Kalmar | 0 tkr |
| MVG Systems AB | Södra Vi | 0 tkr |
| M W A Förvaltning AB | Borgholm | 0 tkr |
| Mycket Gutt Holding AB | Kalmar | 0 tkr |
| My i Kalmar AB | Kalmar | 0 tkr |