| Mikael Svensson i Vimmerby AB | Vimmerby | 0 tkr |
| Mikael Thore Ventures AB | Kalmar | 0 tkr |
| Miljökonsult Sydost AB | Kalmar | 0 tkr |
| Miljövet i Kalmar AB | Kalmar | 0 tkr |
| Millisso AB | Nybro | 0 tkr |
| MilMar AB | Vimmerby | 0 tkr |
| Mindfulsexologen Scientia Dea AB | Emmaboda | 0 tkr |
| Miråk Holding AB | Timmernabben | 0 tkr |
| Mischief Managed AB | Färjestaden | 0 tkr |
| MISUSLIND AB | Vena | 0 tkr |
| Mittvaljen 3 AB | Norrköping | 0 tkr |
| Mivendor AB | Nybro | 0 tkr |
| Mivendor Invest AB | Nybro | 0 tkr |
| Miwicon AB | Mönsterås | 0 tkr |
| MJMA investment AB | Emmaboda | 0 tkr |
| MJ Mås Holding AB | Mönsterås | 0 tkr |
| MJ MAT AB | Färjestaden | 0 tkr |
| Mjödahult Fastighet AB | Broakulla | 0 tkr |
| M Johansson 103 AB | Kalmar | 0 tkr |
| Mjölkrobot 1 AB | Färjestaden | 0 tkr |
| M.Jonsén Solutions AB | Kalmar | 0 tkr |
| MK i Torsås AB | Torsås | 0 tkr |
| MKP Mäklarbyrå AB | Västervik | 0 tkr |
| MKS Fastigheter i Kalmar AB | Kalmar | 0 tkr |
| M Lundbergs Fisk AB | Borgholm | 0 tkr |
| MMP Holding i Vimmerby AB | Vimmerby | 0 tkr |
| MMZ Holding AB | Emmaboda | 0 tkr |
| MNL Holding AB | Mönsterås | 0 tkr |
| MNR Invest AB | Färjestaden | 0 tkr |
| MN Timber Holding AB | Västervik | 0 tkr |
| MOA Förvaltning AB | Kalmar | 0 tkr |
| Moa och Louises affärer AB | Västervik | 0 tkr |
| Mobil-Lyft i Oskarshamn Holding AB | Oskarshamn | 0 tkr |
| Möckleby Holding AB | Färjestaden | 0 tkr |
| Modulärbyggen i Kalmar AB | Kalmar | 0 tkr |
| Moella AB | Oskarshamn | 0 tkr |
| Molins Fastighetsutveckling Holding AB | Kalmar | 0 tkr |
| Molins Industrihus Aktiebolag | Kalmar | 0 tkr |
| Möllers Handels AB | Västervik | 0 tkr |
| Mollindén AB | Ankarsrum | 0 tkr |
| Möllstorp 2:3 AB | Kalmar | 0 tkr |
| MOLTEQ AB | Oskarshamn | 0 tkr |
| Möltorps Invest AB | Läckeby | 0 tkr |
| Moments by Us AB | Västervik | 0 tkr |
| Monenta AB | Vimmerby | 0 tkr |
| MONIRA livs AB | Kalmar | 0 tkr |
| Monodux Invest AB | Borgholm | 0 tkr |
| Mönsterås handel AB | Mönsterås | 0 tkr |
| Mönsterås Holding AB | Mönsterås | 0 tkr |
| Mönsterås Motor AB | Mönsterås | 0 tkr |