| Karlshamn Optic Services AB | Göteborg | 0 tkr |
| Karlshamns Transport & Hantering Holding AB | Karlshamn | 0 tkr |
| Karlssons Tandvård AB | Karlshamn | 0 tkr |
| Kommuncoach Stefan Karlsson AB | Asarum | 0 tkr |
| Kork of Sweden AB | Karlshamn | 0 tkr |
| Krappsjö Holding AB | Karlshamn | 0 tkr |
| Krögarpartner Sverige AB | Karlshamn | 0 tkr |
| Kvadratum AB | Karlshamn | 0 tkr |
| Kylinge Holding AB | Mörrum | 0 tkr |
| LABS beyond AB | Karlshamn | 0 tkr |
| la Fleur Holding AB | Karlshamn | 0 tkr |
| Lanette Consult i Carlshamn AB | Karlshamn | 0 tkr |
| Långasjönäs Holiday Homes AB | Vinslöv | 0 tkr |
| Länsförsäkringar Blekinge Utveckling AB | Karlshamn | 0 tkr |
| Leanprovement and Leadership Consulting AB | Lund | 0 tkr |
| Levilo Invest AB | Karlshamn | 0 tkr |
| Lindberg Consulting Blekinge AB | Karlshamn | 0 tkr |
| Lindström & Söner Holding AB | Karlshamn | 0 tkr |
| LK Kapitalförvaltning AB | Trensum | 0 tkr |
| LOHfast AB | Karlshamn | 0 tkr |
| Lotsiana Aktiebolag | Karlshamn | 0 tkr |
| LT Holding i Karlshamn AB | Karlshamn | 0 tkr |
| Luwica AB | Karlshamn | 0 tkr |
| MachineTech Lego Sweden AB | Mörrum | 0 tkr |
| Magnus Malmros AB | Ronneby | 0 tkr |
| Maham AB | Svängsta | 0 tkr |
| Mange Pange Invest AB | Karlshamn | 0 tkr |
| MARANN AB | Karlshamn | 0 tkr |
| Martin Elsa Holding AB | Mörrum | 0 tkr |
| Maskin Innovatörerna i Carlshamn AB | Bräkne-Hoby | 0 tkr |
| Mats Ermestål AB | Mörrum | 0 tkr |
| Mattias Nygren Spelutveckling AB | Asarum | 0 tkr |
| Matvik-Tärnö Linjen Aktiebolag | Karlshamn | 0 tkr |
| Maverich Holding AB | Karlshamn | 0 tkr |
| MAWIL Invest AB | Karlshamn | 0 tkr |
| MCL Solutions AB | Asarum | 0 tkr |
| MDF i Karlshamn Aktiebolag | Trensum | 0 tkr |
| Medlivab AB | Hägersten | 0 tkr |
| M Ekonomikonsult AB | Asarum | 0 tkr |
| MGE Konsult i Karlshamn AB | Karlshamn | 0 tkr |
| MG Forsbacka Holding AB | Mörrum | 0 tkr |
| MH's Bygg Aktiebolag | Trensum | 0 tkr |
| MH Utbildning AB | Mörrum | 0 tkr |
| Mijoda Holding AB | Karlshamn | 0 tkr |
| MIRR AB | Broby | 0 tkr |
| Modlon AB | Karlshamn | 0 tkr |
| Morgan Gustavsson Holding AB | Mörrum | 0 tkr |
| Mötesplats Samverkan AB | Karlstad | 0 tkr |
| MPR Holding AB | Asarum | 0 tkr |
| Murvall Invest AB | Asarum | 0 tkr |