| Israelzon Service AB | Gränna | 0 tkr |
| Istra Holding AB | Eksjö | 0 tkr |
| ITAB Pharmacy Concept AB | Jönköping | 0 tkr |
| IT Byggtjänst AB | Bottnaryd | 0 tkr |
| Iternal Nordic AB | Jönköping | 0 tkr |
| ITM Invest AB | Hok | 0 tkr |
| Itus AB | Nässjö | 0 tkr |
| Ivan Yvette AB | Värnamo | 0 tkr |
| Ivar Svenssons Trafik Holding AB | Bredaryd | 0 tkr |
| IWW AB | Tranås | 0 tkr |
| IZA Capital AB | Smålandsstenar | 0 tkr |
| J3M Group AB | Smålandsstenar | 0 tkr |
| J3M Innovations AB | Smålandsstenar | 0 tkr |
| J3M StartUps AB | Smålandsstenar | 0 tkr |
| J.A.A.F Fastigheter AB | Nässjö | 0 tkr |
| JAAL Konsult AB | Mölndal | 0 tkr |
| Jabrin Invest AB | Jönköping | 0 tkr |
| Jabrin Konsult AB | Jönköping | 0 tkr |
| JACKAB AB | Jönköping | 0 tkr |
| Jacks Mobil AB | Jönköping | 0 tkr |
| Jäderup Holding AB | Lekeryd | 0 tkr |
| JÄD POK AB | Jönköping | 0 tkr |
| Jägerby Holding AB | Bor | 0 tkr |
| JA Hansson Konsult AB | Jönköping | 0 tkr |
| JA Holding AB | Jönköping | 0 tkr |
| JÅ Holding i Jönköping AB | Jönköping | 0 tkr |
| Jakob Engdahl AB | Stockholm | 0 tkr |
| JAMACON INVEST AB | Jönköping | 0 tkr |
| Jamica AB | Jönköping | 0 tkr |
| Jan Alm Förvaltnings Aktiebolag | Tranås | 0 tkr |
| Jan Andersson Invest AB | Jönköping | 0 tkr |
| Jan Björsell AB | Huskvarna | 0 tkr |
| Jan Claessons Rör AB | Aneby | 0 tkr |
| Jan E Holding AB | Vetlanda | 0 tkr |
| Janeke Consulting AB | Jönköping | 0 tkr |
| Jan-Erik Edvinson Aktiebolag | Hjo | 0 tkr |
| Janjus Media AB | Tranås | 0 tkr |
| Jan Karlssons Åkeri Förvaltnings AB | Tenhult | 0 tkr |
| Janni Invest AB | Forserum | 0 tkr |
| Jan-Ove Larsson i Gnosjö Aktiebolag | Falun | 0 tkr |
| JanRos AB | Jönköping | 0 tkr |
| Jansson/Edvardsson Förvaltning AB | Gnosjö | 0 tkr |
| Jaouni Ventures AB | Huskvarna | 0 tkr |
| Japo AB | Vetlanda | 0 tkr |
| Jappra AB | Jönköping | 0 tkr |
| JAREG AB | Vetlanda | 0 tkr |
| Järnhästen Invest AB | Norrahammar | 0 tkr |
| Järstorps Omsorg AB | Jönköping | 0 tkr |
| Järvesjö Medicin AB | Jönköping | 0 tkr |
| Järviken Consulting AB | Jönköping | 0 tkr |