| Öden & Äventyr AB | Kullavik | 0 tkr |
| Odin Consulting AB | Halmstad | 0 tkr |
| Odinwell AB | Halmstad | 0 tkr |
| OE Hus AB | Älvsered | 0 tkr |
| Oertegren Distribution AB | Fjärås | 0 tkr |
| Oertegren International Enterprises AB | Fjärås | 0 tkr |
| Of course, we can of Sweden AB | Åsa | 0 tkr |
| Offe AB | Göteborg | 0 tkr |
| OfficeVAN AB | Varberg | 0 tkr |
| Ögården Markinvest AB | Onsala | 0 tkr |
| OHB Consulting AB | Kullavik | 0 tkr |
| OH Förvaltning AB | Halmstad | 0 tkr |
| Ohlander i Kullavik AB | Kullavik | 0 tkr |
| Öhrns Properties AB | Onsala | 0 tkr |
| Öhrwallgruppen AB | Varberg | 0 tkr |
| Ojma AB | Veddige | 0 tkr |
| Ojma förvaltning AB | Veddige | 0 tkr |
| Okazis AB | Onsala | 0 tkr |
| Okéns Holding AB | Varberg | 0 tkr |
| Ola Deibitsch Holding AB | Kungsbacka | 0 tkr |
| Ola Mårtensson Holding AB | Falkenberg | 0 tkr |
| Olav Magnusson Aktiebolag | Kullavik | 0 tkr |
| OLG Agri AB | Tvååker | 0 tkr |
| OLHOPATO AB | Halmstad | 0 tkr |
| Olina Holding AB | Falkenberg | 0 tkr |
| Oljemagasinet Holding AB | Kungsbacka | 0 tkr |
| Oljeskär Invest AB | Kungälv | 0 tkr |
| Olle Bliding AB | Halmstad | 0 tkr |
| Olle Ljungström Förvaltning II AB | Falkenberg | 0 tkr |
| Ölmevalla Juridiska Byrå AB | Åsa | 0 tkr |
| Olof Jönsgård AB | Kungsbacka | 0 tkr |
| Olofsbo Havskant AB | Halmstad | 0 tkr |
| Olofsson Solution AB | Halmstad | 0 tkr |
| Olov Nyström Förvaltning AB | Varberg | 0 tkr |
| Olssonworks Holding AB | Falkenberg | 0 tkr |
| Oltorp Winroth AB | Malmö | 0 tkr |
| OLVI AB | Varberg | 0 tkr |
| OMAKA Creative Venture AB | Malmö | 0 tkr |
| Ombarn M & M AB | Halmstad | 0 tkr |
| OMi1 Second Hand AB | Kullavik | 0 tkr |
| OMKOD AB | Varberg | 0 tkr |
| Omnicit Holding AB | Åsa | 0 tkr |
| Omnilight AB | Kungsbacka | 0 tkr |
| Omniloop AB | Varberg | 0 tkr |
| Onai AB | Frillesås | 0 tkr |
| OneBuild i Halmstad AB | Ljungby | 0 tkr |
| Oneken Holding AB | Varberg | 0 tkr |
| OneStrat Trading AB | Skällinge | 0 tkr |
| One to add AB | Onsala | 0 tkr |
| Only Inhuman AB | Falkenberg | 0 tkr |