| Oneyard Bygg och Fastigheter AB | Ekerö | 0 tkr |
| On Eyes Sweden AB | Helsingborg | 0 tkr |
| O Nilsson Holding AB | Helsingborg | 0 tkr |
| Onteo Solve AB | Helsingborg | 0 tkr |
| OPC Capital AB | Domsten | 0 tkr |
| OPC Partner AB | Domsten | 0 tkr |
| OPC Treasury AB | Domsten | 0 tkr |
| OP Ship Helsingborg AB | Helsingborg | 0 tkr |
| Opticap AB | Helsingborg | 0 tkr |
| OptiSense Care AB | Helsingborg | 0 tkr |
| Orbito Holding AB | Helsingborg | 0 tkr |
| Örestad Holding AB | Helsingborg | 0 tkr |
| Örestad Projekt AB | Helsingborg | 0 tkr |
| Öresundsakuten AB | Helsingborg | 0 tkr |
| Öresunds mobila skrot- och antikhandel AB | Helsingborg | 0 tkr |
| Öresundteknik Holding AB | Malmö | 0 tkr |
| Orial Technologies AB | Helsingborg | 0 tkr |
| Orkesta-Mörby 3:20 AB | Södertälje | 0 tkr |
| Örlén Bygg AB | Helsingborg | 0 tkr |
| Örnahall Invest AB | Domsten | 0 tkr |
| Orsing Holding AB | Råå | 0 tkr |
| Oseal Träning AB | Helsingborg | 0 tkr |
| Oskar K Holding AB | Hässelby | 0 tkr |
| Oskar Natt och Dag Media Sales AB | Helsingborg | 0 tkr |
| Österns Pärla i Helsingborg Aktiebolag | Helsingborg | 0 tkr |
| Öster Project Development AB | Rydebäck | 0 tkr |
| Osthuset i Helsingborg Aktiebolag | Råå | 0 tkr |
| Östra Tornet Invest AB | Helsingborg | 0 tkr |
| OT ErgoBalance AB | Kristianstad | 0 tkr |
| Othea Bostadsaktiebolag | Eslöv | 0 tkr |
| Otiem Holding AB | Domsten | 0 tkr |
| Ove Pålsson Holding AB | Råå | 0 tkr |
| Ownex AB | Helsingborg | 0 tkr |
| Öxells i Helsingborg AB | Helsingborg | 0 tkr |
| Oziro AB | Helsingborg | 0 tkr |
| Paanit AB | Helsingborg | 0 tkr |
| Pac Group Europe AB | Råå | 0 tkr |
| Pacon Invest AB | Helsingborg | 0 tkr |
| Pacotec AB | Helsingborg | 0 tkr |
| Påfab AB | Råå | 0 tkr |
| PÅH Consulting AB | Viken | 0 tkr |
| P.A Hübinette Consulting AB | Helsingborg | 0 tkr |
| Pakop Invest AB | Mörarp | 0 tkr |
| P A Kristoffersson Consulting Uddevalla AB | Helsingborg | 0 tkr |
| PAK Trans AB | Helsingborg | 0 tkr |
| Paleco Konsult AB | Mörarp | 0 tkr |
| Palle Jensen Invest AB | Viken | 0 tkr |
| Pålsjöbaden Investment AB | Helsingborg | 0 tkr |
| Pålsjö Konsult AB | Helsingborg | 0 tkr |
| Pålsjö Trading AB | Helsingborg | 0 tkr |