| Oskar Andersson förvaltning AB | Eskilstuna | 0 tkr |
| ÖS Padel AB | Trosa | 0 tkr |
| Östanå 1:3 AB | Nyköping | 0 tkr |
| Österlid Invest AB | Djursholm | 0 tkr |
| Östra Grysta Resurs Aktiebolag | Flen | 0 tkr |
| Ostra Knall Consulting AB | Eskilstuna | 0 tkr |
| Östra Sörmlands Mark o Vent AB | Trosa | 0 tkr |
| Öströms Holding AB | Torshälla | 0 tkr |
| OTB Invest AB | Eskilstuna | 0 tkr |
| Otipa AB | Strängnäs | 0 tkr |
| Ottenås Fastigheter AB | Nyköping | 0 tkr |
| Ottersnäs nya torfaktiebolag | Stjärnhov | 0 tkr |
| Ove Jansson Bygg AB | Mariefred | 0 tkr |
| OVR20 AB | Eskilstuna | 0 tkr |
| Owenko AB | Katrineholm | 0 tkr |
| OwnYourOwn AB | Nyköping | 0 tkr |
| Oxbom Holding AB | Oxelösund | 0 tkr |
| Oxelö Invest AB | Oxelösund | 0 tkr |
| Oxelösunds kommuns Förvaltnings Aktiebolag | Oxelösund | 0 tkr |
| Oxelösunds Livs Aktiebolag | Oxelösund | 0 tkr |
| Ox Island AB | Nyköping | 0 tkr |
| PA&Co Aktiebolag | Undersåker | 0 tkr |
| PAKLÖNN Förvaltning AB | Trosa | 0 tkr |
| Palms Service Holding AB | Nyköping | 0 tkr |
| Pang i bygget Holding AB | Eskilstuna | 0 tkr |
| PANY Invest AB | Eskilstuna | 0 tkr |
| Paper Plane Holding AB | Eskilstuna | 0 tkr |
| Pär Åkerberg Holding AB | Vagnhärad | 0 tkr |
| Parenting Collective AB | Nyköping | 0 tkr |
| Parkering Eskilstuna AB | Eskilstuna | 0 tkr |
| Parkservice Stockholm AB | Stallarholmen | 0 tkr |
| Pärltorp Invest AB | Nyköping | 0 tkr |
| Pärnaste Holding AB | Eskilstuna | 0 tkr |
| Pär Stenstierna AB | Stockholm | 0 tkr |
| Partens AB | Vingåker | 0 tkr |
| PASU Fastighetsförvaltning AB | Trosa | 0 tkr |
| PA Trading AB | Eskilstuna | 0 tkr |
| Patrik & Andreas Holding AB | Oxelösund | 0 tkr |
| Patrik Karlsson Holding AB | Eskilstuna | 0 tkr |
| Patrik Woss AB | Stockholm | 0 tkr |
| Paula Gocko Holding AB | Eskilstuna | 0 tkr |
| Paus3d Holding AB | Strängnäs | 0 tkr |
| Pax Mariae Golfanläggningar AB | Mariefred | 0 tkr |
| Pax Property Development AB | Stockholm | 0 tkr |
| PB Forkman AB | Strängnäs | 0 tkr |
| P&B Handel Aktiebolag | Strängnäs | 0 tkr |
| PBO AB | Nyköping | 0 tkr |
| PCJE AB | Katrineholm | 0 tkr |
| Peaceland Management AB | Gnesta | 0 tkr |
| Pea Cellis AB | Eskilstuna | 0 tkr |