| Procellarum AB | Kvicksund | 0 tkr |
| ProdLog Invest AB | Västerås | 0 tkr |
| Produktionsdata Europa AB | Västerås | 0 tkr |
| Professional Coders Mälardalen AB | Västerås | 0 tkr |
| Professional Services 4 Companies AB | Västerås | 0 tkr |
| Pro Guide AB | Västerås | 0 tkr |
| Pro-Invest Sweden AB | Västerås | 0 tkr |
| ProJac AB | Norberg | 0 tkr |
| Proliferation I Sverige AB | Västerås | 0 tkr |
| Prometrias Fastighetsutveckling AB | Västerås | 0 tkr |
| Promexa VS AB | Västerås | 0 tkr |
| PRO Miljö & Logistik i Västerås AB | Västerås | 0 tkr |
| Prontum AB | Hallstahammar | 0 tkr |
| Pro Racing Academy AB | Västerås | 0 tkr |
| Proston Invest AB | Västerås | 0 tkr |
| Proveloper Holding 1 AB | Västerås | 0 tkr |
| ProWise Invest AB | Sala | 0 tkr |
| PSV Holding i Västerås AB | Västerås | 0 tkr |
| Psykiatrikonsult Camilla Revesjö AB | Göteborg | 0 tkr |
| Psykolog Monica Vester Niva AB | Surahammar | 0 tkr |
| Psymiss AB | Västerås | 0 tkr |
| PTL Holding AB | Västerås | 0 tkr |
| Pucni Västerås AB | Västerås | 0 tkr |
| Pugnacious AB | Västerås | 0 tkr |
| PULA AB | Västerås | 0 tkr |
| Pumpstigen Holding AB | Västerås | 0 tkr |
| Pure Animation Studio i Västerås AB | Västerås | 0 tkr |
| Purpl Factory Setting AB | Stockholm | 0 tkr |
| Puttepal AB | Västerås | 0 tkr |
| P.Vibergs bygg&montage AB | Västerås | 0 tkr |
| PVI Industries AB | Västerås | 0 tkr |
| P Vikner AB | Västerås | 0 tkr |
| PWF AB | Västerås | 0 tkr |
| QB Invest AB | Västerås | 0 tkr |
| QC HOLDING AB | Västerås | 0 tkr |
| Q-Form AB | Västerås | 0 tkr |
| Q-Nowa Mälardalen AB | Kungsör | 0 tkr |
| QP Grid Products AB | Sala | 0 tkr |
| Qratio Sverige AB | Västerås | 0 tkr |
| QSC Group AB | Västerås | 0 tkr |
| QSC Invest AB | Västerås | 0 tkr |
| Quality Systems Sverige AB | Surahammar | 0 tkr |
| Quesee AB | Västerås | 0 tkr |
| Quintus Technologies Holding AB | Västerås | 0 tkr |
| Quorum AB | Västerås | 0 tkr |
| Qvantum Uthyrnings AB | Möklinta | 0 tkr |
| Qvick Action AB | Västerås | 0 tkr |
| Qvirec AB | Västerås | 0 tkr |
| QVR Holding AB | Surahammar | 0 tkr |
| Qxpartner AB | Stockholm | 0 tkr |