| TGF Härryda AB | Stockholm | 0 tkr |
| TGF i Sverige AB | Stockholm | 0 tkr |
| Thomas Signal Konsult AB | Nyköping | 0 tkr |
| Tjuvholmens Transport AB | Nyköping | 0 tkr |
| TLW INTERNATIONAL AB | Nyköping | 0 tkr |
| TNF Inexa Holding AB | Stockholm | 0 tkr |
| TÖK AB | Stockholm | 0 tkr |
| Toltorp Bygg Intressenter AB | Nyköping | 0 tkr |
| Torngrund Gonäs AB | Nyköping | 0 tkr |
| Torngrund Group AB | Nyköping | 0 tkr |
| Torngrund Holding AB | Nyköping | 0 tkr |
| Totalmek i Nyköping Aktiebolag | Stigtomta | 0 tkr |
| Tove Forsberg Holding AB | Nyköping | 0 tkr |
| T-Petersson Holding AB | Nyköping | 0 tkr |
| TreBee Förvaltning AB | Nyköping | 0 tkr |
| Trim-Centrum Trosa Aktiebolag | Trosa | 0 tkr |
| Trippel A Holding AB | Nyköping | 0 tkr |
| Trivium HVB AB | Borlänge | 0 tkr |
| Trixie Karin AB | Skärblacka | 0 tkr |
| Trosalundsberget Holding AB | Stockholm | 0 tkr |
| Trumptorp Holding AB | Stockholm | 0 tkr |
| Trygg i Nyköping AB | Nyköping | 0 tkr |
| Tuka Holding AB | Stockholm | 0 tkr |
| Tunabergs Konsult AB | Nyköping | 0 tkr |
| Tuppstugan Förvaltning AB | Nyköping | 0 tkr |
| TurnMill Group AB | Finspång | 0 tkr |
| UGU Administration och Förvaltning Aktiebolag | Nyköping | 0 tkr |
| ULundgren AB | Nyköping | 0 tkr |
| Uniqbread Scandinavia AB | Nyköping | 0 tkr |
| Unitum AB | Nyköping | 0 tkr |
| Up Productions AB | Lidingö | 0 tkr |
| Ur Light AB | Nyköping | 0 tkr |
| URMA AB | Bettna | 0 tkr |
| Ursus Förvaltnings AB | Stockholm | 0 tkr |
| Vagnhärad Matmarknad AB | Gnesta | 0 tkr |
| VARF AB | Nyköping | 0 tkr |
| VBM Invest AB | Nyköping | 0 tkr |
| VB Stars AB | Stockholm | 0 tkr |
| Vibekes AB | Nyköping | 0 tkr |
| Vil AB | Nyköping | 0 tkr |
| Villabolaget i Södermanland AB | Nyköping | 0 tkr |
| Vindsikten AB | Nyköping | 0 tkr |
| VIOLReach AB | Nyköping | 0 tkr |
| Vippan Fastighets AB | Nyköping | 0 tkr |
| Virå Bruk Holding AB | Stavsjö | 0 tkr |
| VisionDa Aktiebolag | Tystberga | 0 tkr |
| Vistinge Bostad 1 AB | Eskilstuna | 0 tkr |
| Vistinge Bostad 2 AB | Eskilstuna | 0 tkr |
| Vistinge Bostad 3 AB | Eskilstuna | 0 tkr |
| Vistinge Holding 1 AB | Eskilstuna | 0 tkr |