| TC MUR & PUTS AB | Norsborg | — |
| TDF Bygg AB | Norsborg | — |
| Techrytera AB | Norsborg | — |
| TechSpx AB | Norsborg | — |
| Temal Bygg AB | Tumba | — |
| Terra Maximus InWester Handelsbolag | Tullinge | — |
| Terranex Mark & Entreprenad AB | Tumba | — |
| TERRN AB | Tullinge | — |
| The Beauty Atelier Sthlm AB | Bandhagen | — |
| THK AB | Märsta | — |
| Thracian Cellars AB | Tumba | — |
| Tiru DermaX AB | Norsborg | — |
| TJÅKKO Shoes and Adventure AB | Uttran | — |
| TKRAV AB | Tumba | — |
| TM PRO ENTREPRENAD AB | Falun | — |
| TMT Glasklart Handelsbolag | Nykvarn | — |
| Tonys Mode Handelsbolag | Norsborg | — |
| Toplevel Engineer Sweden AB | Grödinge | — |
| Total Byggservice Azat AB | Tumba | — |
| Traditor i Sverige AB | Tullinge | — |
| Trafiklaget AB | Norsborg | — |
| Treasured Sweden AB | Uttran | — |
| Trömer Pizzeria Handelsbolag | Bromma | — |
| Trygga of Sweden AB | Tullinge | — |
| TryggPartner Scandinavia AB | Tumba | — |
| TSN Automotive AB | Huddinge | — |
| TT Vård AB | Norsborg | — |
| Tullingeberg Mur & Bygg AB | Kilafors | — |
| Tullinge Blommor Handelsbolag | Tullinge | — |
| Tullinge Bobutik AB | Stockholm | — |
| Tullinge Industrikonsult AB | Tullinge | — |
| TULLINGE PIZZERIA & RESTAURANG HANDELSBOLAG | Tullinge | — |
| Tullingestrands måleri AB | Tullinge | — |
| Tumba Academy AB | Tumba | — |
| TUMBA SPEL & TOBAK Handelsbolag | Tumba | — |
| Tumba Tak Kommanditbolag | Tumba | — |
| Twing i Stockholm kommanditbolag | Grödinge | — |
| ULTRA MEDIC SWEDEN AB | Rönninge | — |
| UNGA Drift AB | Tumba | — |
| Usmania Handelsbolaget | Norsborg | — |
| Utilis Bygg AB | Uttran | — |
| UZUNEL Affärspartner Handelsbolag | Tullinge | — |
| Valvora entreprenad AB | Uttran | — |
| Vamale Solutions AB | Norsborg | — |
| Vanja Solutions AB | Tumba | — |
| Vanko bygg AB | Tumba | — |
| Värdekompaniet AB | Norsborg | — |
| Vårt Hörn AB | Tumba | — |
| Västertorpsgrillen Handelsbolag | Norsborg | — |
| Velour Måleri AB | Tumba | — |