| Wan Kim Invest AB | Mariefred | 0 tkr |
| WANOBE AB | Gnesta | 0 tkr |
| Warehouse of trends AB | Skogstorp | 0 tkr |
| Warensjö Investment AB | Nyköping | 0 tkr |
| Warpig Invest AB | Nyköping | 0 tkr |
| Wasan utveckling AB | Jönköping | 0 tkr |
| Wassler Invest AB | Nyköping | 0 tkr |
| Wästergården i Stockholm AB | Vingåker | 0 tkr |
| Waten AB | Eskilstuna | 0 tkr |
| Web Meritus Holding AB | Stallarholmen | 0 tkr |
| Wedev AB | Torshälla | 0 tkr |
| Wedin Solutions AB | Eskilstuna | 0 tkr |
| Wedlep AB | Eskilstuna | 0 tkr |
| Welander Psykkonsult Aktiebolag | Stockholm | 0 tkr |
| Weldmec i Eskilstuna AB | Eskilstuna | 0 tkr |
| Wellcap Adventure AB | Strängnäs | 0 tkr |
| Wellcap Holding AB | Strängnäs | 0 tkr |
| Wellstream AB | Kvicksund | 0 tkr |
| WellWell AB | Vittsjö | 0 tkr |
| Wessberggruppen AB | Hölö | 0 tkr |
| Westbarn Holding AB | Nyköping | 0 tkr |
| Westbarn Värdepapper AB | Stockholm | 0 tkr |
| Westerfrakt Förvaltning AB | Stallarholmen | 0 tkr |
| Westlin Förvaltning AB | Katrineholm | 0 tkr |
| Westlin Investment AB | Vingåker | 0 tkr |
| Westlund Racing & Consulting AB | Gävle | 0 tkr |
| Weyn Group AB | Nyköping | 0 tkr |
| WHEN SIMONSAYS AB | Stockholm | 0 tkr |
| WHG Sweden AB | Torshälla | 0 tkr |
| WHK Holding AB | Nyköping | 0 tkr |
| W&H Retail AB | Flen | 0 tkr |
| Wienbe AB | Vingåker | 0 tkr |
| Wigran AB | Torshälla | 0 tkr |
| Wijoy Invest AB | Torshälla | 0 tkr |
| Wildbird AB | Oxelösund | 0 tkr |
| Wilton Invest AB | Huddinge | 0 tkr |
| Winblad von Walter Mäkleri AB | Nyköping | 0 tkr |
| Winging IT AB | Torshälla | 0 tkr |
| WinHed AB | Katrineholm | 0 tkr |
| Winscreen Capital AB | Mariefred | 0 tkr |
| Wippe Invest & Allservice Fastighets AB | Eskilstuna | 0 tkr |
| Wiséns skolsupport AB | Nyköping | 0 tkr |
| W Johnson Holding AB | Eskilstuna | 0 tkr |
| WLW Invest AB | Trosa | 0 tkr |
| WNT AB | Trosa | 0 tkr |
| Wolt Active AB | Trosa | 0 tkr |
| Women Invest AB | Eskilstuna | 0 tkr |
| Wonder Collars Sverige AB | Rosvik | 0 tkr |
| Wood4C AB | Vingåker | 0 tkr |
| Work by F AB | Oxelösund | 0 tkr |