| Weilar Holding AB | Saltsjö-Boo | 0 tkr |
| WEJF Förvaltnings AB | Saltsjö-Duvnäs | 0 tkr |
| Wendigo Aktiebolag | Saltsjö-Boo | 0 tkr |
| Wennas Consulting AB | Nacka | 0 tkr |
| Wennman Holding AB | Saltsjö-Boo | 0 tkr |
| Wenode AB | Saltsjö-Boo | 0 tkr |
| WE Plus AB | Saltsjöbaden | 0 tkr |
| We Plus Holding AB | Saltsjöbaden | 0 tkr |
| Wermdö Racketservice Aktiebolag | Värmdö | 0 tkr |
| WESSEL KONSULT AB | Saltsjöbaden | 0 tkr |
| Westrup Investment & Holding Group AB | Älta | 0 tkr |
| WeTree AB | Nacka | 0 tkr |
| Wgren Holding AB | Nacka | 0 tkr |
| WhenInSpace AB | Nacka | 0 tkr |
| Wherryness AB | Saltsjöbaden | 0 tkr |
| White Dwarf Technology Aktiebolag | Saltsjöbaden | 0 tkr |
| Whittingham Invest AB | Nacka | 0 tkr |
| WHR medicus AB | Nacka | 0 tkr |
| Why Entropy AB | Nacka | 0 tkr |
| Why invest AB | Saltsjö-Boo | 0 tkr |
| Why not works Aktiebolag | Stockholm | 0 tkr |
| Whyshore AB | Nacka | 0 tkr |
| Wide Invention AB | Älta | 0 tkr |
| Wiik Inredning & Design AB | Saltsjö-Boo | 0 tkr |
| Wiljander investeringsaktiebolag | Nacka | 0 tkr |
| Willbell AB | Saltsjöbaden | 0 tkr |
| Willemo Kontorslösningar AB | Saltsjöbaden | 0 tkr |
| Willevall AB | Saltsjöbaden | 0 tkr |
| William Förvaltning AB | Saltsjöbaden | 0 tkr |
| Willowcrest AB | Saltsjöbaden | 0 tkr |
| Wilus AB | Saltsjöbaden | 0 tkr |
| Winblad Invest AB | Saltsjö-Boo | 0 tkr |
| WindJammer AB | Saltsjö-Boo | 0 tkr |
| Winning Insights AB | Täby | 0 tkr |
| Wirsenius Consulting AB | Nacka | 0 tkr |
| Witazz AB | Saltsjöbaden | 0 tkr |
| Wite Development AB | Saltsjöbaden | 0 tkr |
| Withope Invest AB | Nacka | 0 tkr |
| Witte Consulting AB | Stockholm | 0 tkr |
| W Kraft AB | Saltsjö-Boo | 0 tkr |
| WL Invest AXG AB | Saltsjö-Boo | 0 tkr |
| WL Transport & Service AB | Saltsjöbaden | 0 tkr |
| WM Fastighet Nosshult AB | Saltsjö-Boo | 0 tkr |
| WM Fastighet Saltvik AB | Saltsjö-Boo | 0 tkr |
| WM Fastighets Holding AB | Saltsjö-Boo | 0 tkr |
| WM Fastighet Ytterhogdal AB | Saltsjö-Boo | 0 tkr |
| WM Konsulting AB | Saltsjö-Boo | 0 tkr |
| WNGL. CONSULTING AB | Stockholm | 0 tkr |
| Woldu Investments AB | Nacka | 0 tkr |
| Woodrowone AB | Nacka | 0 tkr |