| BLST AB | Lidingö | 0 tkr |
| Blueridge AB | Lidingö | 0 tkr |
| B.Nätter Redovisning AB | Norrtälje | 0 tkr |
| BoB Bo Bergman Aktiebolag | Lidingö | 0 tkr |
| Bodvise Consulting AB | Lidingö | 0 tkr |
| Boghammar Marindesign AB | Lidingö | 0 tkr |
| Boghammar Varvs Aktiebolag | Lidingö | 0 tkr |
| Bokafix AB | Stockholm | 0 tkr |
| Bokförlaget Omar AB | Norrtälje | 0 tkr |
| Bokiab Bygg AB | Lidingö | 0 tkr |
| Bolmdahl Konsult AB | Bolmsö | 0 tkr |
| Bonaventure Holdings AB | Solna | 0 tkr |
| Bon Island Capital AB | Mellbystrand | 0 tkr |
| Bonré Bygg o Fastigheter AB | Vagnhärad | 0 tkr |
| Bonver Logistics Fulfillment AB | Lidingö | 0 tkr |
| BOOM FOOD SWEDEN AB | Lidingö | 0 tkr |
| Boop It Design AB | Lidingö | 0 tkr |
| BOOSTorg AB | Lidingö | 0 tkr |
| Borgata Invest AB | Lidingö | 0 tkr |
| Born Försäkring Holding AB | Lidingö | 0 tkr |
| Bornstein Consulting AB | Stockholm | 0 tkr |
| Bosögården Aktiebolag | Lidingö | 0 tkr |
| Bosögården Förvärv AB | Lidingö | 0 tkr |
| Bottle Rocket Capital AB | Lidingö | 0 tkr |
| Bow wow AB | Lidingö | 0 tkr |
| Boyd Wardley AB | Lidingö | 0 tkr |
| B & P, Boje & Partners Aktiebolag | Lidingö | 0 tkr |
| BQ Corporate AB | Åkersberga | 0 tkr |
| Brändholms Holding AB | Lidingö | 0 tkr |
| Brantabacken AB | Stockholm | 0 tkr |
| Breddens Bageri AB | Lidingö | 0 tkr |
| Bredsand Gårdsby AB | Lidingö | 0 tkr |
| Breitner Invest AB | Lidingö | 0 tkr |
| Brick Build Academy Sweden AB | Lidingö | 0 tkr |
| Bridgeknock AB | Vällingby | 0 tkr |
| Brieng Invest AB | Lidingö | 0 tkr |
| Brifffid AB | Lidingö | 0 tkr |
| Brimbeq AB | Lidingö | 0 tkr |
| Briot AB | Lidingö | 0 tkr |
| Bristly Wine Agents AB | Stockholm | 0 tkr |
| Brite Invest AB | Lidingö | 0 tkr |
| Brock Investment AB | Lidingö | 0 tkr |
| Bröderna Persson invest i Lidingö AB | Lidingö | 0 tkr |
| Bröderna Perssons Fastighetsbolag i Lidingö AB | Arlöv | 0 tkr |
| Brotab AB | Lidingö | 0 tkr |
| Brotorpkonsult AB | Lidingö | 0 tkr |
| Brüthjelm Explorer Aktiebolag | Lidingö | 0 tkr |
| bsecure AB | Lidingö | 0 tkr |
| Burs 1:37 AB | Lidingö | 0 tkr |
| Burse Invest AB | Lidingö | 0 tkr |