| Bensviken Holding AB | Ljusterö | 0 tkr |
| Bergafastigheter Investment AB | Åkersberga | 0 tkr |
| Berg brand consulting AB | Norrtälje | 0 tkr |
| Bergemalm Holding AB | Österskär | 0 tkr |
| Bertil Nyberg Konsult Aktiebolag | Åkersberga | 0 tkr |
| B Fischer AB | Åkersberga | 0 tkr |
| Binakria AB | Stockholm | 0 tkr |
| Bioswed Scientific AB | Urshult | 0 tkr |
| Birchlane AB | Åkersberga | 0 tkr |
| Bireli AB | Österskär | 0 tkr |
| Biskopstuna Invest AB | Åkersberga | 0 tkr |
| BIT, Binary Instruments Technology Scandinavia Aktiebolag | Åkersberga | 0 tkr |
| Bjeld Aktiebolag | Åkersberga | 0 tkr |
| Björkhaga Teknik AB | Åkersberga | 0 tkr |
| Björn Vestberg AB | Åkersberga | 0 tkr |
| BKL cars AB | Åkersberga | 0 tkr |
| Blaus Naprapater AB | Åkersberga | 0 tkr |
| BL.B Management Consulting AB | Åkersberga | 0 tkr |
| Blomqvist Plåtslageri AB | Bålsta | 0 tkr |
| BMPro Holding AB | Åkersberga | 0 tkr |
| Bobacken Consulting AB | Åkersberga | 0 tkr |
| Bondeman Projektledning AB | Åkersberga | 0 tkr |
| BORDI Invest AB | Åkersberga | 0 tkr |
| Borjeson Group AB | Åkersberga | 0 tkr |
| Bosona Innovation AB | Åkersberga | 0 tkr |
| Botefast AB | Åkersberga | 0 tkr |
| Botevik Holding AB | Åkersberga | 0 tkr |
| Brain Pal AB | Åkersberga | 0 tkr |
| Brännbacken Industriföretag AB | Hägersten | 0 tkr |
| Brännharan Holding AB | Åkersberga | 0 tkr |
| Bredbild Holding AB | Åkersberga | 0 tkr |
| Bröderna M & G Sjöström Aktiebolag | Åkersberga | 0 tkr |
| Brunstedt Holding AB | Åkersberga | 0 tkr |
| BRW Invest AB | Kurravaara | 0 tkr |
| Bubo & Lynx AB | Åkersberga | 0 tkr |
| Building Science Group Nordic AB | Åkersberga | 0 tkr |
| Bygghem Sverige Fastighets AB | Åkersberga | 0 tkr |
| ByggKompetens Stockholm AB | Åkersberga | 0 tkr |
| BYMAKO Bygg & Markkonsult Aktiebolag | Stockholm | 0 tkr |
| By T Forever AB | Åkersberga | 0 tkr |
| CA Bostäder Holding AB | Åkersberga | 0 tkr |
| Caeli Properties AB | Åkersberga | 0 tkr |
| Cajah Konsult AB | Åkersberga | 0 tkr |
| Calla 79 AB | Åkersberga | 0 tkr |
| Cambra Consulting AB | Åkersberga | 0 tkr |
| Canriks EL & Kraft AB | Åkersberga | 0 tkr |
| Cantender Aktiebolag | Åkersberga | 0 tkr |
| Carat Consult AB | Åkersberga | 0 tkr |
| Cardboard Empire AB | Åkersberga | 0 tkr |
| Carve 3:240 AB | Åkersberga | 0 tkr |