| BikeMeNow AB | Nacka Strand | 0 tkr |
| Bilskadeservice i Nacka Holding AB | Saltsjö-Boo | 0 tkr |
| Bintebo Design AB | Ingarö | 0 tkr |
| BioAll AB | Nacka | 0 tkr |
| Biofuture Scandinavia AB | Stockholm | 0 tkr |
| Bioviva AB | Stockholm | 0 tkr |
| Biozoul AB | Saltsjöbaden | 0 tkr |
| BIRAN Aktiebolag | Saltsjöbaden | 0 tkr |
| Birdnest Advice AB | Nacka | 0 tkr |
| Birdnest Invest AB | Nacka | 0 tkr |
| Birds & Anemones AB | Stockholm | 0 tkr |
| Birgers Marinteknik Aktiebolag | Flen | 0 tkr |
| Birgitta Strömberg Sales & Marketing AB | Stockholm | 0 tkr |
| Birk Recruitment & HR AB | Älta | 0 tkr |
| BizLab Group AB | Lidingö | 0 tkr |
| BizStrat AB | Saltsjö-Boo | 0 tkr |
| Björklund Marine Consulting AB | Saltsjö-Boo | 0 tkr |
| Björknäs 1:112 AB | Stockholm | 0 tkr |
| Björknoff Holding AB | Nacka | 0 tkr |
| Björn Christensson Konsult AB | Nacka | 0 tkr |
| BJÖRN ELOWSSON AB | Stockholm | 0 tkr |
| Björnviken Fastighets AB | Saltsjö-Boo | 0 tkr |
| BK Lifestyle AB | Saltsjöbaden | 0 tkr |
| Blackflower Group AB | Tyresö | 0 tkr |
| Blackstock AB | Vega | 0 tkr |
| Blåvind AB | Saltsjöbaden | 0 tkr |
| BLBK konsulter AB | Nacka | 0 tkr |
| BL Förvaltning Lamab AB | Saltsjö-Boo | 0 tkr |
| B-link Competence AB | Nacka | 0 tkr |
| Blockpearl AB | Älta | 0 tkr |
| Blomqvist Konsulttjänster AB | Nacka | 0 tkr |
| Blooming Advisory AB | Saltsjöbaden | 0 tkr |
| Blue Adriatic Group AB | Nacka | 0 tkr |
| Bly AB | Jönåker | 0 tkr |
| BMM Invest AB | Älta | 0 tkr |
| BMO Iwar Holdings AB | Stockholm | 0 tkr |
| Bo Ahlberg Konsult AB | Nacka | 0 tkr |
| Board and Management Öjvind Norberg Aktiebolag | Saltsjöbaden | 0 tkr |
| Bobrycka Invest AB | Nacka | 0 tkr |
| Bobutik Sickla AB | Älta | 0 tkr |
| Bodil Karlsson AB | Nacka | 0 tkr |
| Bodil Sjöberg AB | Nacka Strand | 0 tkr |
| Bodvar Nordic AB | Älta | 0 tkr |
| Boendekvalité i Sverige AB | Stockholm | 0 tkr |
| Bofbiz AB | Saltsjö-Boo | 0 tkr |
| Bolaget Madeleine Gröndahl AB | Nacka | 0 tkr |
| BOLEDO KONSULT Aktiebolag | Älta | 0 tkr |
| Bolmstedt Journalistik AB | Saltsjö-Boo | 0 tkr |
| Boltzius Förvaltning AB | Nacka | 0 tkr |
| Bo Lundström Narkoskonsult AB | Nacka | 0 tkr |