| Baycom Communications | Bay of Plenty |
| BBT Digital | |
| BC Systems Consultancy Ltd | Otago |
| BCS Computer Solutions Ltd | Auckland |
| bdEnergy | |
| Be Seen Online | Auckland |
| BECA | |
| Beck & Caul Ltd | |
| Bell Computers | |
| Belton | Auckland |
| Benge Web | Wellington |
| Bernall Digital Design | Auckland |
| Berry Hill | |
| betaForm.solutions | |
| BetaSolutions | |
| Better Digital | |
| Betterbunch | |
| Beweb | Auckland |
| Beyond Recruitment | Auckland |
| BinaryMist Ltd | |
| Bio-Start Ltd | |
| Biocell Corporation | |
| BioFab | |
| BioLumic Ltd | |
| BioOra Ltd | |
| BioPacific Partners Ltd | |
| Biosouth New Zealand | |
| BioTech New Zealand Association | |
| BioValeo Ltd | |
| BioViros Ltd | |
| Biscom | |
| Bite Creative | |
| BizDojo | |
| BizTalk | |
| Bizweb | Auckland |
| Bizwise Accounting | |
| Black Pearl Mail | Wellington |
| Black Rock Consulting Ltd | Otago |
| Black SANZ Technologies | |
| Black Sheep Creative | |
| Black Sheep Creative Ltd | Waikato |
| Blackball Software | |
| Blackpearl Group Ltd | |
| Blackpepper | Auckland |
| Blis Technologies | |
| Blockchain Funds | Auckland |
| BlockchainNZ | |
| Blue Cloud | |
| Blue House Computing Ltd | Gisborne |
| Blue Penguin IP | |