| BlockchainNZ | |
| Blue House Computing Ltd | Gisborne |
| Blue Penguin IP | |
| BlueFusion | Canterbury |
| Blueprint Ltd | Canterbury |
| Blueriver Creative | Auckland |
| Bluespark interactive | Auckland |
| BMAC Computer Services | Auckland |
| Bocapa Web Solutions | Auckland |
| Boost | Wellington |
| Boost Website Design NZ | Manawatu-Wanganui |
| Born Digital | Auckland |
| Bounce Marketing Nelson | Nelson |
| Bowen Web Design | Otago |
| Bowenvale Communications | Canterbury |
| Brainworks New Zealand Ltd | Auckland |
| Brantas Ltd | Auckland |
| Breedveld Enterprises Ltd | Taranaki |
| Bridgewest Ventures NZ | |
| Bring Your Own Laptop | Auckland |
| Broadband Compare | Auckland |
| Broadcast M.A.P. Ltd | Auckland |
| Brother International NZ Ltd | Bay of Plenty |
| Brush Technology | Canterbury |
| Brycom Data Ltd | Auckland |
| BRYTE | Auckland |
| BSM Digital | Auckland |
| BSML | Wellington |
| Budget Hosting | Nelson |
| Business Applications Ltd | Gisborne |
| Business IT | Canterbury |
| Business IT Solutions Ltd | Canterbury |
| Business Mentors New Zealand | Auckland |
| Business South, Inc. | Otago |
| Business technology group | Auckland |
| Business Toolbox | Auckland |
| Business Website Group | Auckland |
| Butler TechSense Ltd | |
| Buywebhosting.net | Auckland |
| Buzz dot net | Wellington |
| BYTE Computer and Software Ltd | Canterbury |
| Byte Media | Auckland |
| byWeb Design | Wellington |
| Cablecraft | Canterbury |
| Cablemax Ltd | Auckland |
| Cables Direct | Canterbury |
| Cackle Telecommunications | Auckland |
| Cactus Software Ltd | Nelson |
| Cactuslab | Auckland |
| CADMethods Ltd | Auckland |