| Astonish Me Creative | |
| Astrix Astronautics | Auckland |
| Astrolab | Auckland |
| Astronaut Digital | |
| Astronort Ltd | |
| Astute Software Products Ltd | Nelson |
| Athena X Ventures | Auckland |
| Atlas Gentech (NZ) Ltd | Auckland |
| ATMC New Zealand | |
| Atomic.io Ltd | Wellington |
| AtomicWeb | |
| Atria | |
| Auckland Institute of Studies | |
| Auckland University of Technology | Auckland |
| Augen Software Group | Auckland |
| Auldhouse | Auckland |
| Aura Ihformation Security | Wellington |
| Aurora Design Ltd | Auckland |
| Austin Digital | Auckland |
| Authsignal | Auckland |
| Automation Creation Ltd | Waikato |
| Automation Systems Ltd | Auckland |
| Automotive computer services | Auckland |
| Avant Global Ltd | |
| Avasa | |
| Avatar Ltd | Canterbury |
| Avela Design | |
| Avenue Content | |
| Aviation Security Service | |
| Avoca Web Design | |
| Avtrix Software Solutions | |
| Awdon Technologies | |
| Axos Systems Ltd | Wellington |
| Ayone Computers Ltd | Auckland |
| Azora Biosciences | |
| Aztech Solutions Ltd | Auckland |
| Babelscribe.com | Marlborough |
| Back9 Creative Studio | |
| Bad Company Ltd | Bay of Plenty |
| Baden Electronic Services Ltd | Auckland |
| Baker Tilly Staples | |
| Baksoft Group | Waikato |
| Banzpay | Auckland |
| Barcode Products Ltd | Auckland |
| BarNet Internet | Auckland |
| Barron’s Equipment Rental Ltd | Auckland |
| Basis Developments Ltd | |
| Bay Software Solutions | Hawke's Bay |
| BayCity Communications | Canterbury |
| BayCity Communications Ltd | Canterbury |