| 2B Connected - Christchurch | 30 |
| +64 Fitness - Christchurch | 8 |
| Abley - Christchurch - Christchurch | 35 |
| Absolute IT - Christchurch | 4 |
| Action Bicycle Club - Christchurch | 3 |
| Adventure South NZ - Christchurch | 10 |
| AECOM Christchurch - Christchurch | 105 |
| AgResearch Lincoln - Christchurch | 218 |
| Ainger Tomlin Ltd - Christchurch | 24 |
| Airways Corporation NZ (ACNZ) - Christchurch | 878 |
| Akaroa Area School - Christchurch | 20 |
| Alliance Power and Data (Global) - Christchurch - Christchurch | 1 |
| Allied Telesis Labs - Christchurch | 179 |
| Allprint - Christchurch | 7 |
| Antarctica NZ - Christchurch | 76 |
| ANZCO Foods - Christchurch | 3000 |
| Ao Tawhiti Unlimited Discovery - Christchurch | 66 |
| Aotea - Canterbury Office - Christchurch | 120 |
| Apollo Projects - New Zealand - Christchurch | 80 |
| Aqualinc Research Ltd - Christchurch | 19 |
| Ara - Christchurch | 1385 |
| Aranz Medical Limited - Christchurch | 25 |
| Architectus - Christchurch - Christchurch | 13 |
| Arvida Ilam - Christchurch - Christchurch | 136 |
| Arvida (NZ) - Good Friends - Christchurch | 18 |
