| Business | Phone |
| Sub-Arctic Surveys Ltd 5108a 53 St, Yellowknife X1A 1V6 | (867) 873-2047 |
| Hiw Surveys Ltd 5204 50 Ave #201, Yellowknife X1A 1E2 | (867) 873-2092 |
| Ollerhead & Assoc Ltd 5023 49th St #2, Yellowknife X1A 2N8 | (867) 873-9690 |
| Tgit Geomatics Ltd 5016 50th Ave #101, Yellowknife X1A 2N2 | (867) 873-8448 |