| Business | Phone |
| Bickford-Mursell Surveying 1013 W 17th St, Vancouver 98660 | (360) 693-1361 |
| Davis Consulting Group Inc Vancouver 98660 | (360) 699-6192 |
| Dean Surveying Inc 717 Ne 61st St 200, Vancouver 98665 | (360) 892-2600 |
| Hagedorn Inc 1924 Broadway St B, Vancouver 98663 | (360) 696-4428 |
| Holly & Assoc 7014 Nw 25th Ave, Vancouver 98665 | (360) 696-1771 |
| Minister & Glaeser Surveying 2200 E Evergreen Blvd, Vancouver 98661 | (360) 694-3313 |
| Northwest Marine Survey 1221 Se Ellsworth Rd A1, Vancouver 98664 | (360) 253-9813 |