| Business | Phone |
| Ace Consultants Inc 4755 Sw Watson Ave # 200, Beaverton 97005 | (503) 626-2320 |
| Washington Group Intl 13550 Sw Karl Braun Dr, Beaverton 97077 | (503) 641-5529 |
| Tr Miles Technical Consultants Beaverton 97005 | (503) 646-4406 |
| Squier Kleinfelder Llc 15050 Sw Koll Pkwy # L, Beaverton 97006 | (503) 635-4419 |
| Corbin Consulting 20595 Sw Tualatin Valley Hwy, Beaverton 97006 | (503) 356-8344 |
| Encodex Technologies Inc 1800 Nw 169th Pl # A250, Beaverton 97006 | (503) 690-8772 |
| Endeavor Engineering 91 Sw 212th Ave, Beaverton 97006 | (503) 645-6636 |
| Gri Geotechnical Resources Inc 9725 Sw Beaverton Hillsdale, Beaverton 97005 | (503) 641-3478 |
| Moving Pixel Co 4905 Sw Griffith Dr # 100, Beaverton 97005 | (503) 626-9663 |
| Hein Consulting Group 16110 Sw Regatta Ln, Beaverton 97006 | (503) 629-8742 |
| J D Walker Consulting Inc 2287 Nw 161st Pl, Beaverton 97006 | (503) 690-9823 |