| Business | Phone |
| Arizona Engineering Co 419 N San Francisco St, Flagstaff 86001 | (928) 774-7179 |
| Aztech Design Inc 210 N Park St # 3, Flagstaff 86001 | (928) 774-4409 |
| Civil Design & Engineering Inc 3900 E Route 66 # 8, Flagstaff 86004 | (928) 522-9287 |
| Coconino Engineering 2708 N 4th St # A-1, Flagstaff 86004 | (928) 527-1008 |
| Crysler Engineering 2655 E Matterhorn Dr, Flagstaff 86004 | (928) 526-6378 |
| Engineering & Environmental 405 N Beaver St # 7, Flagstaff 86001 | (928) 779-4505 |
| High Desert Engineering Inc Po Box 6, Flagstaff 86002 | (928) 213-9515 |
| Mogollon Engineering & Srvyng 411 W Santa Fe Ave, Flagstaff 86001 | (928) 214-0214 |
| Plateau Engineering 202 E Birch Ave, Flagstaff 86001 | (928) 556-0311 |
| Richards Engineering 200 S Leroux St # 202, Flagstaff 86001 | (928) 774-3780 |
| Shephard Wesnitzer Inc 110 W Dale Ave # 1, Flagstaff 86001 | (928) 773-0354 |
| Turner Engineering Inc 528 W Aspen Ave, Flagstaff 86001 | (928) 779-1814 |
| Woodson Engineering & Survey 124 N Elden St # 100, Flagstaff 86001 | (928) 774-4636 |