| Business | Phone |
| Amec 1425 E Apache Park Pl, Tucson 85714 | (520) 573-2045 |
| Brazos Geotech 15150 W Ajo Hwy # 488, Tucson 85735 | (520) 237-0750 |
| Hoque & Assoc 9300 S Wilmot Rd, Tucson 85706 | (520) 664-0576 |
| Speedie & Assoc 3125 E 47th St, Tucson 85713 | (520) 514-9411 |
| Saguaro Geoservices 3319 N Dodge Blvd # A2, Tucson 85716 | (520) 321-4644 |
| Pattison Evanoff Engineering 1129 N Winstel Blvd, Tucson 85716 | (520) 881-1234 |
| Ncs Consultants Llc 1860 E River Rd # 300, Tucson 85718 | (520) 544-2786 |
| Lmt Engineering Inc 180 S Chelsea Park Pl, Tucson 85748 | (520) 885-3344 |
| Kleinfelder 6451 S Country Club Rd # 131, Tucson 85706 | (520) 628-7769 |