| Business | Phone |
| Associated Engineering Group 4206 Technology Dr, Modesto 95356 | (209) 545-3390 |
| Oliver E Deatsch 2425 River Rd, Modesto 95351 | (209) 537-9291 |
| Delamare-Fultz 3421 Tully Rd # J, Modesto 95350 | (209) 529-7450 |
| Hawkins & Assoc Engineering 436 Mitchell Rd, Modesto 95354 | (209) 575-4295 |
| Horizon Consulting Svc 900 H St # G1, Modesto 95354 | (209) 491-7620 |
| Inter Mountain Engineering 808 Mcguire Dr, Modesto 95355 | (209) 527-2393 |
| Manuel Sousa Civil Engineering 1006 6th St, Modesto 95354 | (209) 238-3151 |
| Mead & Hunt Inc 1120 6th St # B, Modesto 95354 | (209) 572-1257 |
| Mid-Valley Engineering Inc 1117 L St, Modesto 95354 | (209) 526-4214 |
| Morad Engineering 615 13th St, Modesto 95354 | (209) 530-0570 |
| Northstar Engineering Group 900 H St, Modesto 95354 | (209) 524-3525 |
| O'Dell Engineering 1165 Scenic Dr, Modesto 95350 | (209) 571-1765 |
| Owens Design 2200 Mchenry Ave # C, Modesto 95350 | (209) 522-8031 |
| David O Romano Pe 1020 10th St, Modesto 95354 | (209) 521-9521 |
| Ross G Stephenson Assoc 2801 Coffee Rd # B1, Modesto 95355 | (209) 578-3895 |
| Safeprobe 1507 G St, Modesto 95354 | (209) 577-4135 |
| Thomas Mochizuki Engineering 2909 Zarand Dr, Modesto 95355 | (209) 529-4652 |
| Thompson-Hysell Engineers 1016 12th St, Modesto 95354 | (209) 521-3437 |
| Transpacific Engineering 2200 Crows Landing Rd, Modesto 95358 | (209) 538-2109 |
| Waleed Mari & Assoc 1020 15th St # 22, Modesto 95354 | (209) 521-8786 |
| Wood Rodgers Inc 1012 11th St # 300, Modesto 95354 | (209) 549-7060 |