| Business | Phone |
| Arcadis Geraghty & Miller Inc 2754 Compass Dr # 360, Grand Junction 81506 | (970) 263-9345 |
| Black Crown Rod Kustom Engrg 2460 I-70 Business Loop, Grand Junction 81501 | (970) 245-1830 |
| Klh Engineering Corp 2516 Foresight Cir, Grand Junction 81505 | (970) 242-1835 |
| W G Zimmerman Engineering Inc 359 Colorado Ave # 203, Grand Junction 81501 | (970) 241-2028 |