| Business | Phone |
| Pickett Engineering Inc 808 8th St, Greeley 80631 | (970) 356-6362 |
| Ketterling Butherus & Norton 820 8th St, Greeley 80631 | (970) 395-9880 |
| Michael Kirkham Consulting 5401 W 10th St, Greeley 80634 | (970) 352-9358 |
| Laube Engineering Llc 6250 W 10th St # 3, Greeley 80634 | (970) 356-3099 |