| Name | Address | City | ST | Postal | Phone | FAX | Email |
| 71 CONSTRUCTION | 7072 BARTON DR. | CASPER | WY | 82604 | (307)235-2922 | | estimators@71construction.com |
| CASPER ELECTRIC, INC. | 3150 E. YELLOWSTONE HWY. | CASPER | WY | 82609 | (307)237-3003 | | casperelectric@casperelectric.biz;Ryan@casperelectric.biz |
| MODERN ELECTRIC CO. | 246 W 1ST STREET | CASPER | WY | 82601 | (307)266-1711 | | gvignaroli@modern-electric.com;twalters@modern-electric.com |
| OFTEDAL CONSTRUCTION, INC. | 2376 SEVEN MILE RD. | CASPER | WY | 82604 | (307)237-4499 | | estimating@oftedalconstruction.com;kbacklund@oftedalconstruction.com |
| W.W. CLYDE & CO. | 869 N. 1500 W. | OREM | UT | 84057 | (303)790-9100 | | estimatingwwcgp@wwclyde.net |
| WESCOM INC. | 1209 ENERGY ST. | GILLETTE | WY | 82716 | (307)660-9473 | | tiffany.massie@wescominc.com |
| WESTERN MUNICIPAL CONSTRUCTION OF WYOMING, INC. | 6756 WEST URANIUM ROAD | CASPER | WY | 82604 | (307)234-6445 | | chedquist@wmc-i.com |
| ZAK DIRT, INC. | 14290 HILLTOP RD. | LONGMONT | CO | 80504 | (970)535-4657 | | dsewczak@zakdirt.com;jweiss@zakdirt.com |