| Name | Address | City | ST | Postal | Phone | FAX | Email |
| 71 CONSTRUCTION | 7072 BARTON DR. | CASPER | WY | 82604 | (307)235-2922 | | estimators@71construction.com |
| BARNUM, INC. | 183 US HIGHWAY 16 EAST | BUFFALO | WY | 82834 | (307)684-5365 | | jerrica@barnuminc.com;wendi@barnuminc.com |
| CASPER ELECTRIC, INC. | 3150 E. YELLOWSTONE HWY. | CASPER | WY | 82609 | (307)237-3003 | | casperelectric@casperelectric.biz;Ryan@casperelectric.biz |
| ENGINEERED CONCRETE PRODUCTS, LLC | 3335 SEGER DR | RAPID CITY | SD | 57701 | (605)415-8877 | | william@ecpcompany.com |
| JTL GROUP, INC. DBA KNIFE RIVER | PO BOX 20150 | CHEYENNE | WY | 82007 | (307)634-5455 | | kelly.churchill@kniferiver.com;ryan.drake@kniferiver.com;phillip.ostrander@kniferiver.com;carolyn.vasquez@kniferiver.com;samuel.colley@kniferiver.com;kevin.hoff@kniferiver.com |
| KEYHOLE TECHNOLOGIES, LLC | 5700 W. POISON SPIDER ROAD | CASPER | WY | 82604 | (307)472-2103 | | estimating@keyholetech.com |
| MIKE COLEMAN CONSTRUCTION, INC. | 225 EAGLE DRIVE | DILLON | MT | 59725 | (406)683-3489 | | mcolemanconstruction@gmail.com |
| 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 |
| P & E PAINTING AND LEAD REMOVAL | 250 4TH STREET | FRANNIE | WY | 82423 | (307)664-2248 | | p_e.painting@yahoo.com |
| REIMAN CORP. | 2400 W. COLLEGE DR. | CHEYENNE | WY | 82007 | (307)632-8971 | | rbolkovatz@reimancorp.com;contracts@reimancorp.com |
| S & S BUILDERS, LLC | 400 ENTERPRISE AVE. | GILLETTE | WY | 82716 | (307)686-5659 | | estimating@ssbuildersllc.com;jlcalderon@ssbuildersllc.com;dhippen@ssbuildersllc.com |
| S&L INDUSTRIAL LLC | 675 ROAD 7-1/2 | COWLEY | WY | 82420 | (307)548-2242 | | jennie@wysli.com;casey@wysli.com;barb@wysli.com |
| SLATON BROS INC. | 3033 S PARKER RD #1150 | AURORA | CO | 80014 | (720)925-1482 | | john.petros@slatonbros.com |
| UNIVERSAL INDUSTRIAL SALES | 433 NORTH 1030 WEST | LINDON | UT | 84042 | (801)701-1195 | | uisutah@gmail.com |