| Name | Address | City | ST | Postal | Phone | FAX | Email |
| 71 CONSTRUCTION | 7072 BARTON DR. | CASPER | WY | 82604 | (307)235-2922 | | estimators@71construction.com |
| AVAIL VALLEY CONSTRUCTION-WY, LLC | PO BOX 729 | AFTON | WY | 83110 | (307)885-0600 | | scott@availvalley.com;begbert@availvalley.com;clay@availvalley.com;estimate@availvalley.com |
| BITUMINOUS PAVING, INC. | PO BOX 6 | ORTONVILLE | MN | 56278 | (320)273-2113 | | billb@bpimn.com |
| CENTURY COMPANIES, INC. | 510 1ST AVE N | LEWISTOWN | MT | 59457 | (406)535-1200 | | estimating@centuryci.com |
| INDUSTRIAL BUILDERS, INC. | 1307 COUNTY RD 17 NORTH | FARGO | ND | 58078 | (701)282-4977 | | brian@industrialbuilders.com;chanson@industrialbuilders.com |
| INTERMOUNTAIN SLURRY SEAL, INC. | 1000 N. WARM SPRINGS | SALT LAKE CITY | UT | 84116 | (831)724-1001 | | isabel.barron@gcinc.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 |
| MCGARVIN-MOBERLY CONSTRUCTION CO. | 1001 HWY 20 NORTH | WORLAND | WY | 82401 | (307)347-4268 | | e.skretteberg@mcgarvinmoberly.com |
| MOUNTAIN CONSTRUCTION COMPANY | 25 W 10TH ST. | LOVELL | WY | 82431 | (307)548-7186 | | estimating@mountainconstruction.net;kim@mountainconstruction.net |
| P & E PAINTING AND LEAD REMOVAL | 250 4TH STREET | FRANNIE | WY | 82423 | (307)664-2248 | | p_e.painting@yahoo.com |
| RIVERSIDE CONTRACTING, INC. | 5571 ALLOY SOUTH | MISSOULA | MT | 59808 | (406)721-9267 | | ddevous@riversidecontracting.com;kgkaufman@riversidecontracting.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 |