| Rms Instrument And Electric | 2092064 | 127 | 94 | Interstate |
| Visionary Communications LLC | 4251471 | 87 | 101 | InterstateHazmat |
| Tcri Energy Services INC | 692712 | 57 | 89 | Interstate |
| D R M INC | 316634 | 52 | 43 | Interstate |
| Schulte Ta INC | 863077 | 52 | 32 | Interstate |
| Broken Link Energy LLC | 2514601 | 40 | 14 | InterstateHazmat |
| L And H Industrial INC | 520198 | 38 | 40 | Interstate |
| Black Gold Energy Service LLC | 3211488 | 38 | 46 | Interstate |
| Pluggin Along INC | 1765424 | 36 | 11 | Interstate |
| Black Hawk Crane LLC | 5366930 | 34 | 10 | Interstate |
| Jims Water Service INC | 139071 | 33 | 8 | Interstate |
| Mc Welding Service LLC | 4014804 | 31 | 42 | Interstate |
| Falcon Construction LLC | 4077508 | 31 | 8 | Interstate |
| Wood Wireline Service INC | 910471 | 30 | 42 | InterstateHazmat |
| Hoskinson Contracting LLC | 4120457 | 30 | 15 | InterstateHazmat |
| Great Plains Crew Change Company LLC | 4201124 | 30 | 52 | Interstate |
| Bidell Gas Compression Inc. | 9625208 | 29 | 23 | InterstateHazmat |
| Black Rock Mine Service LLC | 2527337 | 28 | 36 | Interstate |
| Sls West INC | 828185 | 27 | 15 | Interstate |
| Earth Work Solutions | 203107 | 26 | 6 | InterstateHazmat |
| Big Horn Tire | 421710 | 25 | 26 | Interstate |
| Wildcat Hot Oil Service LLC | 3145029 | 25 | 8 | Interstate |
| Extreme Precision Industrial Contractors LLC | 3065160 | 24 | 31 | Interstate |
| Cyclone | 307502 | 22 | 28 | Interstate |
| Power Drive Supply LLC | 2323011 | 22 | 17 | InterstateHazmat |
| Baysinger Trucking | 282888 | 21 | 7 | InterstateHazmat |
| Bidell Gas Compression INC | 3133740 | 21 | 21 | Interstate |
| Water System Drilling INC | 916558 | 20 | 10 | Interstate |
| Gillette Steel Center | 4206479 | 20 | 11 | Interstate |
| D V Pana Merica LLC | 4548495 | 20 | 20 | Interstate |
| Paladin Propane Partners LLC | 567519 | 19 | 16 | IntrastateHazmat |
| S&s Builders LLC | 609916 | 18 | 78 | Intrastate |
| Paintbrush Services | 510196 | 17 | 16 | Interstate |
| Melgaard Construction | 580290 | 17 | 16 | InterstateHazmat |
| Claude's Welding Service INC | 426545 | 16 | 8 | Intrastate |
| M & K Oil Company LLC | 518016 | 16 | 17 | IntrastateHazmat |
| C & H Well Servicing INC | 433803 | 15 | 8 | Intrastate |
| Precision Well Service INC | 650208 | 15 | 13 | Interstate |
| T & T Cranes | 2121926 | 15 | 7 | Interstate |
| Manning Wrecker Service LLC | 643991 | 14 | 4 | Interstate |
| Mcm General Contractors INC | 774424 | 14 | 30 | Interstate |
| G & G Landscaping INC | 1621825 | 14 | 6 | Intrastate |
| Dull Knife Equipment Services LLC | 3272264 | 14 | 13 | Intrastate |
| Equality State Farms LLC | 3866536 | 14 | 5 | Interstate |
| Git R Done Site Services INC | 3102635 | 13 | 5 | Interstate |
| Oedekoven Excavating | 796993 | 12 | 12 | Interstate |
| Igo Oil And Gas Services INC | 964598 | 12 | 5 | InterstateHazmat |
| Torc LLC | 2985145 | 12 | 4 | Interstate |
| Oilfield Repair LLC | 3318344 | 12 | 9 | Intrastate |
| Powder River Construction INC | 1216033 | 11 | 5 | InterstateHazmat |
| Pe Fusion LLC | 1414374 | 11 | 5 | Interstate |
| Northland Power Services LLC | 1549080 | 11 | 9 | Intrastate |
| Butler Field Services LLC | 3969176 | 11 | 3 | Intrastate |
| Blackhawk Crane & Rigging INC | 307675 | 10 | 5 | Interstate |
| Jesse's Disposal Service | 705873 | 10 | 8 | Intrastate |
| Matheson Drilling INC | 719208 | 10 | 10 | Interstate |
| Rr Services LLC | 1798865 | 10 | 12 | Intrastate |
| Dads Truck And Auto | 4020483 | 10 | 3 | InterstateHazmat |
| Heart Of The West Trucking LLC | 4536632 | 10 | 6 | Interstate |
| Ruby Drilling CO INC | 348116 | 9 | 5 | Intrastate |
| Kuhbacher Trucking INC | 811309 | 9 | 4 | Intrastate |
| Silverline Construction LLC | 1846977 | 9 | 9 | InterstateHazmat |
| Maxim Energy Services INC | 4066470 | 9 | 3 | IntrastateHazmat |
| Wyoming Welding & Trucking INC | 177540 | 8 | 10 | Interstate |
| Gilliam Construction LLC | 375606 | 8 | 3 | Intrastate |
| Rebel Testing INC | 467127 | 8 | 8 | Intrastate |
| A1 Drilling INC | 793448 | 8 | 2 | Intrastate |
| Bj Salvage LLC | 1132777 | 8 | 2 | InterstateHazmat |
| Pump Pro INC | 1258094 | 8 | 5 | Intrastate |
| Tj's Services | 1353788 | 8 | 4 | Intrastate |
| Mountain West Commercial Driving Schools Of Wyoming LLC | 1370872 | 8 | 5 | Interstate |
| Bgm Buildings INC | 2534250 | 8 | 9 | InterstateHazmat |
| Wyo Services LLC | 2536217 | 8 | 14 | InterstateHazmat |
| Triple N LLC | 2898515 | 8 | 4 | Intrastate |
| Jg Specialty Welding LLC | 3110329 | 8 | 6 | InterstateHazmat |
| Mile's Towing & Recovery INC | 334873 | 7 | 3 | Intrastate |
| Hladky Construction INC | 970628 | 7 | 5 | Interstate |
| Rjm Energy Services INC | 972298 | 7 | 1 | Intrastate |
| Western Rig Services LLC | 2471911 | 7 | 5 | Intrastate |
| Ace Trucking LLC | 3082665 | 7 | 7 | Intrastate |
| Next Energy Services | 4139971 | 7 | 7 | Intrastate |
| Dads Truck And Auto | 4221964 | 7 | 5 | InterstateHazmat |
| Steadfast Oilfield Services LLC | 4388273 | 7 | 7 | Intrastate |
| Kraken Energy Services LLC | 4486004 | 7 | 6 | Intrastate |
| Bloedorns | 330376 | 6 | 5 | Interstate |
| Hot Iron INC | 436654 | 6 | 5 | IntrastateHazmat |
| Wildcat Welding & Operating INC | 707040 | 6 | 4 | Intrastate |
| Benson Construction INC | 711290 | 6 | 5 | Intrastate |
| Bs Carriers LLC | 908974 | 6 | 5 | Interstate |
| Davis Trucking | 912961 | 6 | 6 | Interstate |
| Grant Well Service INC | 966459 | 6 | 6 | Intrastate |
| Bulldog INC | 971419 | 6 | 5 | Interstate |
| Mechanical Advantage INC | 1032141 | 6 | 4 | Intrastate |
| Omc LLC | 1495735 | 6 | 5 | IntrastateHazmat |
| Triple J Service LLC | 1732327 | 6 | 1 | Intrastate |
| Robinson Grinding & Profiling LLC | 2009299 | 6 | 4 | Interstate |
| Jb Field Service LLC | 2472312 | 6 | 1 | Intrastate |
| Wyogistics LLC | 2870297 | 6 | 10 | Intrastate |
| Dew Water & Well Service LLC | 3451548 | 6 | 3 | Intrastate |
| Navajo Transitional Energy Company | 3524283 | 6 | 16 | Intrastate |