| #1 | Barnard Construction Company, Incorporated UEI LEGGW1TNMVC9 | 21 | $3.9B |
| #2 | Bfbc LLC UEI PTZXAS7WKA23 | 9 | $1.8B |
| #3 | Barnard Spencer Joint Venture UEI US79M57E8DT9 | 6 | $1.1B |
| #4 | Nw Construction, INC UEI SNSLU2QXJ7Z5 | 13 | $697M |
| #5 | S & K Aerospace, LLC UEI WVJKC2L1ZN11 | 1,479 | $625M |
| #6 | Neptune Aviation Services, INC. UEI XL62ZMCVAJQ7 | 2,689 | $522M |
| #7 | Billings Flying Service LLC UEI MN1JM9GARHC5 | 202 | $261M |
| #8 | Bridger Air Tanker LLC UEI J8MRKB47KE59 | 224 | $240M |
| #9 | Torrent Technologies, INC. UEI W69TCJPDDLZ7 | 12 | $229M |
| #10 | Integrated Security Solutions INC UEI YWLLJBHSE9A4 | 209 | $168M |
| #11 | Tnl Sales LLC UEI XKR3GNB5ZJL1 | 23,092 | $151M |
| #12 | S & K Federal Services LLC UEI UJEMQV9EG186 | 481 | $138M |
| #13 | Dj&a, P.C. UEI ET9MWK3PM4U6 | 894 | $136M |
| #14 | Swank Enterprises UEI PJUXUM1DNHN3 | 6 | $128M |
| #15 | University Of Montana UEI DAY7Z8ZD48Q3 | 130 | $127M |
| #16 | Oftedal Construction, INC. UEI EMQCFUC4MZM5 | 11 | $121M |
| #17 | International Towers LLC UEI WS1FVH27LE48 | 29 | $110M |
| #18 | S & K Security Group LLC UEI J2GPEJQ1TYG7 | 33 | $108M |
| #19 | Yellowstone Electric CO UEI LEHSN1CSKMD9 | 35 | $102M |
| #20 | Big Sky Mobile Catering Corp UEI KMURZEFH3188 | 185 | $102M |
| #21 | 2101 LLC UEI NFVPVM21BYC5 | 299 | $93M |
| #22 | S&k Engineering And Research, LLC UEI QUJXWLY1RMP1 | 45 | $92M |
| #23 | S&k Mission Support, LLC UEI L4JMY6LBJMF4 | 30 | $88M |
| #24 | Nomad Global Communication Solutions, Incorporated UEI ESY3CTEH56A7 | 142 | $84M |
| #25 | Montana State University UEI EJ3UF7TK8RT5 | 84 | $74M |
| #26 | Missouri River Contractors, LLC UEI HAYCE9S7YYX3 | 9 | $73M |
| #27 | Central Copters, INC. UEI GT9BE29MJUK4 | 81 | $73M |
| #28 | S & K Global Solutions LLC UEI F17EVN9J5WJ5 | 66 | $72M |
| #29 | James Talcott Construction, INC. UEI KR5GU7KUBPY4 | 40 | $58M |
| #30 | Century Companies, INC. UEI GLJMLMKQVWZ7 | 30 | $58M |
| #31 | New Frontier Aviation, INC UEI Q9L7LZZVP974 | 48 | $58M |
| #32 | A2Z Supply Corp UEI ZYNHBEFLQBP6 | 1,912 | $57M |
| #33 | Price Contracting INC UEI KXVHR7Z986H3 | 201 | $57M |
| #34 | Greenway Enterprises INC UEI J1JTZVVV2KM1 | 61 | $55M |
| #35 | Minuteman Aviation INC UEI JRW6FSHD24S3 | 275 | $53M |
| #36 | S2 Corporation UEI RDHFJLPB1M33 | 10 | $53M |
| #37 | Jackson Contractor Group INC UEI D8A6W681LYK1 | 104 | $52M |
| #38 | S & K Logistics Services LLC UEI W9B4NSG9B7K9 | 519 | $51M |
| #39 | Mono Machines LLC UEI C4S6Z1ALKEP1 | 83,973 | $50M |
| #40 | Shumaker Trucking & Excavating Contractors, INC. UEI NVLXJJLW1933 | 38 | $50M |
| #41 | Uavionix Corp UEI ZCLLVD4F5CL6 | 11 | $45M |
| #42 | Wadsworth Builders CO INC UEI N5Y9S2A4MU19 | 52 | $43M |
| #43 | National Flood Services LLC UEI F13NVSPRNXD7 | 8 | $41M |
| #44 | M.k. Weeden Construction, INC. UEI V9JQQAV3MX84 | 8 | $33M |
| #45 | Outback Firefighting, INC. UEI KL1DWRB3HWE5 | 793 | $32M |
| #46 | Robert Peccia & Associates, INC. UEI JYVKDP2K3KH5 | 237 | $32M |
| #47 | Cm Manufacturing INC UEI CSPNXNNAVQW4 | 1,554 | $32M |
| #48 | Lapke Construction, LLC. UEI EJ5JRBABLMJ7 | 127 | $31M |
| #49 | Wilderness Medics, INC. UEI QD8GCZEHLK39 | 856 | $30M |
| #50 | Montcal LLC UEI TWCMZGLK5HH3 | 12 | $30M |