| ROBERTSON DIESEL REPAIR INC | 587556 | EVANSTON | 2 |
| ROBERTSON TRANSPORTATION INC | 908857 | EVANSTON | 4 |
| ROBIN COZAD | 2448229 | CHEYENNE | 3 |
| ROBIN COZAD | 3376271 | CHEYENNE | 1 |
| ROBIN JOHN MOSES | 3210563 | ARMINTO | 3 |
| ROBIN R TAYLOR | 1647660 | DANIEL | 1 |
| ROBIN WILTSHIRE | 725544 | DUBOIS | 1 |
| ROBINSON CONTRACTING INC | 527979 | CASPER | 3 |
| ROBINSON GRINDING & PROFILING LLC | 2009299 | GILLETTE | 6 |
| ROCK CREEK DRILLING INC | 1054132 | CHEYENNE | 6 |
| ROCK CREEK RANCH I LTD | 1930079 | LINGLE | 3 |
| ROCK HOTSHOT SERVICES LLC | 2278180 | DOUGLAS | 1 |
| ROCK LAKE LAND & CATTLE LLC | 2311259 | WHEATLAND | 1 |
| ROCK N XCAVATION LLC | 4491224 | THAYNE | 1 |
| ROCK RENTAL SERVICES LLC | 4416960 | NEWCASTLE | 2 |
| ROCK RIVER LANDSCAPING LLC | 3687706 | CHEYENNE | 4 |
| ROCK RIVER OPERATING INC | 1365850 | MCFADDEN | 5 |
| ROCK SOLID SOLUTIONS AND SERVICES LLC | 4036160 | GILLETTE | 2 |
| ROCK SPRINGS BLOCK CO INC | 722855 | ROCK SPRINGS | 1 |
| ROCK WITH US DELIVERY SERVICE LLC | 4204271 | GILLETTE | 0 |
| ROCKCREEK BUILDERS LLC | 4107199 | LANDER | 1 |
| ROCKET DONKEY EXPRESS LLC | 4484356 | LANDER | 2 |
| ROCKET FUELS INC | 615957 | BIG PINEY | 3 |
| ROCKHARD CONCRETE CONSTRUCTION LLC | 3751214 | LARAMIE | 4 |
| ROCKIN B RANCHES LLC | 3458202 | EVANSVILLE | 0 |
| ROCKIN N | 4315870 | CASPER | 1 |
| ROCKIN W SERVICES LLC | 3411147 | MCKINNON | 2 |
| ROCKIN' A ENTERPRISES LLC | 4311359 | LARAMIE | 1 |
| ROCKING 5J TRUCKING LLC | 4257038 | BURNS | 5 |
| ROCKING BAR W ENT LLC | 3993545 | GUERNSEY | 1 |
| ROCKING D ENTERPRISES LLC | 3901872 | YODER | 2 |
| ROCKING DOUBLE R TRANSPORT LLC | 4443430 | GREEN RIVER | 1 |
| ROCKING E TRUCKING INC | 847889 | LARAMIE | 1 |
| ROCKING K ENTERPRISES LLC | 4328889 | DUBOIS | 2 |
| ROCKING N LLC | 4290530 | CASPER | 1 |
| ROCKING T ENTERPRISES INC | 1348976 | CASPER | 3 |
| ROCKINRD TC LLC | 2164464 | CODY | 15 |
| ROCKY MOUNTAIN AGRONOMY CENTER LLC | 927226 | RIVERTON | 8 |
| ROCKY MOUNTAIN BRAKE SUPPLY INC | 536796 | CASPER | 3 |
| ROCKY MOUNTAIN DIRT WORKS INC | 1299123 | CHEYENNE | 1 |
| ROCKY MOUNTAIN EQUIPMENT BROKERS INC | 2081888 | BUFFALO | 4 |
| ROCKY MOUNTAIN ERECTORS LLC | 1547744 | CASPER | 2 |
| ROCKY MOUNTAIN FREIGHT INC | 4145395 | CASPER | 6 |
| ROCKY MOUNTAIN LINE SYSTEMS INC | 855519 | LANDER | 6 |
| ROCKY MOUNTAIN LOGISTICS INC | 1552368 | RIVERTON | 14 |
| ROCKY MOUNTAIN OILFIELD SERVICES INC | 2093084 | POWELL | 4 |
| ROCKY MOUNTAIN OILFIELD WAREHOUSE | 2493138 | CASPER | 1 |
| ROCKY MOUNTAIN RE-VEG LLC | 2347205 | NEWCASTLE | 4 |
| ROCKY MOUNTAIN RECLAMATION LLC | 326113 | LARAMIE | 17 |
| ROCKY MOUNTAIN RIG COMPANY LLC | 1622280 | GILLETTE | 1 |
| ROCKY MOUNTAIN SAND AND GRAVEL LLC | 3078688 | CHEYENNE | 3 |
| ROCKY MOUNTAIN SNOWMOBILE TOURS INC | 987274 | JACKSON | 8 |
| ROCKY MOUNTAIN SOUND & LIGHT LLC | 4075490 | CASPER | 4 |
| ROCKY MOUNTAIN SURFACES | 4211978 | LOVELL | 4 |
| ROCKY MOUNTAIN TESTERS LLC | 3136142 | CASPER | 3 |
| ROCKY MOUNTAIN TOWING INC | 581755 | CHEYENNE | 2 |
| ROCKY MOUNTAIN WEED CONTROL | 2500172 | CASPER | 4 |
| ROCKY MOUNTAIN WINDOW DISTRIBUTORS, INC. | 8671062 | EVANSVILLE | 20 |
| ROCKY MTN APPLICATORS INC | 1849651 | RIVERTON | 1 |
| ROCKY ROAD ASPHALT INC | 2024151 | ROCK SPRINGS | 3 |
| ROCO INC | 693859 | SHERIDAN | 3 |
| ROD DOWDING INC | 1446212 | NEWCASTLE | 1 |
| ROD MINES RECLAMATION INC | 995185 | FARSON | 1 |
| ROD'S BACKHOE SERVICE INC | 823955 | SARATOGA | 7 |
| ROD'S EXCAVATING SERVICE, INC. | 8759757 | THERMOPOLIS | 4 |
| RODDY HUPP | 2917693 | SUNDANCE | 1 |
| RODGER MORGAN | 1086015 | SAVERY | 1 |
| RODGERS TRUCKING LLC | 4014060 | GILLETTE | 1 |
| RODNEY A TRUMBLE | 722429 | BIG PINEY | 1 |
| RODNEY BECKER | 4487080 | POWELL | 1 |
| RODNEY HAMILTON | 3345216 | BIG PINEY | 2 |
| RODNEY ROBERTSON | 1253729 | ROCK SPRINGS | 1 |
| RODRIGUEZ CASTRO TRANSPORT LLC | 4543107 | SHERIDAN | 1 |
| RODRIGUEZ COLD CHAIN LLC | 4571556 | CHEYENNE | 3 |
| RODRIGUEZ FARMS | 1544131 | POWELL | 11 |
| ROGER ALLEN KOCH | 2511646 | NEWCASTLE | 1 |
| ROGER B ROWE | 2118983 | WHEATLAND | 1 |
| ROGER CHESHIER | 4578144 | HULETT | 4 |
| ROGER D PRINCE & CAROLYN SHIELDS | 1223441 | CASPER | 2 |
| ROGER J MALSON | 725114 | EDGERTON | 1 |
| ROGER MALLI | 340375 | SHENDON | 0 |
| ROGER MAXSON | 433811 | RIVERTON | 1 |
| ROGER NELSON | 719218 | WHEATLAND | 1 |
| ROGER SENN | 1766423 | DEAVER | 2 |
| ROGER SMITH | 1482443 | POWELL | 1 |
| ROGER W LEONARD | 2190370 | CASPER | 1 |
| ROGER WILLIAM FREOUF | 443861 | LINGLE | 2 |
| ROGER-THAT LOGISTICS & FREIGHT LLC | 3664485 | CASPER | 2 |
| ROGERS RANCH & TRUCKING LLC | 2554882 | BOULDER | 1 |
| ROJAZ TRUCKING LLC | 1674589 | PINEDALE | 2 |
| ROLLIN ALONG LLC | 2958089 | ROZET | 2 |
| ROLLIN COAL TRUCKING LLC | 4392131 | GILLETTE | 1 |
| ROLLING 307 LLC | 4276379 | GILLETTE | 1 |
| ROLLING HILLS TRUCKING INC | 278795 | WORLAND | 9 |
| ROLLING T LIVESTOCK INC | 2459066 | POWELL | 1 |
| ROLLING THUNDER RANCH LLC | 2896153 | BONDURANT | 1 |
| ROLLNROCK TRUCKING LLC | 2310943 | CHEYENNE | 3 |
| ROLLOUT EXPRESS LLC | 4543559 | CHEYENNE | 2 |
| ROLO EXPRESS LLC | 4063915 | RIVERTON | 1 |
| ROMSA FARMS LLC | 2782204 | CHEYENNE | 1 |