| Northern Arapaho Enterprise 2 | Public Administration | $2,568,972 | $2,601,911 | 240 | N/A |  Research |
| Wind River Family and Community Health Care | Public Administration | $2,378,026 | $2,404,934 | 308 | N/A | Research |
| Wind River Casino | Public Administration | $2,027,015 | $1,920,599 | 245 | N/A | Research |
| Northern Arapaho Enterprise 2 | Accommodation and Food Services | $2,000,000 | $2,020,603 | 425 | $132.9M | Research |
| Intermountain Electric Service INC | Construction | $1,243,430 | $1,251,299 | 67 | $22.0M | Research |
| United Energy Workers Healthcare, Corp | Health Care and Social Assistance | $1,232,900 | $1,242,155 | 148 | $25.3M | Research |
| Community Entry Services | Health Care and Social Assistance | $1,127,280 | $1,133,457 | 145 | N/A | Research |
| Intermountain Electric Service INC | Construction | $1,106,930 | $1,116,362 | 177 | $58.2M | Research |
| High Plains Power Inc. | Utilities | $1,065,174 | $1,038,103 | 48 | N/A | Research |
| High Plains Power, INC | Utilities | $1,065,100 | $1,071,812 | 45 | N/A | Research |
| M & M Well Service LLC | Mining, Quarrying, and Oil and Gas Extraction | $996,177 | $1,005,238 | 35 | <$5M | Research |
| M&m Well Service | Mining, Quarrying, and Oil and Gas Extraction | $912,875 | $919,903 | 45 | <$5M | Research |
| Inberg Surveying Company INC | Professional, Scientific, and Technical Services | $872,387 | $877,646 | 54 | $6.7M | Research |
| Bailey Enterprises Inc. | Retail Trade | $777,332 | $782,827 | 100 | $25.0M | Research |
| Fremount Therapy Group | Health Care and Social Assistance | $729,582 | $734,239 | 54 | $14.6M | Research |
| Nucor, INC | Mining, Quarrying, and Oil and Gas Extraction | $709,468 | $714,152 | 60 | <$5M | Research |
| Wrangler Well Service | Mining, Quarrying, and Oil and Gas Extraction | $610,531 | $615,449 | 27 | <$5M | Research |
| Wrangler Well Service INC | Mining, Quarrying, and Oil and Gas Extraction | $610,530 | $615,983 | 27 | <$5M | Research |
| Bt Incorporated | Transportation and Warehousing | $569,428 | $573,578 | 44 | $11.7M | Research |
| Wind River Oilfield Service INC | Mining, Quarrying, and Oil and Gas Extraction | $397,000 | $399,317 | 28 | <$5M | Research |
| Fremont Motor Riverton, INC | Retail Trade | $380,800 | $383,318 | 43 | $10.8M | Research |
| Turf Care USA INC | Administrative and Support and Waste Management | $355,840 | $349,249 | 19 | <$5M | Research |
| Fremont Motor Lander, INC | Retail Trade | $339,600 | $341,845 | 43 | $10.8M | Research |
| Riverton Tire and Oil Co. Inc. | Retail Trade | $329,529 | $332,274 | 30 | $8.1M | Research |
| Turf Care USA INC | Administrative and Support and Waste Management | $322,700 | $326,351 | 34 | $7.4M | Research |