| All Native Managed Services Company | Professional, Scientific, and Technical Services | $8,697,789 | $8,211,049 | 355 | $36.7M |  Research |
| Hci Management Services Company | Professional, Scientific, and Technical Services | $5,362,747 | $5,041,790 | 280 | $29.0M | Research |
| Winnebago Tribe of Nebraska | Health Care and Social Assistance | $2,373,700 | $2,400,998 | 218 | N/A | Research |
| All Native Shared Services Company | Public Administration | $1,206,633 | $1,134,723 | 53 | N/A | Research |
| All Native INC | Public Administration | $907,740 | $855,303 | 46 | N/A | Research |
| Flatwater Inc. | Public Administration | $905,591 | $856,670 | 52 | N/A | Research |
| Ho-Chunk Corporate Services Company | Professional, Scientific, and Technical Services | $856,069 | $810,133 | 58 | $6.0M | Research |
| All Native Inc. | Administrative and Support and Waste Management | $686,404 | $690,805 | 38 | $6.0M | Research |
| Hci Construction Copmany | Construction | $650,700 | $658,328 | 44 | $50.1M | Research |
| Little Priest Tribal College | Educational Services | $478,000 | $274,672 | 43 | N/A | Research |
| Blue Earth Marketing Company | Professional, Scientific, and Technical Services | $341,347 | $343,012 | 19 | <$5M | Research |
| Protege Health Services LLC | Professional, Scientific, and Technical Services | $309,883 | $311,148 | 16 | <$5M | Research |
| Ho-Chunk, Inc. | Construction | $307,915 | $281,770 | 11 | $12.5M | Research |
| Blue Earth Marketing Company | Professional, Scientific, and Technical Services | $304,558 | $284,686 | 14 | <$5M | Research |
| Carl Tollefson | Real Estate and Rental and Leasing | $271,249 | $257,069 | 23 | <$5M | Research |
| All Native Systems LLC | Public Administration | $254,440 | $230,519 | 9 | N/A | Research |
| All Native Systems LLC | Professional, Scientific, and Technical Services | $241,964 | $243,144 | 11 | <$5M | Research |
| Hci Heritage Express Company | Retail Trade | $236,362 | $222,577 | 34 | $11.4M | Research |
| Flatwater Solutions Company | Real Estate and Rental and Leasing | $235,827 | $236,964 | 14 | $6.3M | Research |
| St. Augustine Indian Mission | Educational Services | $233,253 | $235,516 | 28 | N/A | Research |
| Hci Heritage Express Company | Retail Trade | $225,120 | $226,206 | 45 | $15.1M | Research |
| Flatwater Trading Company | Public Administration | $220,596 | $209,143 | 14 | N/A | Research |
| Protege Health Services, LLC | Public Administration | $189,422 | $179,378 | 17 | N/A | Research |
| Winnebago Gaming Development Corporation | Arts, Entertainment, and Recreation | $185,800 | $187,457 | 37 | $5.2M | Research |
| Hci Winnebago | Retail Trade | $185,769 | $186,665 | 32 | $8.0M | Research |