| Lindsay Municipal Hospital Authority | Health Care and Social Assistance | $1,452,256 | $1,465,205 | 131 | $26.0M |  Research |
| Venture Pipe and Supply Inc. | Mining, Quarrying, and Oil and Gas Extraction | $1,289,372 | $1,299,544 | 113 | $6.9M | Research |
| Rural Electric Cooperative, INC | Utilities | $1,179,795 | $1,194,116 | 53 | N/A | Research |
| Venture Pipe and Supply INC | Mining, Quarrying, and Oil and Gas Extraction | $1,131,453 | $1,141,982 | 92 | $5.6M | Research |
| Vickers Construction, Inc. | Construction | $898,510 | $903,705 | 88 | $27.3M | Research |
| Vickers Construction Inc. | Construction | $692,513 | $700,496 | 60 | $18.6M | Research |
| S & H Tank Services of Oklahoma | Transportation and Warehousing | $615,500 | $615,237 | 45 | $6.8M | Research |
| S&h Tank Service of Oklahoma | Transportation and Warehousing | $615,500 | $618,851 | 32 | <$5M | Research |
| Homer Rinehart Company, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $555,000 | $561,753 | 44 | <$5M | Research |
| Diamond Well Service, LLC | Mining, Quarrying, and Oil and Gas Extraction | $552,200 | $556,406 | 38 | <$5M | Research |
| Jerry Tucker Roustabout Rentals LLC | Mining, Quarrying, and Oil and Gas Extraction | $530,549 | $531,669 | 38 | <$5M | Research |
| Jerry Tucker Roustabout Rentals, LLC | Mining, Quarrying, and Oil and Gas Extraction | $530,549 | $534,366 | 32 | <$5M | Research |
| South Central Medical and Resource Center, INC | Health Care and Social Assistance | $426,425 | $430,559 | 41 | N/A | Research |
| Superflow Testers, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $420,000 | $540,554 | 34 | <$5M | Research |
| Daniel Beck Welding and Construction LLC | Mining, Quarrying, and Oil and Gas Extraction | $403,600 | $408,952 | 22 | <$5M | Research |
| Asher Oilfield Specialty LLC | Mining, Quarrying, and Oil and Gas Extraction | $362,308 | $364,388 | 19 | <$5M | Research |
| Hines Location Lighting, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $339,553 | $342,694 | 23 | <$5M | Research |
| Hines Location Lighting Inc. | Mining, Quarrying, and Oil and Gas Extraction | $339,553 | $343,863 | 12 | <$5M | Research |
| Diamond Well Service LLC | Mining, Quarrying, and Oil and Gas Extraction | $306,221 | $307,403 | 26 | <$5M | Research |
| T&t Forklift Service, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $215,320 | $217,443 | 12 | <$5M | Research |
| Davis Machine Shop INC | Manufacturing | $206,500 | $208,327 | 14 | <$5M | Research |
| Davis Machine Shop Inc. | Manufacturing | $206,500 | $208,791 | 14 | <$5M | Research |
| T & T Forklift Services Inc. | Mining, Quarrying, and Oil and Gas Extraction | $184,538 | $186,860 | 18 | <$5M | Research |
| Bruce Jones' Oilfield Service Company, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $168,531 | $170,071 | 17 | <$5M | Research |
| Webb Oil Company, Inc. | Wholesale Trade | $161,800 | $164,154 | 12 | <$5M | Research |