| Kay Electric Cooperative, Inc. | Utilities | $1,039,100 | $1,044,902 | 47 | N/A |  Research |
| Shepherd Transportation, LLC | Transportation and Warehousing | $698,808 | $703,525 | 49 | $13.1M | Research |
| Stimulation Pumping Services LLC | Mining, Quarrying, and Oil and Gas Extraction | $655,852 | $659,661 | 38 | <$5M | Research |
| Stimulation Pumping Services INC | Mining, Quarrying, and Oil and Gas Extraction | $655,800 | $662,807 | 41 | <$5M | Research |
| Cfm Corporation | Manufacturing | $581,500 | $587,493 | 43 | $11.3M | Research |
| Shepherd Oil Company LLC | Wholesale Trade | $526,715 | $528,968 | 81 | $20.8M | Research |
| Shepherd Oil Company, LLC | Retail Trade | $503,498 | $520,178 | 80 | $26.8M | Research |
| Schatz Publishing Group, LLC | Information | $461,900 | $466,342 | 31 | $5.2M | Research |
| Northern Therapy and Rehabilitation, P.c. | Health Care and Social Assistance | $305,514 | $307,559 | 34 | $9.2M | Research |
| Loftis & Wetzel Corporation | Finance and Insurance | $269,620 | $271,171 | 28 | $14.4M | Research |
| Bedlam Properties, LLC | Health Care and Social Assistance | $261,500 | $263,535 | 36 | $6.1M | Research |
| Los Angeles Boiler Works INC | Manufacturing | $254,428 | $255,877 | 29 | $7.6M | Research |
| Los Angeles Boiler Works INC | Manufacturing | $254,428 | $255,466 | 29 | $7.6M | Research |
| Kings Well Service LLC | Mining, Quarrying, and Oil and Gas Extraction | $243,000 | $244,465 | 19 | <$5M | Research |
| Blackwell Dentistry Pllc | Retail Trade | $202,977 | $204,352 | 25 | <$5M | Research |
| North Central Oklahoma Emergency Services INC | Health Care and Social Assistance | $168,400 | $170,181 | 6 | <$5M | Research |
| Wheatheart Nutrition Project INC | Health Care and Social Assistance | $138,500 | $139,313 | 56 | N/A | Research |
| Blackwell Animal Hospital, INC | Professional, Scientific, and Technical Services | $130,600 | $131,806 | 20 | <$5M | Research |
| Blackwell Pharmacy, LLC | Retail Trade | $87,100 | $87,978 | 13 | <$5M | Research |
| Hetrick Electric LLC | Construction | $84,687 | $85,054 | 6 | <$5M | Research |
| Hetrick Electric, LLC | Construction | $84,100 | $84,513 | 9 | <$5M | Research |
| Sdi Blackwell Oklahoma INC | Accommodation and Food Services | $83,200 | $83,918 | 20 | <$5M | Research |
| Get LLC | Information | $81,281 | $82,383 | 9 | <$5M | Research |
| Car Wash Dynamics, LLC | Other Services (except Public Administration) | $78,600 | $79,332 | 13 | <$5M | Research |
| Phb Lodging LLC | Accommodation and Food Services | $75,838 | $76,407 | 18 | $5.6M | Research |