| Advanced Knowledge Tech LLC | Professional, Scientific, and Technical Services | $1,629,945 | $1,651,110 | 78 | $16.1M |  Research |
| Overland Corporation | Construction | $1,250,900 | $1,264,094 | 91 | $28.2M | Research |
| Mental Health Services of Southern Oklahoma | Health Care and Social Assistance | $1,113,540 | $1,119,974 | 157 | N/A | Research |
| Billingsley Holding Co., LLC | Retail Trade | $1,071,300 | $2,095,531 | 173 | $43.6M | Research |
| Dale Brown, INC | Transportation and Warehousing | $990,000 | $959,421 | 109 | $22.0M | Research |
| Dale Brown INC | Transportation and Warehousing | $951,256 | $956,884 | 100 | $26.7M | Research |
| Lynn Boyer INC | Construction | $876,000 | $881,328 | 65 | $21.4M | Research |
| Lynn Boyer Inc. | Construction | $876,000 | $885,408 | 65 | $21.4M | Research |
| Ideal Home Care, LP | Health Care and Social Assistance | $871,227 | $878,318 | 54 | $14.6M | Research |
| Smith, Carney & Co P.c. | Professional, Scientific, and Technical Services | $746,000 | $751,743 | 44 | $14.0M | Research |
| Ideal Home Care, LP | Health Care and Social Assistance | $734,287 | $738,122 | 60 | $10.3M | Research |
| Patriot Auto Group 5, LLC | Retail Trade | $700,200 | $707,708 | 63 | $15.9M | Research |
| Cross Timbers Hospice INC | Health Care and Social Assistance | $700,000 | $703,928 | 63 | N/A | Research |
| Summit Rehab LLC | Health Care and Social Assistance | $676,900 | $683,556 | 84 | $22.7M | Research |
| R. D. Williams & Company | Mining, Quarrying, and Oil and Gas Extraction | $674,500 | $384,142 | 40 | <$5M | Research |
| Carter County Dodge Chrysler Jeep LLC | Retail Trade | $656,400 | $660,302 | 58 | $14.6M | Research |
| Arbuckle Closing & Escrow Services LLC | Real Estate and Rental and Leasing | $611,310 | $612,754 | 32 | $5.9M | Research |
| Southern Market Group INC | Retail Trade | $539,200 | $544,282 | 74 | $18.1M | Research |
| Michael G Mccauley MD INC | Health Care and Social Assistance | $538,800 | $545,443 | 48 | $15.1M | Research |
| Asphalt Express Enterprises, LLC | Transportation and Warehousing | $523,800 | $528,708 | 72 | $19.2M | Research |
| Elmbrook Home, INC | Health Care and Social Assistance | $515,559 | $520,503 | 87 | $14.8M | Research |
| Southern Market Group, INC | Retail Trade | $490,600 | $494,511 | 62 | $15.1M | Research |
| John F Sullivan Incorporated | Finance and Insurance | $483,800 | $395,537 | 17 | $8.7M | Research |
| Southern Oklahoma Ambulance Service | Health Care and Social Assistance | $480,400 | $485,730 | 43 | N/A | Research |
| The Quintin Little Company, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $463,400 | $467,006 | 26 | <$5M | Research |