| Setco Inc. | Manufacturing | $1,726,755 | $1,735,437 | 145 | $143.8M |  Research |
| Mccurtain Memorial Medical Management Inc. | Health Care and Social Assistance | $1,668,311 | $1,683,511 | 183 | $36.3M | Research |
| Mccurtain Memorial Medical Management, Inc. | Health Care and Social Assistance | $1,618,403 | $1,627,581 | 166 | $32.9M | Research |
| Setco, Inc. | Manufacturing | $1,378,600 | $1,392,769 | 139 | $137.9M | Research |
| Heartway Corporation | Health Care and Social Assistance | $563,245 | $570,559 | 128 | N/A | Research |
| Hill's Nursing Home, Inc. | Health Care and Social Assistance | $326,000 | $328,871 | 65 | $11.1M | Research |
| Laurthom, Inc. | Accommodation and Food Services | $297,941 | $299,868 | 82 | $14.6M | Research |
| Ultimate Home Care Services | Health Care and Social Assistance | $267,300 | $270,018 | 94 | $16.1M | Research |
| Kiamichi Youth Services Inc. | Health Care and Social Assistance | $254,497 | $256,448 | 34 | N/A | Research |
| James Hodge Ford, Inc. | Retail Trade | $249,700 | $252,218 | 22 | $5.5M | Research |
| Kiamichi Youth Services for Mccurtain County Inc. | Educational Services | $197,100 | $199,016 | 11 | N/A | Research |
| Idabel Coca-Cola Bottling Co. | Manufacturing | $191,585 | $192,682 | 12 | <$5M | Research |
| Cielito Lindo, LLC | Accommodation and Food Services | $188,362 | $189,802 | 40 | $7.1M | Research |
| Complete Care Medical, Inc. | Wholesale Trade | $173,966 | $174,990 | 21 | $6.4M | Research |
| Coursey Enterprises, Inc. | Wholesale Trade | $172,300 | $173,254 | 20 | $6.1M | Research |
| Peevy Piping Inc. | Construction | $140,780 | $141,660 | 11 | <$5M | Research |
| Peevy Piping, Inc. | Construction | $140,700 | $141,790 | 13 | <$5M | Research |
| Karen S Carper Consulting INC | Accommodation and Food Services | $137,041 | $138,329 | 19 | <$5M | Research |
| Robbins Rv & Auto Center, LLC | Retail Trade | $119,053 | $119,717 | 14 | <$5M | Research |
| Roger Hammonds Construction LLC | Construction | $108,100 | $109,667 | 10 | <$5M | Research |
| Quality Rock, Inc. | Mining, Quarrying, and Oil and Gas Extraction | $108,000 | $108,693 | 21 | <$5M | Research |
| Moyer Equipment Sales & Rentals, Inc. | Real Estate and Rental and Leasing | $99,283 | $100,028 | 15 | $6.8M | Research |
| The Learning Tree of Idabel, Inc. | Health Care and Social Assistance | $96,718 | $97,621 | 17 | <$5M | Research |
| 4-Way Professional Pest Services, INC | Administrative and Support and Waste Management | $96,395 | $96,877 | 19 | <$5M | Research |
| Karen S Carper Consulting, INC | Accommodation and Food Services | $95,925 | $96,737 | 19 | <$5M | Research |