| Wyatt Construction Company INC | Construction | $4,658,210 | $4,713,332 | 415 | $128.6M |  Research |
| Mertz Manufacturing, Inc. | Manufacturing | $3,599,400 | $3,642,193 | 189 | $49.5M | Research |
| Mertz Manufacturing Inc. | Manufacturing | $2,000,000 | $2,017,889 | 122 | $31.9M | Research |
| Consulting and Field Services, LLC | Professional, Scientific, and Technical Services | $1,680,800 | $1,693,920 | 84 | $8.7M | Research |
| Quarter Turn Resources, Inc. | Wholesale Trade | $1,431,600 | $1,441,064 | 104 | $31.9M | Research |
| Quarter Turn Resources, Inc. | Manufacturing | $1,395,890 | $1,403,683 | 92 | $22.5M | Research |
| M J & H Fabrication Inc. | Construction | $1,301,158 | $1,311,675 | 63 | $23.6M | Research |
| Mj & H Fabrication, Inc. | Manufacturing | $1,301,100 | $1,312,051 | 63 | $15.4M | Research |
| Mid-America Door Company | Manufacturing | $1,181,700 | $1,197,653 | 112 | $27.4M | Research |
| Consulting and Field Services LLC | Professional, Scientific, and Technical Services | $1,181,084 | $1,192,567 | 137 | $19.2M | Research |
| Rk Oilfield Services LLC | Mining, Quarrying, and Oil and Gas Extraction | $1,086,135 | $1,092,682 | 52 | <$5M | Research |
| Rk Oilfield Services LLC | Mining, Quarrying, and Oil and Gas Extraction | $1,086,135 | $1,096,001 | 63 | <$5M | Research |
| Drisco, L.l.c. | Manufacturing | $916,200 | $927,296 | 82 | $81.3M | Research |
| Evans & Associates Utility Services INC | Construction | $817,490 | $827,164 | 70 | $21.7M | Research |
| Supported Community Lifestyles, Inc. | Health Care and Social Assistance | $793,000 | $802,538 | 150 | $25.5M | Research |
| Bliss Industries, LLC | Manufacturing | $692,100 | $699,925 | 63 | $16.5M | Research |
| Supported Community Lifestyles Personnel- Stillwater, Inc. | Health Care and Social Assistance | $541,250 | $546,196 | 120 | $20.4M | Research |
| Webster Shipping, INC | Transportation and Warehousing | $537,700 | $542,002 | 69 | $10.4M | Research |
| Evans & Associates Construction Co., INC | Mining, Quarrying, and Oil and Gas Extraction | $512,452 | $518,517 | 34 | <$5M | Research |
| Supported Community Lifestyles Personnel- Enid, Inc. | Health Care and Social Assistance | $469,800 | $474,354 | 101 | $17.2M | Research |
| Terra Firma Solutions, Inc. | Professional, Scientific, and Technical Services | $456,700 | $459,351 | 34 | <$5M | Research |
| D & P Tank Service INC | Transportation and Warehousing | $437,495 | $439,865 | 38 | <$5M | Research |
| D & P Tank Service, INC | Mining, Quarrying, and Oil and Gas Extraction | $437,495 | $440,959 | 40 | <$5M | Research |
| Stolhand Wells Plumbing Heating and Air Conditioning Inc. | Construction | $411,431 | $414,345 | 34 | $10.8M | Research |
| Opportunity Center Inc. | Other Services (except Public Administration) | $408,800 | $411,185 | 118 | N/A | Research |