| The Meramec Group, Inc. | Manufacturing | $2,248,900 | $2,278,386 | 228 | $80.5M |  Research |
| The Meramec Group Inc. | Manufacturing | $2,000,000 | $2,019,944 | 277 | $97.8M | Research |
| Ace Manufacturing & Parts Co., Inc. | Manufacturing | $1,164,100 | $1,173,607 | 98 | $25.7M | Research |
| Ace Manufacturing and Parts Co. | Manufacturing | $1,145,294 | $1,153,406 | 117 | $30.6M | Research |
| Ditch Witch Sales, INC | Wholesale Trade | $1,099,022 | $1,105,311 | 77 | $23.6M | Research |
| Reliable Turbine Services, LLC | Manufacturing | $899,265 | $904,885 | 51 | $13.4M | Research |
| Huggins Metal Finishing, Inc. | Manufacturing | $796,100 | $801,095 | 95 | $23.2M | Research |
| Central Markets Inc. D/b/a Frick's Market | Retail Trade | $529,600 | $532,633 | 77 | $19.2M | Research |
| Modern Motor Coaches, INC | Transportation and Warehousing | $398,100 | $400,881 | 37 | $9.2M | Research |
| Laura Chevrolet Buick Gmc of Sullivan, Llc. | Retail Trade | $353,600 | $357,065 | 33 | $8.3M | Research |
| Empac Group, Inc. | Health Care and Social Assistance | $309,900 | $311,904 | 44 | N/A | Research |
| Laura Ford of Sullivan, LLC | Retail Trade | $304,782 | $307,727 | 27 | $6.8M | Research |
| Meramec Caverns Enterprises Inc. | Arts, Entertainment, and Recreation | $296,863 | $298,826 | 11 | <$5M | Research |
| Tim Reinhold Enterprises LLC | Construction | $291,824 | $292,943 | 25 | $9.4M | Research |
| Peterson Oil Co. | Manufacturing | $274,000 | $275,659 | 23 | $22.8M | Research |
| Meramec Caverns Enterprises, Inc. | Arts, Entertainment, and Recreation | $272,482 | $274,548 | 38 | $5.3M | Research |
| Missouri Vinyl Products LLC | Wholesale Trade | $270,331 | $272,122 | 21 | $6.4M | Research |
| Laura Automotive of Sullivan, LLC | Retail Trade | $253,435 | $255,919 | 24 | $6.0M | Research |
| Tim Reinhold Enterprises LLC | Construction | $251,800 | $253,221 | 31 | $10.2M | Research |
| Midwest Mechanical Insulation, Inc. | Construction | $247,400 | $249,284 | 12 | <$5M | Research |
| Chaseco, Inc. | Real Estate and Rental and Leasing | $241,807 | $243,219 | 23 | $10.4M | Research |
| Rokwell Industries Ind | Manufacturing | $237,300 | $240,418 | 19 | <$5M | Research |
| Sullivan Veterinary Hospital of Franklin County PC | Professional, Scientific, and Technical Services | $234,200 | $235,547 | 29 | <$5M | Research |
| Latitudes INC | Manufacturing | $218,600 | $221,156 | 18 | $6.4M | Research |
| Rokwell Industries | Manufacturing | $213,357 | $214,619 | 117 | $28.6M | Research |