| Montgomery County Memorial Hospital | Health Care and Social Assistance | $5,031,782 | $5,085,454 | 357 | N/A |  Research |
| United Farmers Cooperative | Wholesale Trade | $3,036,200 | $3,072,128 | 319 | $82.1M | Research |
| Red Oak Greenhouses, Inc. | Agriculture, Forestry, Fishing and Hunting | $967,800 | $976,053 | 165 | $16.9M | Research |
| Red Oak Fabrication | Manufacturing | $530,900 | $534,012 | 65 | $17.0M | Research |
| Kismet Rdk, LLC | Administrative and Support and Waste Management | $298,500 | $301,477 | 36 | $5.7M | Research |
| 1200 Senate Avenue LLC | Accommodation and Food Services | $235,746 | $237,200 | 17 | $5.3M | Research |
| The Green Tree Company LLC | Administrative and Support and Waste Management | $198,759 | $199,489 | 15 | <$5M | Research |
| The Green Tree Company, L.l.c. | Administrative and Support and Waste Management | $198,700 | $199,931 | 15 | <$5M | Research |
| Audiological Services Inc. | Health Care and Social Assistance | $194,608 | $195,256 | 19 | $5.1M | Research |
| Audiological Services, INC | Health Care and Social Assistance | $194,600 | $196,632 | 20 | $5.4M | Research |
| Precision Diesel, Inc. | Other Services (except Public Administration) | $186,200 | $187,783 | 15 | <$5M | Research |
| Klyn Tire & Battery, Inc. | Accommodation and Food Services | $168,100 | $169,753 | 44 | $7.8M | Research |
| Hawkeye Ford INC | Retail Trade | $153,698 | $155,028 | 13 | <$5M | Research |
| Centennial Properties, L.l.c. | Accommodation and Food Services | $147,558 | $148,279 | 17 | $5.3M | Research |
| 1200 Senate Avenue L.l.c. | Accommodation and Food Services | $147,558 | $148,037 | 17 | $5.3M | Research |
| Hawkeye Ford INC | Retail Trade | $139,758 | $140,309 | 14 | <$5M | Research |
| Centennial Properties L.l.c. | Accommodation and Food Services | $132,936 | $133,689 | 11 | <$5M | Research |
| Orme Outdoor LLC | Administrative and Support and Waste Management | $129,104 | $129,807 | 12 | <$5M | Research |
| O'neal Electric Company | Manufacturing | $126,895 | $127,399 | 11 | <$5M | Research |
| O'neal Electric Company | Construction | $126,400 | $127,134 | 16 | $5.3M | Research |
| Red Oak Chrysler, Inc. | Retail Trade | $119,900 | $119,717 | 14 | <$5M | Research |
| Dental Care, P.c. | Health Care and Social Assistance | $110,200 | $110,859 | 10 | <$5M | Research |
| Arlington Place of Red Oak Ii, Inc. | Health Care and Social Assistance | $108,300 | $109,744 | 23 | <$5M | Research |
| Healthy Turf Landscaping Inc. | Professional, Scientific, and Technical Services | $108,165 | $109,175 | 13 | <$5M | Research |
| Healthy Turf Landscaping Inc. | Administrative and Support and Waste Management | $104,980 | $105,470 | 16 | <$5M | Research |