| Brownells INC | Manufacturing | $5,051,400 | $5,075,798 | 351 | $85.8M |  Research |
| Mayflower Homes Inc. | Health Care and Social Assistance | $1,049,460 | $1,059,051 | 135 | N/A | Research |
| Latimer Associates, INC | Professional, Scientific, and Technical Services | $1,028,800 | $1,036,692 | 82 | $17.0M | Research |
| St. Francis Manor INC | Health Care and Social Assistance | $992,322 | $999,282 | 94 | N/A | Research |
| Smith Cunningham Roudabush Miller LLP | Health Care and Social Assistance | $393,652 | $397,206 | 32 | $7.4M | Research |
| Smith, Cunningham, Roudabush, Miller LLP | Health Care and Social Assistance | $393,652 | $396,648 | 32 | $7.4M | Research |
| Wes Finch Auto Plaza, INC | Retail Trade | $393,167 | $396,679 | 51 | $12.9M | Research |
| Surgical Associates, L.l.p. | Health Care and Social Assistance | $351,900 | $356,229 | 28 | $8.8M | Research |
| Ahrens Agricultural Industries Co | Manufacturing | $329,295 | $332,678 | 27 | $7.1M | Research |
| Imagefirst LLC | Manufacturing | $272,400 | $274,467 | 21 | $5.9M | Research |
| Natural Products, INC | Agriculture, Forestry, Fishing and Hunting | $268,300 | $269,709 | 18 | <$5M | Research |
| Natural Products Inc. | Manufacturing | $260,562 | $261,423 | 25 | $8.8M | Research |
| Beeler's Inc. | Wholesale Trade | $236,100 | $237,884 | 17 | <$5M | Research |
| Bakerstarrett LLP | Professional, Scientific, and Technical Services | $220,412 | $237,576 | 14 | <$5M | Research |
| Jdpagliai Inc. | Accommodation and Food Services | $206,463 | $208,551 | 59 | $10.5M | Research |
| Steve Link Ford Lincoln Inc. | Retail Trade | $204,700 | $205,888 | 15 | <$5M | Research |
| Steve Link Ford Lincoln INC | Retail Trade | $202,805 | $204,242 | 15 | <$5M | Research |
| Total Rehab-Orthopedic & Sports Specialists, P.c. | Health Care and Social Assistance | $196,094 | $197,630 | 15 | <$5M | Research |
| Malcom Lumber & Hardware Inc. | Retail Trade | $161,755 | $162,371 | 22 | <$5M | Research |
| Mariposa Farms, Inc. | Agriculture, Forestry, Fishing and Hunting | $161,000 | $162,963 | 22 | <$5M | Research |
| Grinnell Community Daycare INC | Health Care and Social Assistance | $160,782 | $161,684 | 34 | N/A | Research |
| Grinnell Implement Store INC | Retail Trade | $159,045 | $160,919 | 13 | <$5M | Research |
| Grinnell Family Care | Health Care and Social Assistance | $158,925 | $156,388 | 14 | <$5M | Research |
| Ramsey-Weeks, INC | Finance and Insurance | $156,762 | $157,633 | 12 | $6.2M | Research |
| Bernie Lowe & Associates | Finance and Insurance | $153,000 | $153,846 | 10 | <$5M | Research |