| L&m Radiator, INC | Manufacturing | $3,986,200 | $4,031,709 | 331 | $92.4M |  Research |
| Compudyne | Professional, Scientific, and Technical Services | $1,646,200 | $1,658,783 | 98 | $20.3M | Research |
| George Bougalis and Sons Co. | Construction | $1,575,375 | $1,588,151 | 55 | $17.0M | Research |
| Access North Center for Independent Livi | Unknown | $1,320,915 | $1,328,620 | 379 | N/A | Research |
| Mtd Acquisitions INC | Real Estate and Rental and Leasing | $1,252,500 | $1,242,668 | 98 | $14.7M | Research |
| Guardian Angels Health and Rehabilitation Center | Health Care and Social Assistance | $999,745 | $1,005,552 | 118 | $20.1M | Research |
| Premium Plant Services, Inc. | Construction | $977,380 | $983,842 | 81 | $27.6M | Research |
| Premium Plant Services INC | Construction | $875,755 | $882,329 | 64 | $21.8M | Research |
| Radotich INC | Construction | $811,400 | $817,602 | 50 | $15.8M | Research |
| Radotich INC | Construction | $805,000 | $809,036 | 25 | $7.9M | Research |
| George Bougalis and Sons, Co. | Mining, Quarrying, and Oil and Gas Extraction | $705,552 | $709,655 | 35 | <$5M | Research |
| Max Gray Contruction Inc. | Construction | $705,000 | $709,037 | 34 | $38.7M | Research |
| Klinefelter Synergy, LLC | Accommodation and Food Services | $697,700 | $702,293 | 263 | $46.7M | Research |
| Max Gray Construction, Inc. | Construction | $693,202 | $697,053 | 49 | $14.9M | Research |
| Jasper Engineering and Equipment Company | Wholesale Trade | $687,456 | $691,294 | 45 | $13.8M | Research |
| Range Develoment Co of Chisholm, INC | Health Care and Social Assistance | $621,500 | $611,185 | 90 | $15.3M | Research |
| Range Development Company of Chisholm | Health Care and Social Assistance | $606,100 | $608,973 | 72 | $12.2M | Research |
| Cast Corporation | Manufacturing | $573,435 | $576,184 | 55 | $14.4M | Research |
| Irathane Systems, LLC | Construction | $567,762 | $570,780 | 39 | $12.1M | Research |
| Irathane Systems LLC | Manufacturing | $567,762 | $569,846 | 42 | $41.7M | Research |
| Cormac, LLC | Accommodation and Food Services | $512,700 | $516,075 | 233 | $41.4M | Research |
| Cast Corporation | Manufacturing | $489,800 | $497,362 | 46 | $12.0M | Research |
| Industrial Rubber Applicators, LLC | Construction | $467,972 | $470,908 | 25 | $7.7M | Research |
| Industrial Rubber Applicators LLC | Manufacturing | $467,972 | $469,690 | 25 | $24.8M | Research |
| Iron Range Plumbing & Heating, Inc. | Construction | $392,725 | $395,529 | 19 | $6.0M | Research |