| The Connecticut Spring & Stamping Corporation | Manufacturing | $4,810,155 | $4,862,474 | 399 | $97.5M |  Research |
| Bendett & Mchugh | Professional, Scientific, and Technical Services | $3,292,715 | $3,329,972 | 269 | $65.4M | Research |
| Mott Corporation | Wholesale Trade | $3,137,340 | $0 | 189 | $57.9M | Research |
| Kbe Building Corporation | Construction | $2,678,600 | $2,713,458 | 130 | $148.1M | Research |
| All State Construction, Inc. | Construction | $2,169,539 | $2,464,825 | 165 | $188.0M | Research |
| Bendett and Mchugh PC | Professional, Scientific, and Technical Services | $2,000,000 | $2,015,342 | 202 | $49.1M | Research |
| Hrp Associates, Inc. | Professional, Scientific, and Technical Services | $1,741,200 | $1,750,884 | 124 | $15.3M | Research |
| Van Zelm Heywood & Shadford, Inc. | Professional, Scientific, and Technical Services | $1,603,252 | $1,618,186 | 83 | $10.2M | Research |
| Consulting Ophthalmologists, P.c. | Health Care and Social Assistance | $1,415,987 | $1,428,285 | 85 | $26.7M | Research |
| Interim Healthcare of Hartford, INC | Health Care and Social Assistance | $1,336,820 | $1,352,056 | 180 | $30.8M | Research |
| Diameter Health, Inc. | Professional, Scientific, and Technical Services | $1,324,800 | $0 | 61 | $12.6M | Research |
| Fip Construction, Inc. | Construction | $1,300,290 | $1,315,003 | 69 | $78.6M | Research |
| Consulting Ophthalmologists PC | Health Care and Social Assistance | $1,285,580 | $1,294,949 | 120 | $37.7M | Research |
| Turbine Technologies INC | Manufacturing | $1,144,339 | $1,148,258 | 59 | $15.4M | Research |
| Veracore Software Solutions, Inc. | Professional, Scientific, and Technical Services | $1,073,660 | $1,085,440 | 43 | $8.9M | Research |
| Center for Transitional Living LLC | Health Care and Social Assistance | $893,062 | $903,481 | 234 | $40.1M | Research |
| Terry Mcmorrow | Accommodation and Food Services | $888,000 | $893,871 | 161 | $28.6M | Research |
| On-Line Systems Inc. | Administrative and Support and Waste Management | $843,058 | $850,505 | 50 | $7.9M | Research |
| Farmington Rehab Center LLC | Health Care and Social Assistance | $818,105 | $828,550 | 120 | $20.4M | Research |
| Modern Mechanical Systems,inc. | Construction | $814,235 | $820,280 | 40 | $13.2M | Research |
| Modern Mechanical Systemsinc. | Construction | $814,235 | $818,451 | 40 | $12.7M | Research |
| Niktor LLC | Professional, Scientific, and Technical Services | $811,008 | $817,562 | 57 | $11.8M | Research |
| The Life and Annuity Group, INC | Finance and Insurance | $764,763 | $775,993 | 44 | $22.6M | Research |
| Adnet Technologies LLC | Professional, Scientific, and Technical Services | $762,703 | $767,801 | 42 | $8.7M | Research |
| Northeast Towers, Inc. | Construction | $750,267 | $755,838 | 36 | $11.2M | Research |