| Taunton Press. Inc. the | Information | $2,086,100 | $2,109,221 | 110 | $18.5M |  Research |
| Sandy Hook Promise Foundation, Inc. | Educational Services | $976,700 | $1,106,792 | 61 | N/A | Research |
| Tier One, LLC | Manufacturing | $858,300 | $793,662 | 72 | $17.6M | Research |
| Mckenney Mechanical Contractors, Inc. | Construction | $814,700 | $819,344 | 44 | $13.9M | Research |
| Maplewood at Newtown, LLC | Health Care and Social Assistance | $779,470 | $789,358 | 123 | $20.9M | Research |
| Caraluzzi's Newtown Market, LLC | Retail Trade | $658,200 | $663,141 | 95 | $23.7M | Research |
| Enterprise Electrical Contractors, INC | Construction | $629,500 | $634,414 | 47 | $15.5M | Research |
| Channel Media Solutions INC | Information | $594,175 | $601,535 | 290 | $48.7M | Research |
| Dermatology Associates of Western Connecticut | Health Care and Social Assistance | $583,000 | $586,190 | 52 | $16.3M | Research |
| Dermatology Associates of Western Connecticut, LLC | Health Care and Social Assistance | $583,000 | $586,142 | 50 | $15.7M | Research |
| Enterprise Electrical Contractors Inc. | Construction | $582,843 | $586,955 | 44 | $14.5M | Research |
| Advanced Fusion Systems LLC | Unknown | $562,735 | $566,320 | 25 | N/A | Research |
| Claris Construction Inc. | Construction | $532,675 | $537,262 | 27 | $30.8M | Research |
| Northeast Implant &oral Surgery PC | Health Care and Social Assistance | $511,250 | $515,746 | 37 | $8.6M | Research |
| Planters Choice LLC | Agriculture, Forestry, Fishing and Hunting | $501,500 | $507,861 | 43 | <$5M | Research |
| Advanced Fusion Systems LLC | Manufacturing | $495,540 | $499,061 | 25 | $6.5M | Research |
| Forecast International Inc. | Information | $457,965 | $460,982 | 39 | $6.5M | Research |
| Claris Construction Inc. | Construction | $427,400 | $432,327 | 27 | $30.8M | Research |
| H & a Group 2 LLC | Accommodation and Food Services | $420,147 | $424,990 | 37 | $6.6M | Research |
| H & a Group 6 LLC | Accommodation and Food Services | $410,368 | $415,315 | 30 | $5.3M | Research |
| The Bee Publishing Company | Information | $401,100 | $405,635 | 45 | $7.6M | Research |
| B & H Enterprises, LLC | Professional, Scientific, and Technical Services | $398,800 | $403,264 | 38 | $7.7M | Research |
| Northeast Implant & Oral Surgery, PC | Health Care and Social Assistance | $397,900 | $401,290 | 27 | $8.5M | Research |
| Walker Indus. Prod. of Ct Inc. | Wholesale Trade | $388,700 | $390,870 | 27 | $8.3M | Research |
| Wind Corporation | Retail Trade | $382,515 | $385,261 | 24 | <$5M | Research |