| Shipman's Fire Equipment Company, INC | Wholesale Trade | $559,302 | $562,642 | 40 | $12.3M |  Research |
| Dicin Electric Co., Inc. | Construction | $539,760 | $545,757 | 22 | $7.2M | Research |
| Irnm Hotel Cromwell LLC | Accommodation and Food Services | $469,945 | $472,378 | 46 | $14.4M | Research |
| Shelton Suites LLC | Accommodation and Food Services | $436,254 | $438,800 | 18 | $5.6M | Research |
| Waltham Suites LLC | Accommodation and Food Services | $435,005 | $437,686 | 19 | $5.9M | Research |
| Eugene O'neill Memorial Theater Center, Inc. | Arts, Entertainment, and Recreation | $360,732 | $362,728 | 38 | N/A | Research |
| Ear, Nose and Throat Associates of Southeastern Connecticut, | Health Care and Social Assistance | $346,811 | $349,538 | 26 | $8.2M | Research |
| Ear Nose and Throat Associates of Southeastern Connecticut P | Health Care and Social Assistance | $346,811 | $349,614 | 23 | $7.2M | Research |
| Windsor Suites LLC | Accommodation and Food Services | $340,039 | $341,739 | 16 | $5.0M | Research |
| Eugene O'neill Memorial Theater Center Inc. | Arts, Entertainment, and Recreation | $339,065 | $342,530 | 33 | N/A | Research |
| Irnm Hotel Cromwell, LLC | Accommodation and Food Services | $335,600 | $337,724 | 46 | $14.4M | Research |
| Kobyluck, Inc. | Construction | $331,647 | $333,410 | 20 | $6.2M | Research |
| Shelton Suites LLC | Accommodation and Food Services | $311,600 | $314,118 | 46 | $14.4M | Research |
| Waltham Suites, LLC | Accommodation and Food Services | $310,700 | $314,258 | 38 | $11.9M | Research |
| Retina Group of New England PC | Health Care and Social Assistance | $310,697 | $312,689 | 28 | $8.8M | Research |
| Careco Medical, Inc. | Health Care and Social Assistance | $295,782 | $298,999 | 23 | <$5M | Research |
| Waterford Dental Health PC | Health Care and Social Assistance | $295,000 | $297,303 | 25 | $5.8M | Research |
| Waterford Dental Health | Health Care and Social Assistance | $295,000 | $297,182 | 25 | $5.8M | Research |
| Jaypro Sports, LLC | Manufacturing | $292,500 | $296,531 | 18 | $5.0M | Research |
| Seconn Insurance, INC | Finance and Insurance | $291,800 | $296,069 | 20 | $10.3M | Research |
| Lahinch Suites LLC | Accommodation and Food Services | $279,380 | $280,735 | 20 | $6.3M | Research |
| Stuart Lodgings LLC | Accommodation and Food Services | $276,476 | $277,988 | 20 | $6.3M | Research |
| Hgs Enterprises, Inc. | Accommodation and Food Services | $274,771 | $277,512 | 37 | $6.6M | Research |
| Langley's Restaurant LLC | Accommodation and Food Services | $267,159 | $271,299 | 20 | <$5M | Research |
| Windsor Suites, LLC | Accommodation and Food Services | $242,800 | $245,666 | 38 | $11.9M | Research |