| Tauck INC | Administrative and Support and Waste Management | $8,238,452 | $6,299,323 | 361 | $114.2M |  Research |
| Nv Lnwa Jic Hotel LLC | Accommodation and Food Services | $2,000,000 | $2,011,014 | 204 | $63.8M | Research |
| Tauck INC | Administrative and Support and Waste Management | $2,000,000 | $2,034,575 | 232 | $73.4M | Research |
| The Canine Companies INC | Retail Trade | $1,861,600 | $1,875,665 | 157 | $37.5M | Research |
| Sage Adjusting, LLC | Administrative and Support and Waste Management | $1,819,200 | $1,837,791 | 84 | $15.9M | Research |
| Nv Lnwa Jic Hotel LLC | Accommodation and Food Services | $1,783,675 | $1,797,700 | 204 | $63.8M | Research |
| Glen Gate Company | Agriculture, Forestry, Fishing and Hunting | $1,770,453 | $1,782,967 | 100 | $10.2M | Research |
| Glen Gate Company | Administrative and Support and Waste Management | $1,755,025 | $1,764,483 | 160 | $34.7M | Research |
| Hoffman Landscapes, Inc. | Administrative and Support and Waste Management | $1,550,100 | $1,558,367 | 140 | $30.3M | Research |
| Visiting Nurse & Hospice of Fairfield County | Health Care and Social Assistance | $1,427,000 | $1,435,245 | 132 | N/A | Research |
| R4 Technologies Inc. | Information | $1,423,476 | $1,442,313 | 81 | $13.6M | Research |
| Property Group Partners LLC | Real Estate and Rental and Leasing | $1,356,322 | $1,364,683 | 70 | $10.2M | Research |
| Property Group Partners LLC | Real Estate and Rental and Leasing | $1,324,415 | $1,332,724 | 66 | $12.1M | Research |
| Nv Hh Property Owner LLC | Accommodation and Food Services | $1,323,756 | $1,331,009 | 88 | $27.5M | Research |
| Tapatio Property Owner LLC | Accommodation and Food Services | $1,196,195 | $1,203,077 | 87 | $27.2M | Research |
| Motors Group Inc. | Retail Trade | $927,600 | $940,045 | 74 | $18.6M | Research |
| Federici Brands LLC | Retail Trade | $860,642 | $871,794 | 53 | $9.2M | Research |
| Arista Industries, INC | Manufacturing | $854,715 | $859,726 | 37 | $13.1M | Research |
| Village Market, Inc. | Retail Trade | $782,900 | $789,463 | 64 | $16.0M | Research |
| Fairfield Chemical Carriers, Inc. | Transportation and Warehousing | $779,482 | $788,458 | 31 | $7.9M | Research |
| Connecticut Pediatric Partnership LLC | Health Care and Social Assistance | $762,300 | $768,900 | 52 | $16.3M | Research |
| Diray Media, Inc. | Professional, Scientific, and Technical Services | $717,600 | $721,945 | 34 | <$5M | Research |
| The Riverbrook Regional Young Men's Christian Association in | Other Services (except Public Administration) | $649,923 | $653,359 | 183 | $35.0M | Research |
| The Riverbrook Regional Young Men's Christian Association, I | Other Services (except Public Administration) | $649,900 | $654,173 | 200 | $38.2M | Research |
| Connec-To-Talk LLC | Health Care and Social Assistance | $640,100 | $648,220 | 118 | $27.6M | Research |