| Schimenti Construction Company, LLC | Construction | $4,669,700 | $4,725,088 | 213 | $242.7M |  Research |
| Visiting Nurse Association of Ridgefield, Inc. | Health Care and Social Assistance | $2,263,500 | $2,288,802 | 213 | $36.5M | Research |
| R4 Technologies, Inc. | Public Administration | $1,512,700 | $1,272,758 | 75 | N/A | Research |
| Lexington Downtown Hotel LLC DBA Hilton Lexington | Accommodation and Food Services | $1,507,632 | $1,517,809 | 118 | $36.9M | Research |
| Ridgefield Waterside Motors LLC | Retail Trade | $1,374,400 | $1,387,090 | 111 | $28.0M | Research |
| Ridgefield Academy, Inc. | Educational Services | $1,325,600 | $1,342,722 | 178 | N/A | Research |
| Adam Broderick Image Group Inc. | Other Services (except Public Administration) | $1,071,000 | $1,079,949 | 137 | $26.2M | Research |
| Reynolds & Rowella, LLP | Professional, Scientific, and Technical Services | $986,000 | $994,915 | 44 | $14.0M | Research |
| New Castle Hotels Management LLC | Accommodation and Food Services | $827,995 | $640,443 | 76 | $23.8M | Research |
| The Boxoffice Company LLC | Information | $789,663 | $797,126 | 81 | $13.6M | Research |
| The Ridgefield Supply Company | Retail Trade | $779,100 | $783,348 | 44 | $9.1M | Research |
| The Boxoffice Company LLC | Information | $725,600 | $733,413 | 82 | $13.8M | Research |
| Pamby Motors, INC | Retail Trade | $677,800 | $684,262 | 49 | $12.3M | Research |
| Southport Engineering Associates, P.c. | Professional, Scientific, and Technical Services | $647,100 | $653,855 | 20 | <$5M | Research |
| Pamby Motors INC | Retail Trade | $614,917 | $618,809 | 46 | $11.6M | Research |
| W&j Home Care, LLC DBA Firstlight Homecare of Western Ct | Health Care and Social Assistance | $614,747 | $620,688 | 80 | $13.7M | Research |
| Southport Engineering Associates PC | Professional, Scientific, and Technical Services | $613,913 | $618,353 | 21 | <$5M | Research |
| Vinylume, Inc. | Construction | $611,420 | $616,147 | 40 | $13.6M | Research |
| Litigation Analytics, Inc. | Professional, Scientific, and Technical Services | $587,400 | $593,531 | 11 | <$5M | Research |
| Servicengine Corporation | Professional, Scientific, and Technical Services | $535,000 | $537,694 | 170 | $35.2M | Research |
| Prospects Opportunity and Enrichment Inc. | Health Care and Social Assistance | $502,644 | $504,916 | 122 | N/A | Research |
| Prospects, Opportunity and Enrichment, Inc. | Information | $477,600 | $480,073 | 133 | N/A | Research |
| Riverside Fence, Inc. | Construction | $473,440 | $477,617 | 40 | $12.4M | Research |
| Casey Fuel, Inc. | Retail Trade | $426,700 | $429,042 | 24 | $5.7M | Research |
| Casey Fuel INC | Retail Trade | $426,700 | $430,266 | 23 | $5.5M | Research |