| Impact Branding & Design LLC | Professional, Scientific, and Technical Services | $1,238,080 | $1,249,979 | 64 | $6.6M |  Research |
| Pickard Chilton Architects INC | Professional, Scientific, and Technical Services | $1,231,065 | $1,244,624 | 51 | $15.8M | Research |
| Enterprise Plumbing & Heating INC | Construction | $1,213,125 | $1,222,531 | 62 | $19.6M | Research |
| All Our Kin, LLC | Health Care and Social Assistance | $1,159,035 | $1,169,958 | 68 | $11.0M | Research |
| Atticus Bakery, LLC | Manufacturing | $1,145,936 | $1,160,378 | 143 | $50.5M | Research |
| Nova Home Care LLC | Health Care and Social Assistance | $1,116,877 | $1,120,824 | 257 | $41.6M | Research |
| Standard Tile Distributors, INC | Retail Trade | $1,085,180 | $1,099,362 | 74 | $15.3M | Research |
| Bender Plumbing Supplies, Incorporated | Wholesale Trade | $1,011,100 | $1,017,333 | 89 | $27.3M | Research |
| Quarterboard Associates LLC | Accommodation and Food Services | $984,039 | $995,821 | 65 | $11.5M | Research |
| The Study New Haven LLC | Accommodation and Food Services | $965,552 | $884,821 | 110 | $34.4M | Research |
| Beers Hamerman Cohen & Burger PC | Professional, Scientific, and Technical Services | $958,700 | $969,942 | 50 | $15.9M | Research |
| Grey Wall Software, LLC | Professional, Scientific, and Technical Services | $947,705 | $960,973 | 51 | $10.5M | Research |
| Dirienzo Mechanical Contractors Inc. | Construction | $939,000 | $618,914 | 67 | $21.2M | Research |
| Dirienzo Mechanical Contractors, Inc. | Construction | $939,000 | $948,879 | 67 | $21.2M | Research |
| Fusco Management Company | Real Estate and Rental and Leasing | $937,500 | $948,827 | 63 | $9.4M | Research |
| Brenner Saltzman Wallman LLP | Professional, Scientific, and Technical Services | $908,100 | $920,167 | 49 | $11.9M | Research |
| The Star Supply Company | Wholesale Trade | $886,255 | $891,863 | 47 | $14.4M | Research |
| Chapel Haven Schleifer Center | Other Services (except Public Administration) | $882,829 | $888,269 | 172 | $32.9M | Research |
| Go to Service, Lcc | Administrative and Support and Waste Management | $869,320 | $875,655 | 150 | $32.5M | Research |
| Go to Service LLC | Administrative and Support and Waste Management | $869,142 | $874,476 | 136 | $29.5M | Research |
| Freshbev LLC | Manufacturing | $858,135 | $869,773 | 43 | $15.2M | Research |
| Freshbev LLC | Manufacturing | $858,135 | $863,284 | 41 | $14.5M | Research |
| Neubert, Pepe & Monteith, P.c. | Professional, Scientific, and Technical Services | $839,505 | $845,807 | 55 | $13.4M | Research |
| Newman Architects, PC | Professional, Scientific, and Technical Services | $826,900 | $837,820 | 46 | $14.3M | Research |
| New Haven Ecology Project, INC | Educational Services | $808,870 | $817,633 | 76 | N/A | Research |