| The Hamilton Company, Inc. | Real Estate and Rental and Leasing | $2,797,710 | $2,833,614 | 181 | $26.2M |  Research |
| G. Greene Construction Co. Inc. | Construction | $2,554,200 | $2,583,857 | 139 | $158.4M | Research |
| G. Greene Construction Co. INC | Construction | $2,000,000 | $2,018,833 | 140 | $159.5M | Research |
| Profile Group Inc. | Other Services (except Public Administration) | $1,973,576 | $1,998,849 | 309 | $59.0M | Research |
| Herb Chambers 1172 INC | Retail Trade | $1,850,000 | $1,864,286 | 160 | $40.3M | Research |
| All-At-Home Healthcare LLC | Health Care and Social Assistance | $1,345,825 | $1,361,564 | 316 | $54.1M | Research |
| Paint Nite LLC | Arts, Entertainment, and Recreation | $1,337,872 | $1,264,259 | 46 | $12.1M | Research |
| Pine Village Preschool Inc. | Health Care and Social Assistance | $1,047,100 | $1,056,710 | 174 | $28.2M | Research |
| Pine Village Preschool Inc. | Health Care and Social Assistance | $1,045,450 | $1,057,738 | 101 | $16.4M | Research |
| Commercial Cleaning Service, Inc. | Real Estate and Rental and Leasing | $1,003,177 | $1,010,896 | 162 | $24.3M | Research |
| Boston Sports Medicine, Inc. | Health Care and Social Assistance | $854,000 | $859,242 | 37 | $8.7M | Research |
| Herb Chambers 1168 INC | Retail Trade | $718,865 | $724,296 | 60 | $15.1M | Research |
| Mauna Kea Technologies INC | Professional, Scientific, and Technical Services | $701,510 | $709,207 | 27 | <$5M | Research |
| Ciba Health INC | Health Care and Social Assistance | $675,000 | $677,182 | 52 | $16.3M | Research |
| Rufo Cleaning and Maintenance Co | Administrative and Support and Waste Management | $674,800 | $681,252 | 74 | $16.0M | Research |
| Rufo Cleaning and Maintenance Co INC | Administrative and Support and Waste Management | $674,800 | $680,069 | 74 | $16.0M | Research |
| The Mount Vernon Company, Inc. | Real Estate and Rental and Leasing | $669,267 | $374,797 | 16 | <$5M | Research |
| Micozzi Management, Inc. | Real Estate and Rental and Leasing | $665,224 | $669,529 | 45 | $6.5M | Research |
| Saint Joseph Preparatory High School | Other Services (except Public Administration) | $656,776 | $665,332 | 55 | N/A | Research |
| German International School Boston, INC | Educational Services | $595,500 | $598,792 | 64 | N/A | Research |
| Overdrive Marketing Communications LLC | Professional, Scientific, and Technical Services | $580,946 | $584,819 | 37 | <$5M | Research |
| Committee for Accuracy in Middle East Reporting in America | Information | $551,200 | $554,492 | 34 | N/A | Research |
| Major League Lacrosse LLC | Arts, Entertainment, and Recreation | $535,014 | $539,133 | 326 | $45.6M | Research |
| West End House, Inc. | Health Care and Social Assistance | $526,200 | $385,549 | 33 | N/A | Research |
| Alpine Bearing Company, INC | Wholesale Trade | $503,185 | $509,629 | 27 | $8.3M | Research |