| Mattapan Community Health Center , INC . | Health Care and Social Assistance | $1,077,000 | $1,087,711 | 77 | N/A | AI Deep Dive |
| Bear Mt Mattapan LLC | Health Care and Social Assistance | $705,600 | $722,070 | 90 | $15.3M | AI Deep Dive |
| Long Bay Services INC | Administrative and Support and Waste Management | $634,883 | $642,032 | 23 | <$5M | AI Deep Dive |
| Boston Standard Plumbing Heating & Cooling | Construction | $574,192 | $576,696 | 41 | $13.0M | AI Deep Dive |
| Boston Standard Plumbing & Heating Incorporated | Construction | $477,775 | $480,960 | 47 | $14.9M | AI Deep Dive |
| Auto Service & Tire, Inc. | Other Services (except Public Administration) | $360,000 | $362,357 | 25 | <$5M | AI Deep Dive |
| Auto Service and Tire INC | Other Services (except Public Administration) | $360,000 | $362,209 | 25 | <$5M | AI Deep Dive |
| Economy Plumbing and Heating Supply Company | Wholesale Trade | $294,685 | $126,262 | 26 | $8.0M | AI Deep Dive |
| Barron Chiropractic and Rehabilitation PC | Health Care and Social Assistance | $242,700 | $244,834 | 21 | <$5M | AI Deep Dive |
| Barron Chiropractic and Rehabilitation | Health Care and Social Assistance | $242,700 | $244,050 | 21 | <$5M | AI Deep Dive |
| Frugal Furniture of Mattapan, Inc. | Retail Trade | $227,500 | $103,677 | 25 | <$5M | AI Deep Dive |
| J and B Insurance Agency INC | Finance and Insurance | $195,900 | $197,118 | 16 | $8.2M | AI Deep Dive |
| La Baguette Prime Bakery LLC | Manufacturing | $178,330 | $141,843 | 15 | $5.3M | AI Deep Dive |
| New England Ductless, Inc. | Construction | $173,424 | $174,571 | 17 | $5.4M | AI Deep Dive |
| Dane Shulman Associates, LLC | Professional, Scientific, and Technical Services | $167,785 | $219,944 | 19 | <$5M | AI Deep Dive |
| Priority Professional Care LLC | Health Care and Social Assistance | $158,977 | $154,357 | 13 | <$5M | AI Deep Dive |
| Ams Trucking & Transportation INC | Transportation and Warehousing | $134,098 | $136,578 | 20 | <$5M | AI Deep Dive |
| Economy Plumbing and Hea | Wholesale Trade | $133,682 | $134,670 | 27 | $8.3M | AI Deep Dive |
| Flames Restaurant | Accommodation and Food Services | $130,000 | $130,930 | 16 | <$5M | AI Deep Dive |
| Flames Restaurant | Accommodation and Food Services | $130,000 | $131,393 | 16 | <$5M | AI Deep Dive |
| New England Mechanical Co. Inc. | Professional, Scientific, and Technical Services | $127,050 | $128,738 | 9 | <$5M | AI Deep Dive |
| New England Mechanical Co. Inc. | Construction | $127,000 | $128,611 | 9 | <$5M | AI Deep Dive |
| Abbey Rd. Home Care Services, Inc. | Health Care and Social Assistance | $124,500 | $125,169 | 26 | <$5M | AI Deep Dive |
| People's Best Care Chiropractic and Rehabilitation Inc. | Health Care and Social Assistance | $114,681 | $115,028 | 11 | <$5M | AI Deep Dive |
| Frugal Furniture of Mattapan Inc. | Retail Trade | $103,447 | $104,068 | 12 | <$5M | AI Deep Dive |