| The Training Associates Corporation | Professional, Scientific, and Technical Services | $977,981 | $988,685 | 31 | $6.4M | AI Deep Dive |
| Skinner Inc. | Retail Trade | $921,310 | $929,665 | 113 | $21.4M | AI Deep Dive |
| Skinner Inc. | Administrative and Support and Waste Management | $913,428 | $926,441 | 108 | $20.4M | AI Deep Dive |
| Central Steel Supply Co INC | Wholesale Trade | $897,000 | $903,628 | 63 | $19.3M | AI Deep Dive |
| Baypath Elder Services INC | Health Care and Social Assistance | $811,000 | $821,205 | 105 | N/A | AI Deep Dive |
| Hillside School INC | Educational Services | $796,338 | $802,185 | 55 | N/A | AI Deep Dive |
| Nissan Automobiles of Marlborough Inc. | Retail Trade | $792,353 | $801,663 | 71 | $17.9M | AI Deep Dive |
| Nissan Automobiles of Marlborough INC | Retail Trade | $792,352 | $800,958 | 42 | $10.6M | AI Deep Dive |
| Hillside School INC | Educational Services | $757,600 | $762,727 | 59 | N/A | AI Deep Dive |
| Thrive Support & Advocacy INC | Other Services (except Public Administration) | $734,900 | $740,719 | 231 | N/A | AI Deep Dive |
| Persivia, Inc. | Professional, Scientific, and Technical Services | $673,991 | $679,196 | 32 | $6.6M | AI Deep Dive |
| Dav-Tech Plating INC | Manufacturing | $645,375 | $650,825 | 65 | $15.9M | AI Deep Dive |
| Corero Network Security, Inc. | Professional, Scientific, and Technical Services | $637,000 | $640,944 | 31 | $6.4M | AI Deep Dive |
| Marlborough Wcp Hotel L.l.c. | Accommodation and Food Services | $620,071 | $625,269 | 114 | $35.6M | AI Deep Dive |
| Marie Esther Health Center INC | Health Care and Social Assistance | $601,800 | $604,751 | 500 | $85.1M | AI Deep Dive |
| Wakefly, Inc. | Professional, Scientific, and Technical Services | $601,700 | $605,695 | 28 | <$5M | AI Deep Dive |
| Louis Kuchnir MD PC | Health Care and Social Assistance | $598,670 | $606,740 | 35 | $11.0M | AI Deep Dive |
| J Lee Associates | Professional, Scientific, and Technical Services | $594,900 | $598,926 | 50 | $5.2M | AI Deep Dive |
| Guardian Energy Management Solutions,llc | Construction | $592,785 | $596,618 | 26 | $8.6M | AI Deep Dive |
| Uwd Acquisition LLC | Manufacturing | $586,900 | $591,370 | 34 | $33.7M | AI Deep Dive |
| Wellen Construction Co. INC | Construction | $580,500 | $583,681 | 29 | $33.0M | AI Deep Dive |
| Rb Hotel Marlborough LLC | Accommodation and Food Services | $579,400 | $586,083 | 63 | $19.7M | AI Deep Dive |
| 110 Grill Ac Marlboro LLC | Accommodation and Food Services | $575,241 | $580,642 | 34 | $6.0M | AI Deep Dive |
| Wakefly INC | Professional, Scientific, and Technical Services | $565,499 | $569,677 | 27 | <$5M | AI Deep Dive |
| Bwt Pharma and Biotech, Inc. | Manufacturing | $563,900 | $566,526 | 30 | $29.8M | AI Deep Dive |