| Kanzaki Specialty Papers Inc. | Manufacturing | $2,767,300 | $2,799,431 | 164 | $162.7M |  Research |
| Quabbin Wire & Cable Co INC | Manufacturing | $1,660,355 | $1,676,221 | 99 | $25.9M | Research |
| All Parts Racing LLC | Transportation and Warehousing | $212,500 | $213,938 | 26 | <$5M | Research |
| Gillespie Corporation | Manufacturing | $206,470 | $208,529 | 15 | <$5M | Research |
| Gillespie Corporation | Manufacturing | $206,000 | $207,614 | 16 | <$5M | Research |
| All Parts Racing LLC | Transportation and Warehousing | $198,559 | $200,681 | 14 | <$5M | Research |
| Moulton Insurance Agency INC | Finance and Insurance | $194,300 | $195,989 | 16 | $8.2M | Research |
| Dr. Zhiqiang Huang, Dmd, PC | Health Care and Social Assistance | $174,174 | $175,782 | 12 | <$5M | Research |
| Garlic Inc. | Accommodation and Food Services | $160,300 | $162,642 | 21 | <$5M | Research |
| R. E. Cluett, INC | Retail Trade | $148,642 | $149,683 | 22 | $6.7M | Research |
| Axis Cnc Incorporated | Manufacturing | $142,000 | $142,836 | 7 | <$5M | Research |
| Teresa's Restaurant of Ware, Inc. | Accommodation and Food Services | $140,500 | $141,702 | 49 | $8.7M | Research |
| Guzik Motor Sales, Inc. | Retail Trade | $139,100 | $140,313 | 12 | <$5M | Research |
| St. James Hospital for Animals, Inc. | Professional, Scientific, and Technical Services | $135,300 | $136,957 | 19 | <$5M | Research |
| Dhillon Family & Cosmetic Dentistry LLC | Health Care and Social Assistance | $134,837 | $136,303 | 10 | <$5M | Research |
| Jrz Enterprise Inc. | Accommodation and Food Services | $126,500 | $128,447 | 20 | <$5M | Research |
| St. James Hospital for Animals Inc. | Professional, Scientific, and Technical Services | $125,100 | $126,890 | 17 | <$5M | Research |
| Wicked Wings Ware INC | Accommodation and Food Services | $117,600 | $118,247 | 22 | <$5M | Research |
| Garlic, Inc. | Accommodation and Food Services | $113,300 | $114,496 | 16 | <$5M | Research |
| Dhillon Family & Cosmetic Dentistry LLC | Health Care and Social Assistance | $108,203 | $109,359 | 10 | <$5M | Research |
| Hakim & Safi M.d., LLC | Health Care and Social Assistance | $94,200 | $94,946 | 12 | <$5M | Research |
| Jrz Enterprise INC | Accommodation and Food Services | $90,400 | $91,555 | 25 | <$5M | Research |
| Wicked Wings Ware, Inc. | Accommodation and Food Services | $85,400 | $86,133 | 22 | <$5M | Research |
| Industrial Power Services | Utilities | $77,522 | $80,899 | 5 | N/A | Research |
| Pioneer Valley Environmental LLC | Professional, Scientific, and Technical Services | $75,800 | $76,360 | 10 | <$5M | Research |