| Tighe & Bond INC | Professional, Scientific, and Technical Services | $9,690,000 | $0 | 411 | $50.7M |  Research |
| Advance Mfg. Co., Inc. | Manufacturing | $3,552,900 | $3,593,685 | 227 | $55.5M | Research |
| Elm Electrical. Inc. | Construction | $3,410,000 | $3,448,771 | 197 | $64.8M | Research |
| Onsite Mammography, LLC | Health Care and Social Assistance | $2,186,600 | $2,211,102 | 177 | $41.0M | Research |
| Westfield Electroplating Company Inc. | Manufacturing | $2,157,475 | $2,182,301 | 167 | $40.8M | Research |
| Jarvis Surgical, Inc. | Manufacturing | $1,463,300 | $1,422,243 | 79 | $19.3M | Research |
| Jarvis Surgical INC | Manufacturing | $1,399,349 | $1,410,237 | 75 | $20.9M | Research |
| Millennium Power Services, Inc. | Other Services (except Public Administration) | $1,237,800 | $1,247,736 | 60 | $12.9M | Research |
| Millennium Power Services INC | Other Services (except Public Administration) | $1,237,800 | $1,244,922 | 60 | $12.9M | Research |
| Palmer Dedicated Logistics LLC | Transportation and Warehousing | $1,170,952 | $1,176,983 | 104 | $15.7M | Research |
| Air Compressor Engineering Company, Inc. | Wholesale Trade | $1,165,500 | $1,176,229 | 59 | $18.1M | Research |
| Palmer Dedicated Logistics, LLC | Transportation and Warehousing | $1,139,200 | $1,185,881 | 104 | $21.0M | Research |
| Industrial Precision INC | Manufacturing | $1,092,905 | $1,100,586 | 66 | $17.3M | Research |
| Industrial Precision INC | Manufacturing | $1,078,692 | $1,084,924 | 50 | $12.2M | Research |
| Dion Label Printing, Inc. | Administrative and Support and Waste Management | $1,008,465 | $1,013,604 | 80 | $15.1M | Research |
| J Dirats & Co INC | Professional, Scientific, and Technical Services | $993,827 | $999,514 | 66 | $13.3M | Research |
| Rwc INC | Administrative and Support and Waste Management | $932,745 | $944,404 | 61 | $13.2M | Research |
| Ashgage LLC | Accommodation and Food Services | $845,000 | $849,793 | 261 | $46.3M | Research |
| Atg Patriot LLC | Retail Trade | $838,890 | $849,609 | 60 | $15.7M | Research |
| Erp Center for Excellence INC | Professional, Scientific, and Technical Services | $811,731 | $818,540 | 40 | $8.3M | Research |
| Erp Center for Excellence, INC | Professional, Scientific, and Technical Services | $811,730 | $818,021 | 40 | <$5M | Research |
| Pediatric Associates of Hampden County, Inc. | Health Care and Social Assistance | $736,700 | $741,263 | 44 | $13.8M | Research |
| Industrial Technical Services Inc. | Construction | $732,015 | $735,061 | 83 | $27.3M | Research |
| Transcon Technologies, Inc. | Manufacturing | $726,400 | $732,070 | 84 | $22.0M | Research |
| Dka Pike LLC | Accommodation and Food Services | $710,200 | $714,041 | 187 | $33.2M | Research |