| Springfield Terminal Railway Company | Transportation and Warehousing | $10,000,000 | $10,117,778 | 500 | $126.8M |  Research |
| Interstate Electrical Services Corp. | Construction | $8,572,700 | $8,682,716 | 500 | $164.5M | Research |
| W L French Excavating Corp | Manufacturing | $5,280,233 | $5,343,302 | 239 | $62.6M | Research |
| Alert Innovation Inc. | Manufacturing | $3,077,085 | $3,112,813 | 180 | $47.1M | Research |
| Dgi Communications, LLC | Professional, Scientific, and Technical Services | $2,375,000 | $2,402,313 | 127 | $26.3M | Research |
| South Shore Gunite Pools and Spas, Inc. | Construction | $2,271,900 | $2,298,342 | 109 | $37.1M | Research |
| Medford Wellington Service Co, Inc. | Construction | $2,138,500 | $2,161,994 | 119 | $37.6M | Research |
| Dgi Communications LLC | Professional, Scientific, and Technical Services | $2,000,000 | $2,018,056 | 130 | $18.2M | Research |
| Medford Wellington Service Co. Inc. | Construction | $1,994,910 | $2,007,590 | 118 | $37.3M | Research |
| Siegel Egg Co. Inc. | Wholesale Trade | $1,517,205 | $1,532,461 | 89 | $22.9M | Research |
| Guardian Angel Senior Services, INC | Health Care and Social Assistance | $1,500,000 | $1,052,280 | 340 | $58.2M | Research |
| J&j Contractors, INC | Construction | $1,197,700 | $0 | 75 | $85.5M | Research |
| Segue Manufacturing Services LLC | Manufacturing | $1,140,300 | $0 | 86 | $22.5M | Research |
| Guarino's Swimming Pool Service, Inc. | Construction | $804,500 | $812,299 | 48 | $16.4M | Research |
| Sterling Corporation | Transportation and Warehousing | $762,600 | $766,841 | 59 | $8.9M | Research |
| Khd INC | Retail Trade | $714,600 | $719,940 | 63 | $16.5M | Research |
| Setronics Corp. | Real Estate and Rental and Leasing | $705,000 | $666,912 | 42 | $19.0M | Research |
| A. Spolidoro & Sons, Inc. | Construction | $695,200 | $699,062 | 55 | $17.4M | Research |
| Sanford Contracting Inc. | Construction | $614,750 | $621,803 | 28 | $9.5M | Research |
| Sanford Contracting, Inc. | Construction | $614,700 | $618,047 | 30 | $10.2M | Research |
| Marquis Tree Service INC | Administrative and Support and Waste Management | $600,058 | $603,192 | 38 | $8.2M | Research |
| Si2 Technologies, Inc. | Professional, Scientific, and Technical Services | $575,500 | $73,569 | 32 | $6.6M | Research |
| Poirier & Springer, Inc. | Construction | $571,600 | $575,760 | 30 | $9.5M | Research |
| Hanlon Sheet Metal Contractors Inc. | Construction | $524,067 | $526,206 | 41 | $13.0M | Research |
| Hanlon Sheet Metal Contractors, Inc. | Manufacturing | $524,000 | $526,900 | 38 | $9.3M | Research |