| Heywood Medical Group INC | Health Care and Social Assistance | $2,753,855 | $2,761,352 | 311 | $97.6M | AI Deep Dive |
| Seaman Paper Co of Ma INC | Manufacturing | $2,511,177 | $2,542,985 | 149 | $147.8M | AI Deep Dive |
| New England Wooden Ware Corporation | Manufacturing | $1,938,585 | $1,959,246 | 149 | $147.8M | AI Deep Dive |
| Maki Building Centers INC | Retail Trade | $1,800,090 | $1,819,041 | 158 | $32.6M | AI Deep Dive |
| Care Central Vna and Hospice Inc. | Health Care and Social Assistance | $1,782,300 | $1,806,114 | 174 | N/A | AI Deep Dive |
| Advanced Cable Ties Inc. | Manufacturing | $1,056,128 | $1,062,699 | 100 | $99.2M | AI Deep Dive |
| Gardner Operations LLC | Health Care and Social Assistance | $1,052,230 | $1,065,120 | 127 | $21.6M | AI Deep Dive |
| Advanced Cable Ties, Inc. | Manufacturing | $1,030,870 | $1,039,690 | 100 | $99.2M | AI Deep Dive |
| Salvadore Auto Exchange, INC | Retail Trade | $977,523 | $983,736 | 84 | $21.2M | AI Deep Dive |
| Data Guide Cable Corporation | Manufacturing | $949,973 | $956,042 | 62 | $16.2M | AI Deep Dive |
| Wood's Ambulance Inc. | Health Care and Social Assistance | $846,660 | $854,964 | 83 | $19.2M | AI Deep Dive |
| Wood's Ambulance, Inc. | Health Care and Social Assistance | $846,600 | $851,267 | 95 | $22.0M | AI Deep Dive |
| Precision Optics Corporation INC | Health Care and Social Assistance | $808,962 | $816,209 | 62 | $14.5M | AI Deep Dive |
| Dennecrepe Corporation | Wholesale Trade | $780,799 | $782,829 | 65 | $16.7M | AI Deep Dive |
| Wachusett Rehabilitation and Nursing Center LLC | Health Care and Social Assistance | $754,587 | $766,640 | 62 | $10.5M | AI Deep Dive |
| Gardner Athol Area Mental Heal | Health Care and Social Assistance | $687,700 | $695,284 | 206 | N/A | AI Deep Dive |
| Cb&b INC | Accommodation and Food Services | $648,166 | $653,032 | 75 | $23.5M | AI Deep Dive |
| Moon Hill Brewing Company Inc. | Accommodation and Food Services | $603,000 | $607,456 | 42 | $7.5M | AI Deep Dive |
| Adolf Jandris & Sons, INC | Manufacturing | $601,181 | $606,435 | 41 | $40.7M | AI Deep Dive |
| E.j. Wyson Trucking INC | Transportation and Warehousing | $562,800 | $566,052 | 38 | $10.1M | AI Deep Dive |
| Royal Steam Heater Co | Construction | $480,277 | $486,441 | 26 | $8.2M | AI Deep Dive |
| Specialized Paper Converting INC | Manufacturing | $473,722 | $479,762 | 44 | $11.5M | AI Deep Dive |
| Cb&b, INC | Accommodation and Food Services | $462,976 | $466,528 | 75 | $23.5M | AI Deep Dive |
| Moon Hill Brewing Co. | Accommodation and Food Services | $285,000 | $287,573 | 93 | $16.5M | AI Deep Dive |
| Blessington Corporation | Manufacturing | $276,000 | $277,472 | 20 | $5.2M | AI Deep Dive |