| TSThe Sharp Woodworking Company | Canton | MA | Furniture and Related Product Manufacturing337110 | 1-19 | ◇ UNVERIFIED |
| TWThe White Lion Brewing Company LLC | Springfield | MA | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◇ UNVERIFIED |
| TPTissue Plus, LLC | Lynn | MA | Paper Manufacturing322291 | 1-19 | ◇ UNVERIFIED |
| TITodrin Industries, INC. | Lakeville | MA | Fabricated Metal Product Manufacturing332322 | 1-19 | ◇ UNVERIFIED |
| TTTool Technology Inc. | Middleton (town of) | MA | Fabricated Metal Product Manufacturing332710 | 1-19 | ◇ UNVERIFIED |
| TSTOPGUN Snowmaking Inc | Hinsdale | MA | Miscellaneous Manufacturing339920 | 1-19 | ◇ UNVERIFIED |
| TLTop Line Granite Design Inc. | Tyngsboro | MA | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| TPTravers Printing INC | Gardner | MA | Printing and Related Support Activities323110 | 1-19 | ◇ UNVERIFIED |
| TITrimBoard, Inc. | Springfield | MA | Wood Product Manufacturing321912 | 1-19 | ◇ UNVERIFIED |
| TMTrio MLP Corporation | Boston | MA | Food Manufacturing311811 | 1-19 | ◇ UNVERIFIED |
| TCTriple Crown Cabinets & Millwork Corp. | Sandwich (census name for sand | MA | Furniture and Related Product Manufacturing337110 | 1-19 | ◇ UNVERIFIED |
| TPTriumph Play Systems | Ashburnham | MA | Furniture and Related Product Manufacturing337124 | 1-19 | ◇ UNVERIFIED |
| TBTrue Bounce, Inc. | New Bedford | MA | Miscellaneous Manufacturing339920 | 1-19 | ◇ UNVERIFIED |
| TETuftane Extrusion Technologies Incorporated | Fall River | MA | Plastics and Rubber Products Manufacturing326113 | 1-19 | ◇ UNVERIFIED |
| UPUpstart Power INC | Southborough | MA | Electrical Equipment, Appliance & Component Manufacturing335999 | 1-19 | ◇ UNVERIFIED |
| UNUrsa Navigation Solutions, Inc. | North Billerica | MA | Computer and Electronic Product Manufacturing334511 | 1-19 | ◇ UNVERIFIED |
| UBU.S. Bedding, Inc. | Fall River | MA | Furniture and Related Product Manufacturing337910 | 1-19 | ◇ UNVERIFIED |
| USU.s. Sheetmetal INC. | West Bridgewater | MA | Machinery Manufacturing333414 | 1-19 | ◇ UNVERIFIED |
| ULUva Lidkoping INC | Milford | MA | Machinery Manufacturing333517 | 1-19 | ◇ UNVERIFIED |
| VMValley Malt LLC | Hadley | MA | Food Manufacturing311213 | 1-19 | ◇ UNVERIFIED |
| VVVanished Valley, Inc. | Ludlow | MA | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◇ UNVERIFIED |
| VSVillage Signs, INC. | Mattapoisett | MA | Miscellaneous Manufacturing339950 | 1-19 | ◇ UNVERIFIED |
| VSVitamin Sea Brewing, LLC | East Weymouth | MA | Beverage and Tobacco Product Manufacturing312120 | 1-19 | ◇ UNVERIFIED |
| WDWard Dental Lab, Inc | Medford | MA | Miscellaneous Manufacturing339116 | 1-19 | ◇ UNVERIFIED |
| WCWaveguide Corporation | Cambridge | MA | Chemical Manufacturing325998 | 1-19 | ◇ UNVERIFIED |
| WCWelding Craftsmen | South Easton | MA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◇ UNVERIFIED |
| WAWide Angle Marketing, INC. | Hubbardston | MA | Wood Product Manufacturing321999 | 1-19 | ◇ UNVERIFIED |
| WMWindgap Medical INC | Watertown | MA | Miscellaneous Manufacturing339112 | 1-19 | ◇ UNVERIFIED |
| WCWinter & Company, Inc. | Quincy | MA | Printing and Related Support Activities323111 | 1-19 | ◇ UNVERIFIED |
| WPwood palace kitchens inc | Middleboro (census name middle | MA | Furniture and Related Product Manufacturing337110 | 1-19 | ◇ UNVERIFIED |
| WMWorcester Marble & Granite INC. | Middleton | MA | Nonmetallic Mineral Product Manufacturing327991 | 1-19 | ◇ UNVERIFIED |
| WIWovensteel Inc. | East Boston | MA | Fabricated Metal Product Manufacturing332323 | 1-19 | ◇ UNVERIFIED |
| WIWSMD, Inc. | Ludlow | MA | Wood Product Manufacturing321911 | 1-19 | ◇ UNVERIFIED |
| XPXpression Prints, INC. | Franklin | MA | Printing and Related Support Activities323113 | 1-19 | ◇ UNVERIFIED |
| YBYum Bunnies Cakery, inc. | Belmont | MA | Food Manufacturing311811 | 1-19 | ◇ UNVERIFIED |