Developer teams up with manufacturer to produce millions of N95 masks Shawmut has hired 100 people in West Bridgewater and plans to add another 250 within a year By Jon Chesto Globe Staff,Updated March 15, 2021, 7:51 p.m. Email to a Friend Governor Charlie Baker (center) on March 10 toured the Shawmut Corp. plant in West Bridgewater that makes N95 masks He and CEO James Wyner watched a worker finish a mask.John Tlumacki/Globe Staff Some manufacturers that shifted their factories to make personal protective equipment in the early days of the COVID-19 pandemic have reverted back to their primary products. But Shawmut Corp., a fabric manufacturer based in West Bridgewater, is just getting started with its ambitious PPE production effort. Itâs an effort that could make Shawmut one of the largest producers of N95 masks in the country.