Andrea Wagner is walking through the back of the cavernous Berkshire Corporate Center on Pleasant Street. She points out various laboratory facilities that her company, Berkshire Sterile Manufacturing, has built in the former warehouse, which was originally used to store toys. These labs rest like islands in an ocean of open space, but Wagner sees these empty areas as a plus. “We occupy about 40,000 square feet,” said Wagner, senior vice president of business development and one of the firm’s three owners. “We have 120,000. We have a lot of growth potential.” Read more about BSM and biotech potential success in the Berkshires >>