DemandWare, which builds and operates online stores for merchandisers, has raised $15 million in a fourth round funding. Previous funds raised were $44 million, according to peHUB, which brings the total to $59 million including today’s round.  Investors include General Catalyst Partners, North Bridge Venture Partners and T-Venture Holding. 

DemandWare, based in Massachusetts, acts as an outsourced online store operator. The company works with merchandisers who do not want to invest in and run the technical aspects of an e-commerce store.  Clients include retailer Barneys, Zabars, and Nine West, among others.