About Us

D.A. Sullivan & Sons, Inc. (DAS) is a mid-sized General Contracting, Construction Management, and Owner's Project Management firm based in Northampton, Massachusetts. Established in 1897, DAS has served all of New England, primarily the Western Massachusetts area, for 125 years! Personal attention to project management and value to the customer have allowed DAS to remain a competitive presence in both the public and private construction markets.