About Us

da_sullivan1D. A. Sullivan & Sons, Inc. (DAS) is a mid-sized General Contracting / Construction Manager / Owner's Project Manager firm based in Northampton, Massachusetts.

Established in 1897, DAS has served all of New England, but primarily the Western Massachusetts area for over one hundred years. With annual sales of $25-$30 million, DAS typically manages 4-7 projects a year.  Well regarded in the construction industry, DAS maintains deeply rooted ties to the surrounding communities.

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.

da_sullivan2Our long established ties with the institutions, businesses, and municipalities in the surrounding communities further our commitment to quality construction.  Maintaining a low overhead and managing a finite number of projects per year, DAS can guarantee the personal attention and commitment required to bring a project to completion.

Recognized as a leader in the local construction industry, DAS has and continues to set a high standard of excellence.  Because we are a mid-sized firm, a client can be assured of the personal attention that few firms can match.

The Staff at DAS shares in our commitment to quality.  Many of our employees have been with us for over 20 years. Some represent a second generation of their family's involvement with our firm.  Accordingly, our overall Management philosophy is one of personal attention, quality, and long-term dedication to an Owner. This generally fosters relationships with an Owner that last well beyond the lifetime of a project.


Phone 413-584-0310

Fax 413-585-5710

Office Location
82- 84 North Street
Northampton, MA 01060

Office Hours
Monday - Friday: 7am to 5pm

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