The O’Connell Companies was established in 1979, but its history dates back to 1879, when Daniel O’Connell, a former superintendent of streets in Holyoke, Massachusetts, founded his construction company, Daniel O’Connell’s Sons (DOC). It was his belief that hard work, integrity, and quality would set his company apart from competitors.

A century later, O’Connell Companies expanded and diversified into the construction management, property development, and energy and environmental services industries. Its affiliates include: DOC, a New England-based construction company; O’Connell Development Group, a real estate development group; Appleton Corporation, a property and asset management firm; and NEFCO, a biosolids management company.

The company’s unique project planning services reflect President James N. Sullivan’s belief that “our projects not only make the world a better place to live but are good for business.”