The O'Connell Companies, Inc. Email Format
ConstructionMassachusetts, United States11-50 Employees
The O’Connell Companies, Inc. is a Holyoke-based construction group with roots dating to 1879, when Daniel O’Connell’s Sons was founded and the current organization established in 1979. Through its affiliates, it extends into construction management, property development, and energy and environmental services alongside core construction work. Its affiliates include DOC for New England construction, O’Connell Development Group for real estate development, Appleton Corporation for property and asset management, and NEFCO for biosolids management. The group serves clients needing integrated delivery across construction, development, and environmental services in the regional market. In 2026, the company announced a leadership transition with Joe McMahon becoming President as James Sullivan retires on June 1, 2026.