Donnelly Mechanical Corporation
ConstructionNew York, United States51-200 Employees
Donnelly Mechanical Corporation is a New York–based construction firm that focuses on commercial HVAC service, maintenance, and related construction work. With more than 30 years of experience, it serves prominent New York City clients across data centers, healthcare facilities, Class-A office spaces, and commercial real estate management firms. In July 2021, the company joined EQUANS' global business line, aligning with a North American group that provides mechanical and electrical construction, energy infrastructure, and building services. Based in Queens Village, New York, the company operates as part of EQUANS North America, a network with a presence across the United States and Canada. In June 2024, Daniel Marchione was promoted to Chief Financial Officer, following nearly six years as the firm’s lead Controller.
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