Joseph DeFazio

National Association of Energy Service Cos. operates as a nonprofit organization. It engages in the provision of representing and promoting the energy efficiency industry. The company is headquartered in Washington, DC.

Part of Wendel Mechanical LLC /Liner/, Wendel Mechanical is an architecture, engineering, energy efficiency, and construction management firm that provides customized solutions and turnkey projects in innovative ways. Wendel Mechanical is based in Tampa, FL. The company offers a full range of civil engineering services for both private development and public agencies. The company was founded in 1940 by John Wendel. Joseph A. DeFazio has been the CEO of the company since 2022. Wendel Mechanical was acquired by Wendel Mechanical /Liner/ on July 07, 2023.

Wendel Cos. provides engineering and construction management services. Its services include architecture, commissioning, construction management, energy efficiency, engineering and highways, rail and bridges. The company was founded in 1940 and is headquartered in Williamsville, NY.

Wendel Energy Services LLC operates as an energy service company. It helps solve energy, water, and facility problems for clients in industries, municipalities, colleges and universities, and healthcare. The company was founded on December 27, 2001 and is headquartered in Albany, NY.