John E. Green Company
ConstructionMichigan, United States201-500 Employees
John E. Green Company, founded in 1909 in Highland Park, Michigan, began as a plumbing and heating business started with limited capital. Its founders' descendants expanded into industrial and institutional markets, forming the core of the present company. Today, JEG operates as a mid-sized national contractor in mechanical contracting and fire suppression, aiming to improve project delivery through innovation and its core values of safety, quality, integrity and service. The firm has built extensive experience installing various mechanical systems, underpinning its depth of expertise in the field. Its clients include industrial and institutional facilities seeking comprehensive mechanical and fire suppression solutions. Engineering News-Record recognizes JEG as one of the largest specialty contractors in the United States.