Welcome to CSM

CSM Engineering P.C., is a multi-disciplined professional engineering and engineering construction inspection firm serving Long Island and the greater New York City Metropolitan Area, specializing in civil engineering, water/wastewater, and transportation projects.

Founded in 1999, the firm is centrally located in Nassau County. CSM is a New York State-certified Minority-Owned Business Enterprise (MBE), Women-Owned Business Enterprise (WBE), and Disadvantaged Business Enterprise (DBE). Our staff consists of electrical, mechanical, civil engineers, and certified construction inspectors, located throughout Long Island and the NYC Metropolitan Area. Delivering successful projects over the years has gained the confidence of governmental agencies, local municipalities, and prime engineering consultant firms. CSM Engineering P.C. has earned a distinct reputation in the Engineering and Construction industry.