Established in 1959, Cashin Associates, P.C. is an engineering, construction management and environmental consulting firm. Based in Hauppauge, N.Y., the company is a provider of a broad range of services to its vast customer base, such as civil and site engineering, coastal and waterfront management, construction, supervision, solid waste management as well as shorefront engineering. Additionally, Cashin Associates, P.C. offers a range of services, such as due diligence investigations, planning, hazardous materials investigation and many more.