Established in 1899, the Weston & Sampson family of companies offers environmental and infrastructure services to the Northeastern region of the United States. Weston & Sampson Engineers, the parent company, provides engineering consulting to the public and private sectors on a range of disciplines, from water treatment to landscape architecture. Founded in 1992, Weston & Sampson Services offers preventive maintenance and emergency on-call operation and maintenance services for water and wastewater treatment systems and facilities for municipal, industrial and commercial clients. Water & Waste Equipment has provided water and wastewater equipment and sales and support since 2003. Weston & Sampson is located in Peabody, Mass.