GZA GeoEnvironmental, Inc. is a consulting firm providing geotechnical, environmental, water, ecological, and construction management services to a wide array of private and public clients. The company was founded in 1964 and is headquartered in Norwood, Massachusetts. GZA has over 700 employees and operates 30 offices in the United States. The company has worked on projects in a variety of industries, including energy, transportation, real estate, and manufacturing.