GZA is an employee-owned multidisciplinary engineering consulting firm with a history of more than 50 years of providing innovative engineering solutions to improve the natural and built environment. We are an ENR Top 500 Design firm focused on geotechnical, environmental, water, ecological, and construction management services. With a staff of interrelated professionals dedicated to providing high-level expertise on complex projects above, below and at ground-level, GZA’s experts provide seamless integration across practice areas, client type, and location.