We partner with you to solve complex challenges in natural and built environments

Full Lifecycle Coverage

    • Environmental Assessment
    • Building Hazard Assessment
    • Groundwater & Surface Water Supply Studies
    • Hydroelectric Engineering & Studies
    • Noise Studies
    • Natural Resources Assessment
    • Aquatic Toxicity Studies

  • Test

Our work speaks for itself

GZA provided a Level I Property Condition Assessment for the building which included an evaluation of building maintenance records, a…

View Case Study for 370 Lexington Avenue Level I Property Condition Assessment

370 Lexington Avenue Level I Property Condition Assessment

GZA developed a “pre-load remediation strategy” for the two acres of vegetated wetland that provides access to the work area…

View Case Study for Massachusetts Wetland Area Remediation

Massachusetts Wetland Area Remediation

GZA prepared construction documents and oversaw demolition of the existing fuel dispenser system, underground storage tank (UST) and AST at…

View Case Study for Above Ground Fuel Facility NJDOT Branchville Maintenance Yard

Above Ground Fuel Facility NJDOT Branchville Maintenance Yard

GZA delineated wetlands and conducted three site visits to locate and document vernal pools and conduct wetland assessments. The original…

View Case Study for Agrivoltaic Solar Energy Dual Use Project

Agrivoltaic Solar Energy Dual Use Project

The City retained GZA as one of three on-call coastal engineering firms in 2015. GZA then bid against the other…

View Case Study for Al Bennett Fishing Pier Replacement

Al Bennett Fishing Pier Replacement

GZA works nationwide Get in Touch
36
Offices in 17 States
800+
Professionals & Employee-Owners
60
Years of Excellence
$3.2B
Total Project budgets in 2025

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GZA GeoEnvironmental, Inc. & Siefert Associates

We are pleased to announce that GZA has purchased assets of Siefert Associates and Siefert Associates’ employees have joined GZA.

Dam and Levee Engineering and Design