GZA GeoEnvironmental, Inc.

What GZA GeoEnvironmental, Inc. does

GZA GeoEnvironmental, Inc. is a multi-disciplinary engineering and environmental consulting firm founded in 1964 in Norwood, Massachusetts by Don Goldberg and Bill Zoino. The company is structured as a private, employee-owned firm with 800+ professionals distributed across more than 31 offices throughout the United States, and has reported gross revenues exceeding $100 million annually as of 2019. Its service portfolio spans approximately 20 practice areas, with the heaviest emphasis on geotechnical engineering, GeoStructural/construction engineering, environmental site investigation and remediation (including PFAS and emerging contaminants), EHS regulatory compliance, dams/levees/hydropower, waterfront and coastal engineering, natural resources and ecological services, construction management, and data management/analytics/visualization including 3D modeling and VR/AR solutions for infrastructure.

Revenue is generated through project-based professional engineering consulting engagements executed across multiple verticals: transportation and infrastructure (bridges, highways, airports, tunnels), buildings and real estate development, industrial, water, government (federal, state, local agencies and authorities), institutional, and select legal and agricultural accounts. Commercial model is direct-client engagement through business development and established client relationships, with no disclosed pricing; the firm markets through its corporate website, an annual Walter E. Jaworski Technical Conference, social media, and trade publication thought leadership. Named clients span public-sector (City of Northampton, NASA, Port Authority of New York and New Jersey) and private-sector (Novartis, National Development, Firmenich, Block Island Offshore Wind Farm), with marquee engagements including the Gordie Howe International Bridge and NASA Mobile Launcher 2 (the latter absorbed via the 2025 Siefert Associates asset purchase). The firm has completed over 100,000 projects since founding, including 50,000+ environmental site investigations since the 1970s and 60+ Superfund projects across 8 EPA regions.

Name

GZA GeoEnvironmental, Inc.

Legal name

GZA GeoEnvironmental, Inc.

Website

https://gza.com

Company type

Private

Founded year

1964

Operating status

Operating

Headcount range

501–1,000 employees

Short description

GZA GeoEnvironmental, Inc. is an employee-owned, multi-disciplinary US engineering and environmental consulting firm providing geotechnical, environmental, ecological, water, and construction management services to government, infrastructure, real estate, industrial, energy, and institutional clients.

Ownership category

akta.pro rank

Product category

Engineering & Environmental Consulting Services

NAICS

Environmental Consulting Services (54162), Engineering Services (541330)

SIC

Services-Engineering Services (8711), Services-Management Consulting Services (8742)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

akta.pro secondary industries

Sustainability & ESG Consulting (BPAHACAK), Greenhouse Gas (GHG) & Climate Regulatory Compliance (Mandatory Reporting, Cap-and-Trade Compliance) (EUAHABAG)

Keywords

• Geotechnical engineering consulting
• Environmental site remediation
• Construction management services
• Water resources engineering
• Ecological restoration consulting

Headquarters

HQ city

Norwood

HQ country

United States

HQ region

North America

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D, Infrastructure

Revenue model

1. Professional Engineering Consulting Services: GZA generates revenue through providing geotechnical, environmental, ecological, water, and construction management consulting services to clients. As an employee-owned firm with gross revenues exceeding $100 million annually, they operate on a project-based consulting fee model.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

GZA GeoEnvironmental, Inc. is a multi-disciplinary, employee-owned engineering and environmental consulting firm delivering geotechnical engineering, environmental site investigation and remediation, ecological and natural resources services, water resources and waterfront engineering, construction management, EHS regulatory compliance, and related technical services. With more than 800 professionals across 31 U.S. offices, the firm serves government agencies, industrial and energy clients, real estate developers, contractors, transportation/infrastructure authorities, and institutional customers on projects ranging from site assessments and Superfund remediation to tunneling, dams, offshore wind, and offshore/marine infrastructure.

Product overview

GZA GeoEnvironmental, Inc. is a multi-disciplinary engineering and environmental consulting firm offering a comprehensive portfolio of geotechnical, environmental, ecological, water, and construction management services. The company operates as a unified service delivery model rather than a software platform, providing professional consulting services across multiple practice areas. Core service offerings include Geotechnical Engineering Services, GeoStructural/Construction Engineering, Environmental Site Investigation & Remediation, EHS Regulatory Compliance, Waterfront & Coastal Engineering, Construction Management, and specialized services for dams/hydropower, natural resources, sustainability, and data visualization. The firm serves diverse markets including Agriculture, Buildings & Real Estate Development, Energy, Government, Industrial, Institutional, Legal, Transportation & Infrastructure, and Water sectors. GZA has over 800 professionals operating from offices across the United States, with recent expansion through the acquisition of Siefert Associates (2025).

Differentiator

Problem solved

Functional benefit

Products and services

• Geotechnical Engineering Services Geotechnical engineering design and construction services covering subsurface exploration, foundation evaluation, earth support design, instrumentation, rock slope characterization, tunneling engineering, landfill design, geothermal system design, and related work for foundations, tunnels, dams, utilities, marine facilities, bridges, highways, railroads, airports, building developments, and temporary underground structures.
• GeoStructural/Construction Engineering Combined geotechnical and structural engineering design services including support of excavation systems, anchored retaining walls, ground water control, foundation design, temporary structures, foundation underpinning, demolition and erection, construction sequencing, and contractor delegated design.
• Environmental Site Investigation & Remediation Environmental due diligence, site investigation, and remediation services including Phase I and II Environmental Site Assessments, PFAS and emerging contaminants evaluation, contaminated sediments management, vapor intrusion mitigation, and brownfields redevelopment.
• EHS Regulatory Compliance Environmental Health & Safety regulatory compliance services including air quality permitting, environmental regulatory compliance, health and safety consulting, industrial hygiene services, OSHA compliance, and behavior-based safety programs.
• Waterfront & Coastal Engineering Engineering services for waterfront facilities, coastal structures, piers, docks, and marine construction projects, including design and construction oversight, exemplified by Block Island Offshore Wind Farm.
• Construction Management Construction management services for heavy civil, heavy highway, and marine construction projects, including contractor support services, QA/QC, and construction oversight.
• Dams, Levees, and Hydropower Engineering services for dam and levee design, evaluation, and construction oversight, as well as hydropower facility engineering.
• Natural Resources & Ecological Services Ecological assessment, natural resources management, and environmental monitoring services for various project types, including ecological restoration and conservation management.
• Data Management, Analytics & Visualization Solutions Data management, analytics, and visualization services including 3D modeling, VR, and AR solutions for infrastructure projects.
• Landscape Architecture Landscape architecture services as part of integrated environmental and site design solutions.
• Land Use & Environmental Planning Land use planning and environmental planning services including permitting support and regulatory compliance.
• Site / Civil Engineering & Design Site and civil engineering design services for various development and infrastructure projects.
• Sustainability Services Sustainability consulting services for integrated environmental solutions including energy efficiency and green building practices.
• Water Resources Water resources engineering services including water supply, stormwater management, and hydraulic analysis.
• Natural Hazard Risk Management, Climate Adaptation and Resilience Risk assessment and management services for natural hazards along with climate adaptation and resilience planning.
• Contractor Services Specialized contractor support including geotechnical instrumentation, foundation testing, excavation support design, groundwater controls, and construction field monitoring.
• Building & Property Services Building and property-related engineering and environmental services including property condition assessments.
• MGP (Manufactured Gas Plant) Services Specialized services for former manufactured gas plant site investigation and remediation.
• Agronomy Agronomy and agricultural consulting services for development and environmental projects.
• Water Rights Water rights consulting and permitting services.

Quantifiable outcome

• 50,000+ environmental site investigations completed since the 1970s
• +3 more outcomes

Named customers8 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Siefert Associates, LLCcoreOthers · 2 September 2025GZA acquired the assets of Siefert Associates, LLC, a construction engineering firm with offices in Connecticut, New York, and New Jersey. The acquisition expands GZA's expertise and project portfolio, including notable projects like the NASA Mobile Launcher 2 and the Gordie Howe International Bridge.

Scale indicators7 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Arcadis: Global design and consultancy with significant environmental remediation, water, and resilience practices, directly comparable to GZA on contaminated site and PFAS work.
• Wood Environment & Infrastructure: International consulting and engineering firm with environment, remediation, and infrastructure practices that compete with GZA on government and industrial environmental programs.
• WSP Global: International engineering consultancy with strong environment, earth, and water practices that overlap with GZA's geotechnical, environmental, and transportation-infrastructure services.
• AECOM: Global professional services firm with environmental, geotechnical, transportation, and water practices that overlap materially with GZA's services, especially on large infrastructure and government programs.
• Stantec: North American engineering, environmental, and infrastructure consulting firm with comparable environmental site assessment, geotechnical, water, and community development offerings.
• GHD: Global engineering, environmental, and construction services firm with comparable geotechnical, water, environmental, and infrastructure consulting offerings across multiple verticals.
• Jacobs Solutions: Global engineering and consulting firm with significant geotechnical, environmental remediation, water, and infrastructure capabilities competing with GZA on major public-sector programs.

Direct peers

• Brown and Caldwell: Employee-owned environmental engineering and consulting firm focused on water, environmental remediation, and infrastructure — similar ownership culture and service overlap with GZA's environmental practice.
• Tetra Tech: Large publicly traded environmental and engineering consulting firm with deep overlap in geotechnical, water, environmental site investigation, and remediation services to government and industrial clients — a near-direct competitor to GZA's core practice areas.
• Haley & Aldrich: Employee-owned, multi-disciplinary geotechnical and environmental consulting firm serving buildings, infrastructure, and energy clients — closely comparable in size, ownership model, and service mix to GZA.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/gzageoenv
• YouTubeyoutube.com/channel/UCujAE-zDKuUWCAexhOfMAmg
• LinkedInlinkedin.com/company/37554
• Facebookfacebook.com/gza-geoenvironmental-inc-180045518693736

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A3 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about GZA GeoEnvironmental, Inc.