Geosyntec Consultants
We are engineers, scientists, and innovators.
Last verified: 2026-04-25
- Legal name
- Geosyntec Consultants
- Founded
- 1983
- Employees
- 1000+
- Sub-vertical
- Environmental Compliance
About
Geosyntec Consultants is an employee-owned, private-equity-backed consulting and engineering firm founded in 1983 that works with private and public sector clients to address complex problems involving the environment, natural resources, energy, and civil infrastructure. With more than 2,800 engineers, scientists, and related technical personnel operating from over 130 offices across the United States, Canada, the United Kingdom, Ireland, Sweden, Spain, Finland, the United Arab Emirates, Saudi Arabia, and Australia, Geosyntec delivers services spanning contaminated site assessment and cleanup, civil site engineering, environmental planning, geotechnical engineering, water and natural resources management, air quality management, and transactional due diligence.
Industry
- NAICS
- 5413 54133 54162 54169
- Taxonomy
engineering.environmental_consulting.contaminated_site_remediation
Service area
- Coverage
- Nationwide
- Countries
- US
Pricing
- Models
- Project FixedRetainer
Firm profile
Trust signals
Case studies
- The Boeing Company · Stormwater Treatment Real-Time Control and Monitoring
- CyrusOne, LLC · Air Consulting Services for Data Centers
- City of Stockton · Delta Water Treatment Plan: Groundwater Recharge Improvement Project
- The Nature Conservancy · Stormwater Heatmap development
Services (8)
-
Contaminated Site Assessment And Cleanup
Service-type slug:contaminated-site-assessment-and-cleanup
Geosyntec provides comprehensive contaminated site investigation, remediation design, and cleanup services including groundwater assessment, sediment remediation, PFAS assessment, vapor intrusion mitigation, and brownfield redevelopment planning.
Tags: remediation, brownfields, PFAS, groundwater, vapor-intrusion -
Civil Site Engineering And Design
Service-type slug:civil-site-engineering-and-design
Geosyntec offers civil infrastructure planning, engineering, and design services including brownfield redevelopment, landfill systems, industrial wastewater treatment, dam and levee engineering, and facility decontamination and decommissioning.
Tags: civil-engineering, infrastructure, landfill, wastewater, dam-engineering -
Environmental Planning And Management
Service-type slug:environmental-planning-and-management
Geosyntec delivers environmental permitting and compliance, ESG reporting, occupational safety and health, management systems, process safety management, and global product stewardship services.
Tags: environmental-compliance, ESG, permitting, occupational-safety, product-stewardship -
Transactional Due Diligence And Consultation
Service-type slug:transactional-due-diligence-and-consultation
Geosyntec provides Phase I and Phase II environmental site assessments, environmental liability valuations, and holistic due diligence services to support real estate, insurance, and financial transactions.
Tags: due-diligence, Phase-I-ESA, liability-valuation, environmental-risk, transactions -
Water And Natural Resources
Service-type slug:water-and-natural-resources
Geosyntec offers integrated water resource management, stormwater planning and design, watershed studies, natural resource damage assessments, hydropower licensing, and water rights services.
Tags: water-management, stormwater, natural-resources, watershed, hydropower -
Geotechnical And Geological Analysis Modeling And Engineering
Service-type slug:geotechnical-and-geological-analysis-modeling-and-engineering
Geosyntec provides geotechnical engineering, earthquake engineering, seismic hazard evaluation, earth retaining structures, ground improvement, and geohazard assessment services for a wide range of infrastructure projects.
Tags: geotechnical, seismic, earthquake-engineering, geohazards, ground-improvement -
Air Quality Management And Air Pollution Control
Service-type slug:air-quality-management-and-air-pollution-control
Geosyntec delivers air permitting, air dispersion modeling, greenhouse gas inventory and verification, climate change evaluations, and energy transition and carbon reduction services.
Tags: air-quality, air-permitting, greenhouse-gas, emissions-modeling, carbon-reduction -
Coastal And Waterfront Engineering
Service-type slug:coastal-and-waterfront-engineering
Geosyntec provides coastal engineering, shoreline restoration, offshore geotechnical engineering, marine archaeology, and waterfront infrastructure design services for public and private sector clients worldwide.
Tags: coastal-engineering, shoreline-restoration, offshore, marine, waterfront
Locations (1)
-
Global Headquarters (Phone Only) ·
None, US
+1-866-676-1101
For AI Agents
A2A AgentCard: https://complianceregistry.net/geosyntec/agent-card.json
Skills: get-firm-profile, get-firm-services,
get-firm-locations, request-introduction.
Card carries the TESSA Professional
Services v1 extension — full structured metadata under _meta.
The request-introduction skill captures a project brief and forwards a warm intro
to Geosyntec Consultants. No calendar booking — the firm schedules on its
own systems.
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