Geo-Logic Associates

What Geo-Logic Associates does

Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil, and geotechnical engineering consulting firm headquartered in Ontario, California. Founded in 1991, the firm operates through 30 offices across the U.S. and Peru and is staffed by 400+ credentialed professionals including civil and geotechnical engineers, hydrogeologists, geologists, environmental scientists, and certified specialists in stormwater, GIS, and laboratory services. Service lines span solid waste management, mining, environmental/contaminated site remediation, water resources, geology and hydrogeology, laboratory testing, agricultural water consulting, and environmental litigation/expert witness work. The firm ranks #245 on ENR's 2024 Top 500 Design Firms and #134 on the Top 200 Environmental Firms, with international work comprising approximately 20% of 2023 revenue across Brazil, Bulgaria, Canada, Turkey, and Peru.

GLA's core proprietary technology is its Enhanced Metal Recovery (EMR) injection leaching process — steel-cased wells installed in heap leach pads with proprietary zone-isolation tooling — used to recover previously unextracted gold, silver, and copper; the firm claims the most extensive deployment of this approach internationally, with seven mines completed in three countries since 2015. GLA also operates construction quality assurance, geoelectric liner leak detection, and Anaerobic Membrane Bioreactor (AnMBR) techniques for nitrate/selenium removal in power-plant applications.

The firm operates a professional services revenue model under project-based and multi-year retainer contracts with municipal, county, state, and federal government clients as well as enterprise customers across mining, waste management, semiconductor, energy, and infrastructure. Services are delivered directly through wholly-owned subsidiary brands (Clear Creek Associates, Daniel B. Stephens & Associates, Kunkel Engineering Group, John Shomaker & Associates, Loughlin Water Associates, RGH Consultants, Summit Water Resources, The MINES Group, Geo-Logic Peru), preserving each subsidiary's specialist identity under a consolidated operating entity. GLA has pursued programmatic M&A as its primary growth lever, executing four acquisitions between 2021 and 2026.

Name

Geo-Logic Associates

Legal name

Geo-Logic Associates, Inc.

Website

https://geo-logic.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

101–250 employees

Short description

Geo-Logic Associates (GLA) is an employee-owned U.S. engineering consultancy providing environmental, civil, geotechnical, water, and mining services to government agencies and enterprises, with 400+ staff across 30 U.S. and Peru offices and a proprietary Enhanced Metal Recovery injection-leaching technology.

Ownership category

akta.pro rank

Product category

Environmental & Geotechnical Engineering Consulting

NAICS

Environmental Consulting Services (54162), Geophysical Surveying and Mapping Services (54136), Support Activities for Mining (2131), Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro industry

PRIMARYBPAHAIAB

Geotechnical & Subsurface Engineering Consulting

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Engineering & Technical Consulting

SECONDARYIMAKAOAN

Geotechnical, Hydrogeological & Seismic Engineering (Slope Stability, Ground Support, Dewatering)

Industrials, Manufacturing & Construction/Metals & Mining/Mine Development, Engineering & EPC (Design, Construction, Closure & Reclamation)

SECONDARYBPAHAIAD

Water, Wastewater & Hydraulics Engineering Consulting

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Engineering & Technical Consulting

SECONDARYEUAHAFAE

Geotechnical Site Investigation & Engineering Geology (Borings, Lab Testing)

Energy, Utilities & Environment/Environmental Compliance, Monitoring & Consulting/Site Assessment & Hydrogeology (Groundwater/Geotechnical)

SECONDARYIMAKAKAA

Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling)

Industrials, Manufacturing & Construction/Metals & Mining/Mining Services & Contracting (Exploration, Drilling, Blasting, Mine Operations)

SECONDARYBPAHAJAK

Waste & Hazardous Materials Management (incl. HazMat)

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Environmental, Health & Safety (EHS) Consulting

Keywords

• Environmental engineering consulting
• Geotechnical engineering services
• Mining consulting services
• Solid waste management consulting
• Water resources engineering

Headquarters

HQ city

Ontario

HQ country

United States

HQ region

North America

Offices30 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Engineering Consulting Services: Project-based consulting fees for environmental, civil, and geotechnical engineering services. Revenue generated through hourly rates, fixed-fee projects, and retainer arrangements with government agencies and private sector clients. Mix of one-time project fees and ongoing service contracts.
2. Construction Quality Assurance Services: Field services and materials testing during construction of landfills, mines, and infrastructure projects. Revenue from on-site technical oversight and laboratory testing services.
3. Enhanced Metal Recovery Services: Injection leaching services for mining clients resulting in recovery of additional ounces of gold, silver, and copper. Revenue generated through project fees with short-term return on investment as project revenue is generated within days of first injection.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Geo-Logic Associates is an employee-owned multidisciplinary environmental, civil, and geotechnical engineering consulting firm that delivers project-based professional services to mining companies, municipal governments, solid waste operators, water utilities, and industrial clients. The firm offers consulting across solid waste management, mining, environmental remediation, water resources, geotechnical engineering, geology/hydrogeology, laboratory testing, and litigation/expert witness support, plus proprietary Enhanced Metal Recovery (EMR) heap leach injection technology for mining clients.

Product overview

Geo-Logic Associates (GLA) is an employee-owned, multidisciplinary environmental, civil, and geotechnical engineering consulting firm. The company offers a comprehensive portfolio of professional services organized by market sectors: Civil Engineering, Construction Support, Environmental Services, Environmental Litigation/Expert Services, Geotechnical/Geoenvironmental Engineering, Solid Waste Services, Mining Services, Water Resources, Geology & Hydrogeology, Laboratory Services, Agricultural Services, and UAV Aerial Reconnaissance. Additionally, the firm has developed proprietary Enhanced Metal Recovery (EMR) technology for heap leach injection in mining operations. These services are delivered through multiple subsidiary companies including Clear Creek Associates, Daniel B. Stephens & Associates, Geo-Logic Peru, Kunkel Engineering, John Shomaker & Associates, Loughlin Water Associates, RGH Consultants, Summit Water Resources, and The MINES Group, across 30 offices in the U.S. and abroad.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Civil engineering services including grading and earthwork calculations, lined containment structure design, municipal engineering, plans/specifications/opinions of cost, stormwater engineering, and water/wastewater engineering for public and private clients.
• Construction Support Construction support services including bidding assistance, construction quality assurance (CQA), geoelectric liner leak detection, mobile/field laboratories, and soil/construction materials testing for landfill, mining, and infrastructure projects.
• Environmental Services Environmental consulting including environmental monitoring, environmental studies, fate and transport modeling, carbon management services, PFAS investigations, remedial design/operations/maintenance, site closure, and site investigation/characterization.
• Environmental Litigation / Expert Services Expert witness and litigation support services for contaminated sites, indoor air/vapor intrusion/risk assessment, mining, PFAS investigations, vadose zone hydrology, and water rights disputes.
• Geotechnical / Geoenvironmental Engineering Geotechnical and geoenvironmental engineering services including earth retaining structures/excavation, earthquake engineering, geohazard mitigation, foundation engineering, brownfield site redevelopment, geotechnical laboratory services, and water retention/conveyance/infiltration.
• Solid Waste Services Comprehensive solid waste consulting including compliance/permitting, compost facility services, cover design, GLA-Data management, environmental monitoring, environmental remediation, expansion design, landfill gas system design/monitoring/operations, leachate management, planning services, Senate Bill 1383 compliance, and stormwater compliance/design.
• Mining Services Mining engineering and consulting services including construction management/CQA, enhanced metal recovery/injection leaching, environmental services/risk assessments, facility closure/reclamation/remediation, feasibility studies, geotechnical/geological/civil engineering, heap leach pads/ponds/tailings dams, hydrology/hydrogeology/water supply management, planning/permitting, and SMARA compliance.
• Water Resources Water resources engineering and consulting including GLA-Data, environmental litigation/expert services, groundwater modeling, groundwater recharge/reuse, stormwater management, water resources planning, water storage/distribution systems, watershed management, water/wastewater engineering, and wells/wellfields.
• Geology & Hydrogeology Geology and hydrogeology services including fault investigations, geologic mapping, landslide investigations, shear wave velocity and seismic refraction surveys, soil characterizations, subsurface geologic investigations, aquifer testing/analysis, aquifer delineation/characterization, groundwater flow/quality modeling, and well design/installation/development/abandonment.
• Laboratory Services Laboratory testing and analysis services including soil properties testing, lab and field QA/QC testing, research/development, sensor calibration, and instrumentation/automation.
• Agricultural Services Agricultural water consulting services including hydrologic analyses, nitrate and selenium treatment, permitting/regulatory compliance, water quality investigations/treatment, water recycling/reuse, water resources planning, water rights, and water supply development.
• UAV Aerial Reconnaissance FAA-compliant aerial image collection and processing services including 3D mapping/site documentation, high resolution photography, 4K videography/professional editing, photogrammetry/engineering analysis, and UAV/plane/alternate data collection methods.
• Enhanced Metal Recovery (EMR) Proprietary heap leach injection process using steel-cased wells to recover previously unrecoverable gold, silver, and copper from mining operations; deployed at seven mines in three countries since 2015.

Quantifiable outcome

• Recovery of tens of thousands of additional ounces of gold, silver, and copper for mining clients
• +4 more outcomes

Named customers25 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core.

• RGH ConsultantscoreOthers · 1 January 2025Wholly-owned subsidiary acquired in 2025. Office in Santa Rosa, CA with Principal Geotechnical Engineer Eric Chase. Expands GLA's geotechnical capabilities in Northern California.
• Summit Water Resources, LLCcoreOthers · 1 January 2022Wholly-owned subsidiary specializing in groundwater supply and water resource management. Headquartered in Portland, OR with offices in Camas, WA. Specializes in aquifer storage and recovery (ASR) investigations and water rights consulting in the Pacific Northwest.
• The MINES Group, Inc.coreOthers · 1 January 2021Wholly-owned subsidiary providing multidisciplinary geoenvironmental consulting and engineering for the mining industry. Operates from Reno, NV office. Remained intact as an entity under GLA umbrella upon acquisition in May 2021.
• Clear Creek AssociatescoreOthersWholly-owned subsidiary specializing in hydrogeological and mining environmental services. Operates offices in Arizona (Scottsdale and Tucson) with Principal Hydrogeologist Geno Mammini and Senior Hydrogeologist Jamie Kennealy leading operations. Provides water resources and environmental consulting for mining operations.
• Daniel B. Stephens & Associates, Inc. (DBS&A)coreOthersWholly-owned subsidiary providing environmental consulting and engineering. Headquarters in Albuquerque, NM with offices in Austin, TX, Lubbock, TX, and Silver Spring, MD. President Gundar Peterson serves as Vice President of GLA and Operations Unit Manager.
• Geo-Logic PerucoreOthersWholly-owned subsidiary providing geotechnical and environmental consulting in Peru. Office in Lima's San Isidro district with General Manager Veronica Rodriguez leading Latin America operations. Specializes in mining, energy, construction, and infrastructure sectors.
• Kunkel Engineering GroupcoreOthersWholly-owned subsidiary providing municipal consulting services. Operating out of two Wisconsin offices (Beaver Dam and West Bend) providing civil engineering, building inspection, GIS, and environmental services. Merged with GLA in December 2010.
• John Shomaker & Associates, Inc. (JSAI)coreOthersWholly-owned subsidiary specializing in water resources. Headquarters in Albuquerque, NM. Operations Unit Manager Roger Peery leads the subsidiary. Platinum Sponsor of 2026 Annual Salinity Summit organized by Multi-State Salinity Coalition.
• Loughlin Water Associates, LLCcoreOthersWholly-owned subsidiary providing groundwater supply and hydrogeological consulting. Office in Park City, Utah with Principal Hydrogeologist Bill Loughlin leading the practice.

Scale indicators8 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Stantec: Large publicly listed global design and engineering firm with environmental, water, mining, and geotechnical practices; competes with GLA on enterprise and government pursuits but with broader portfolio and larger scale.
• Arcadis: Global design and consultancy with significant environmental, water, and mining exposure; competes for larger enterprise and government contracts where GLA also participates.
• Slope Indicator / GHD: International engineering, environmental, and construction services firm with mining, water, and geotechnical capabilities — comparable at the multi-disciplinary level with significantly broader geographic reach.
• WSP Global: Major global engineering professional services firm with environmental, mining, geotechnical, and water practices following acquisitions including Golder; competes with GLA across multiple geographies and sectors.

Direct peers

• Brown and Caldwell: Environmental engineering and consulting firm focused on water, wastewater, and remediation for municipalities and industry — overlapping with GLA's Water Resources and Environmental Services practices.
• Tetra Tech: Global consulting and engineering firm with deep environmental, water, and mining practices that directly compete with GLA across multiple service lines and target clients including mining operators and government agencies.
• Geosyntec Consultants: Employee-owned environmental and geotechnical consulting firm specializing in site investigation, remediation, water resources, and mining support — directly comparable in ownership structure, service mix, and client base to GLA.
• Haley & Aldrich: Employee-owned geotechnical and environmental engineering consulting firm serving similar private and government clients across solid waste, water, and infrastructure — directly comparable in size, scope, and ownership model.
• Kleinfelder: Engineering, scientific, and construction management firm with strong geotechnical, environmental, and water resources practices serving mining, solid waste, and municipal clients — closely aligned in capabilities and target customers.

Emerging players

• Vector Engineering: Mid-sized geotechnical, environmental, and mining consulting firm focused on heap leach and tailings engineering — partial overlap with GLA's mining practice and a potential competitor in the EMR adjacent space.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/geo-logic-associates-inc

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries9 records

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about Geo-Logic Associates