Geological Resources

What Geological Resources does

Geological Resources, Inc. (GRI) is a privately held boutique environmental consulting firm headquartered in Monroe, North Carolina, with additional offices in Greenville, NC and Pittsburgh, PA. Founded in 1971, the firm delivers three core service lines — Assessment and Corrective Action Services, Real Estate Transaction Services, and Construction Engineering Services — supported by a 24-hour emergency spill response capability. Its work centers on contaminated-site remediation, environmental due diligence for property transfers, and engineering oversight for cleanup projects, with licensed professionals averaging 16 years of industry experience serving as the primary delivery asset.

The firm's revenue model is project-based professional services, priced via custom quotes rather than disclosed rate cards. GRI operates an enterprise field-sales motion with direct delivery at client sites and corporate-office coordination across its regional offices. Customer segments span oil and gas distributors (the primary vertical), real estate counterparties requiring transaction due diligence, and convenience retail operators needing spill response and state regulatory navigation. Over its operating history, the firm has served 1,200+ clients, completed 1,000+ due diligence projects, and achieved 800+ No Further Action (NFA) closures — outcomes it uses as primary credibility signals.

Marketing and demand generation rely on industry events and conferences, organic social media presence, and customer referrals driven by multi-decade client relationships (12–20+ years documented). The firm is independently operated with no disclosed parent company, external investors, funding rounds, acquisitions, or partnerships in the input data. Leadership information is limited to a founder reference (Henry Brown) with no current executive team disclosed.

Name

Geological Resources

Legal name

Geological Resources, Inc.

Website

https://grienv.com

Company type

Private

Founded year

1971

Operating status

Operating

Headcount range

11–50 employees

Short description

Geological Resources is a privately held environmental consulting firm providing site assessment, corrective action, construction engineering, and real estate transaction due diligence services, primarily to oil and gas distributors, real estate clients, and convenience retail operators across the U.S. Southeast and Northeast.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (54162), Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

akta.pro secondary industries

Geotechnical Site Investigation & Engineering Geology (Borings, Lab Testing) (EUAHAFAE), Geotechnical, Hydrogeological & Seismic Engineering (Slope Stability, Ground Support, Dewatering) (IMAKAOAN)

Keywords

• Environmental consulting services
• Site remediation services
• Environmental due diligence
• Construction engineering services
• Emergency spill response

Headquarters

HQ city

Monroe

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consulting Services: Professional environmental consulting services including site assessment, remediation, and corrective action services for contaminated sites. Services are project-based and delivered by experienced licensed professionals with an average of 16 years of industry experience.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Geological Resources is a boutique environmental consulting firm providing assessment and corrective action services for contaminated sites, environmental due diligence for real estate transactions, construction engineering for remediation implementation, and 24-hour emergency spill response. The firm delivers project-based environmental consulting and remediation services to oil and gas distributors, convenience retail operators, and real estate clients across the U.S. Southeast and Northeast.

Product overview

Geological Resources is a boutique environmental consulting firm offering integrated environmental remediation and engineering services. The company provides three primary service lines: Assessment and Corrective Action Services for contaminated site remediation, Real Estate Transaction Services for environmental due diligence, and Construction Engineering Services for project implementation. Additionally, the company operates a 24 Hour Emergency Spill Response service for hazardous material incidents. These services work together to provide clients with a comprehensive approach to environmental compliance from initial assessment through regulatory closure.

Differentiator

Problem solved

Functional benefit

Products and services

• Assessment and Corrective Action Services

Quantifiable outcome

• 800+ successful site closures (No Further Actions achieved for clients)
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Scale indicators4 records

Expansion highlights4 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with substantial environmental services practice including site investigation, remediation, and regulatory compliance. Comparable services but offers them as part of a much broader portfolio.
• Arcadis: Global design and consultancy with a large environmental services practice covering site assessment, remediation, and due diligence. Overlaps with GRI's core services but operates at vastly larger scale and global footprint.
• Ramboll: International engineering and consulting firm with a significant environmental and site remediation practice. Comparable technical capabilities but materially larger scale and global reach than GRI.

Emerging players

• EHS Support: Growing environmental, health, and safety consulting firm providing site assessment, compliance, and remediation services. Comparable service offering to GRI but with broader national footprint and investor backing.

Direct peers

• SCS Engineers: Environmental engineering and consulting firm with strong petroleum and convenience-retail remediation practice. Directly comparable to GRI's oil & gas and convenience-store customer base and corrective action services.
• Terracon Consultants: Large US environmental and geotechnical consulting firm offering site assessment, remediation, and due diligence services across multiple regions. Directly comparable to GRI's three core service lines but at significantly greater geographic and employee scale.
• Haley & Aldrich: Environmental and geotechnical engineering consultancy serving oil & gas, real estate, and industrial clients with site investigation, remediation design, and compliance services. Highly comparable in service mix and customer profile, though materially larger.
• Geosyntec Consultants: Specialty environmental and geotechnical consulting firm focused on site characterization, remediation, and water resources. Closely comparable in technical service depth and project-based delivery model.
• Antea Group: Environmental, health, safety, and sustainability consulting firm offering site assessment, due diligence, and remediation services. Comparable in mid-size firm positioning and multi-region US presence.

Regional players

• Pinchin Group: North American environmental, building science, and geotechnical consulting firm with comparable site assessment and remediation services. Comparable boutique-style positioning but with primary focus on Canadian markets rather than US Southeast/Northeast.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/geologicalresourcesinc

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Geological Resources