What Chambers Group does

Chambers Group, Inc. is a Costa Mesa, California-headquartered environmental consulting firm founded in 1978 by Mel Chambers and incorporated in 1979 during the initial implementation of the California Environmental Quality Act (CEQA). The firm operates as a 100% employee-owned S-Corporation under an Employee Stock Ownership Trust and holds DGS-certified Small Business Enterprise (SBE) status as well as a Disadvantaged Business Enterprise (DBE) outreach program. Three physical offices — in Costa Mesa, San Diego, and Glendale — support projects across Southern California, with a recent expansion into the Pacific Northwest.

The firm's offering spans seven core service lines: Environmental Planning (CEQA/NEPA documentation including EIR, IS, ND, MND, CATEX, EIS, EA, FONSI), Habitat Restoration (native plant community restoration and monitoring across riparian, desert scrub, and coastal sage scrub systems), Construction Monitoring (biological and cultural resources monitoring during project construction), Compliance Monitoring (cross-trained environmental compliance tracking with databases and online reporting), Biological Resources (USFWS- and CDFW-permitted species work, botanical surveys, wildlife biology), Cultural Resources (archaeological, paleontological, and historic architecture assessment under NHPA Sections 106/110, ARPA, and NAGPRA), and Marine Biology (coastal waters surveys, inter-tidal and SCUBA work, offshore sampling to 1,400 feet, wetland analysis). Delivery is labor-intensive, dependent on permitted biologists, Registered Professional Archaeologists, and cross-trained field monitors.

Commercially, Chambers Group generates revenue through project-based professional consulting fees billed to three primary customer segments: energy utilities and telecom providers (SDG&E, SCE, AT&T) requiring permitting and biological/cultural surveys for infrastructure projects; federal, state, and local government agencies (U.S. Army Corps of Engineers, County of Orange, City of Irvine) requiring environmental documentation; and private developers. Notable engagements include Sunrise Powerlink (117-mile, 500 kV transmission line with up to 70 field biologists deployed), AT&T's 240-mile Victorville-to-Las Vegas fiber upgrade, and emergency post-fire restoration at San Gabriel Reservoir. Pricing is quote-based per engagement, contracts are won via competitive bids and sole-source procurement, and there is no disclosed software product, digital channel, or self-serve offering.

Name

Chambers Group

Legal name

Chambers Group, Inc.

Website

https://chambersgroupinc.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

101–250 employees

Short description

Chambers Group is a Costa Mesa, California-based environmental consulting firm founded in 1978, providing CEQA/NEPA permitting, biological and cultural resource management, habitat restoration, and construction compliance services to energy utilities, telecom firms, and government agencies across the Western US.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (541620), Environmental Consulting Services (54162)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Environmental Compliance & Permitting (BPAHAJAA)

akta.pro secondary industry

Sustainability & ESG Consulting (BPAHACAK)

Keywords

• Environmental consulting services
• Biological resource surveys
• Habitat restoration services
• CEQA NEPA compliance
• Construction monitoring

Headquarters

HQ city

Costa Mesa

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, Technology or R&D, Infrastructure

Revenue model

1. Environmental Consulting Services: Project-based professional consulting fees for environmental compliance, permitting, biological/cultural resources surveys, habitat restoration, and construction monitoring. Revenue generated through competitive bids, sole-source contracts with government agencies, and project engagements with private sector clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Chambers Group provides environmental consulting services including CEQA/NEPA documentation and permitting, biological and cultural resource surveys, habitat restoration, construction compliance monitoring, and marine biology studies. The firm delivers these services to government agencies, utilities, telecom providers, and private developers for infrastructure and development projects across the Western United States. The company is a 100% employee-owned ESOP operating from offices in Southern California with recent expansion into the Pacific Northwest.

Product overview

Chambers Group is an environmental consulting firm offering a comprehensive suite of services rather than a unified software product. The company provides seven core service offerings: Environmental Planning (compliance documentation under CEQA/NEPA), Habitat Restoration (native vegetation restoration and monitoring), Construction Monitoring (biological and cultural monitoring during construction), Compliance Monitoring (environmental compliance tracking and reporting), Biological Resources (wildlife and botanical surveys), Cultural Resources (archaeological and paleontological management), and Marine Biology (marine environment assessments). These services work together to support clients through environmental review, permitting, restoration, and ongoing compliance monitoring across projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Environmental Planning Preparation of CEQA and NEPA documentation, regulatory permitting, and environmental clearance documents including EIR, IS, ND, MND, CATEX, EIS, EA, and FONSI for public and private clients.
• Biological Resources Biological surveys, USFWS and CDFW permitted species work, qualified botanist plant surveys, wildlife biology, and regulatory compliance support for public sector agencies.
• Cultural Resources Cultural resource management including archaeological site identification, paleontological remains evaluation, historic architecture assessment, and compliance with Sections 106 and 110 of NHPA, ARPA, and NAGPRA.
• Habitat Restoration Native plant community restoration including restoration monitoring, weed abatement plans, native plant collection, propagation, installation, and performance monitoring for Riparian, Desert Scrub, and Coastal Sage Scrub habitats.
• Construction Monitoring Biological and cultural resources monitoring during construction including field presence to document project effects, clearance surveys for construction right-of-way, archaeological monitoring, and paleontological support.
• Compliance Monitoring Environmental compliance and monitoring programs with tracking databases, online reporting systems, and cross-trained biological, archeological, paleontological, environmental, and air quality monitors.
• Marine Biology

Quantifiable outcome

• Delivered CEQA-compliant IS/MND within 2.5 weeks for County of Orange Civic Center demolition project
• +3 more outcomes

Named customers7 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 indicators3 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Stantec: Global engineering and environmental consulting firm providing permitting, biological surveys, cultural resources, and compliance monitoring alongside a broader infrastructure practice — broad incumbent competing on the same California/Western US projects.
• Tetra Tech: Global consulting and engineering firm with a major environmental services practice covering permitting, biological/cultural resources, and compliance monitoring — competes with Chambers Group on larger federal and utility contracts.
• ICF International: Large diversified professional services firm with a substantial environmental planning, permitting, and compliance practice serving utilities and government — broader and larger-scale competitor that can underbid on flagship infrastructure programs.
• AECOM: Global infrastructure consulting firm with extensive environmental planning, permitting, and biological/cultural resources capabilities — competes at the top end of the same California infrastructure programs Chambers Group serves.
• ERM (Environmental Resources Management): Global sustainability and environmental consulting firm with permitting, impact assessment, and biological resources practices — competes with Chambers Group on larger enterprise and infrastructure EHS engagements.

Direct peers

• Dudek: California-headquartered environmental and planning consulting firm with overlapping biological resources, cultural resources, CEQA/NEPA permitting, habitat restoration, and construction monitoring practices — a direct Southern California competitor to Chambers Group.
• ESA (Environmental Science Associates): West Coast environmental consulting firm offering biological surveys, cultural resources, CEQA/NEPA documentation, permitting, and habitat restoration — directly comparable multi-disciplinary service portfolio and similar Western US footprint.
• Ascent Environmental: Sacramento-based environmental consulting firm focused on CEQA/NEPA compliance, biological and cultural resources, permitting, and regulatory strategy for California infrastructure and development clients.
• SWCA Environmental Consultants: Multi-disciplinary environmental consulting firm providing biological resources, cultural resources, permitting, and construction compliance services across the Western US — directly overlapping service lines and geography with Chambers Group.
• Rincon Consultants: California-based environmental planning and biological resources consulting firm serving public agencies and private developers on CEQA/NEPA, permitting, and monitoring — a closely matched regional direct peer.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/chambersgroup

Compliance1 record

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 Chambers Group