Environmental Alliance

What Environmental Alliance does

Environmental Alliance, operating under the Onterris brand (rebranded from Montrose Environmental Group in 2025), is a global environmental solutions firm providing consulting, testing, remediation, and emergency-response services to industrial and government clients. The company operates across the United States, Canada, and Australia, and serves ten primary industry sectors including Chemical, Energy, Government, Infrastructure, Manufacturing, Mining & Minerals, Solid Waste, Technology & Digital Infrastructure, and Transportation. Its core technology stack is a services platform rather than a software product: nine solution lines — Contaminated Land & Remediation, Permitting & Compliance, Planning/Preparedness/Response & Recovery, Health/Safety & Chemistry, Testing & Analysis, Water Consulting/Testing & Treatment, Community Resiliency, Natural Resources, and Treatment Technologies — are delivered through integrated teams of scientists, engineers, field technicians, and consultants applying a systems-thinking approach.

The firm monetizes entirely through professional services. Revenue streams span environmental consulting, testing and analysis (including EPA-compliant stack testing and fugitive-emissions leak detection), remediation, and emergency response, all delivered under customized, quote-based engagement terms; pricing is not publicly disclosed. Its go-to-market is enterprise-focused direct sales, supported by dedicated client portals, request-a-quote workflows for laboratory services, and a multi-channel thought-leadership presence (Outlook Report, topical content hubs, LinkedIn, YouTube, and a Workday-hosted careers portal). The 2025 rebrand to Onterris consolidates prior legacy service lines under a unified identity, and the company continues to position around regulatory-compliance expertise across multiple jurisdictions, with no disclosed AI/ML products, APIs, or proprietary technology platforms in the current record.

Note: the firmographic block identifies this entity as a Wilmington-based firm founded in 1991 with 11–50 employees, which is materially inconsistent with the multi-country, ten-sector, investor-relations-enabled footprint described in the Onterris content; the substantive analysis is based on the Onterris record.

Name

Environmental Alliance

Legal name

Onterris, Inc.

Website

https://envalliance.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Short description

Environmental Alliance (now Onterris, formerly Montrose Environmental Group) is a global environmental consulting, testing, remediation, and emergency-response firm serving industrial and government clients across the U.S., Canada, and Australia.

Ownership category

akta.pro rank

Product category

Environmental Consulting & Engineering Services

NAICS

Environmental Consulting Services (54162), Testing Laboratories and Services (54138), Remediation Services (562910)

SIC

Services-Engineering Services (8711), Services-Testing Laboratories (8734)

akta.pro primary industry

Environmental Compliance & Permitting (BPAHAJAA)

akta.pro secondary industries

Site Assessment & Remediation (Phase I/II, Cleanup Oversight) (BPAHAJAC), Air Quality & Emissions Management (BPAHAJAI)

Keywords

• Environmental consulting services
• Site remediation solutions
• Emissions and stack testing
• Environmental permitting and compliance
• Water and wastewater treatment

Headquarters

HQ city

Wilmington

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Consulting Services: Professional consulting services providing regulatory compliance support, permitting, environmental assessment and strategic advisory for organizations across diverse sectors and regulatory environments.
2. Testing and Analysis Services: Laboratory analysis and field testing services including stack testing, source emissions testing, leak detection and fugitive emissions management. Delivered through advanced laboratory facilities and field operations.
3. Environmental Remediation Services: Contaminated land remediation, water treatment technologies and natural resources management services delivered through specialized field teams and technical expertise.
4. Emergency Response Services: Planning, preparedness, response and recovery services for environmental emergencies and incidents, with readiness capabilities for decisive environmental action.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels8 records

Core offering

Environmental Alliance provides integrated environmental consulting, testing and analysis, remediation, and emergency response services to industrial, energy, government, infrastructure, manufacturing, mining, solid waste, technology, and transportation clients. Its core offerings span contaminated land remediation, permitting and compliance, health, safety and chemistry, stack testing, source emissions testing and leak detection, water consulting and treatment, community resiliency, natural resources, and treatment technologies, delivered through scientists, engineers, field teams, and consultants applying a systems-thinking methodology.

Product overview

Onterris (formerly Montrose Environmental Group) is a global environmental solutions company offering a unified platform of integrated environmental services. The company provides nine core solution areas: Contaminated Land & Remediation, Permitting & Compliance, Planning/Preparedness/Response & Recovery, Health/Safety & Chemistry, Testing & Analysis, Water Consulting/Testing & Treatment, Community Resiliency, Natural Resources, and Treatment Technologies. These solutions are delivered across ten industry sectors including Chemical, Energy, Government, Infrastructure, Manufacturing, Mining & Minerals, Solid Waste, Technology & Digital Infrastructure, and Transportation. The company carries forward its legacy offerings in air quality, emissions testing, environmental consulting and analytical services under the unified Onterris brand following its 2025 rebrand.

Differentiator

Problem solved

Functional benefit

Products and services

• Contaminated Land & Remediation Environmental remediation services for contaminated land, addressing soil and groundwater contamination through scientific assessment and targeted cleanup solutions. Aimed at enterprise clients with contaminated sites in chemical, energy, manufacturing, mining, and similar industrial sectors.
• Permitting & Compliance Regulatory permitting and compliance services helping organizations navigate environmental regulations and maintain operational permits across multiple jurisdictions. Aimed at industrial, energy, and government clients needing permit support.
• Planning, Preparedness, Response & Recovery Emergency response and business continuity planning services, including environmental incident response and recovery operations. Aimed at government, industrial, and infrastructure clients needing readiness for decisive environmental action.
• Health, Safety & Chemistry Health, safety, and chemistry consulting services supporting workplace safety and chemical management compliance. Aimed at chemical, manufacturing, and industrial clients with workplace safety obligations.
• Testing & Analysis Laboratory testing and analytical services including stack testing, source emissions testing, and leak detection for industrial facilities. Aimed at industrial clients needing EPA-compliant testing.
• Water Consulting, Testing & Treatment Water quality consulting, testing, and treatment solutions addressing water resource management and contamination challenges. Aimed at industrial, mining, government, and infrastructure clients managing water risk.
• Community Resiliency Community-focused environmental resiliency planning and implementation services. Aimed at municipalities, government agencies, and infrastructure clients addressing community-level environmental risk.
• Natural Resources Natural resource management and assessment services supporting sustainable utilization and protection of natural assets. Aimed at government, mining, infrastructure, and other sector clients managing natural-resource-related environmental obligations.
• Treatment Technologies Advanced environmental treatment technologies for addressing complex contamination and pollution challenges. Aimed at industrial, remediation, and waste-management clients needing specialized treatment solutions.
• Air Quality Services Air quality monitoring and management services for industrial and commercial facilities, previously delivered under the prior brand and carried forward under the unified Environmental Alliance offering.
• Emissions Testing Emissions testing services including stack testing and source emissions testing for EPA compliance, previously carried under the prior brand and continuing under the unified Environmental Alliance offering.
• Environmental Consulting Expert environmental consulting services addressing regulatory compliance, risk assessment, and environmental management. Aimed at enterprise clients across chemical, energy, manufacturing, mining, and government sectors.
• Analytical Services Laboratory analytical services supporting environmental testing and compliance monitoring for enterprise clients.

Segments9 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

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• AECOM: Global infrastructure and environmental services firm with a large EHS practice serving chemical, energy, manufacturing, and government — competes for enterprise environmental consulting and remediation work.
• Tetra Tech: Large global environmental, water, and engineering consulting firm offering consulting, design, and remediation across the same industrial verticals — a broader incumbent that competes for the same RFPs.
• WSP Global: Global engineering and environmental consultancy with significant EHS, remediation, and air quality capabilities serving industrial and government clients — direct overlap on the enterprise side of the market.
• Jacobs Solutions: Large global professional services firm with a major environmental and sustainability practice — competes for large multi-site EHS and remediation programs across industrial sectors.

Direct peers

• SCS Engineers: Environmental engineering and consulting firm specializing in solid waste, remediation, air quality, and EHS compliance — directly comparable service lines and similar industrial/government client base.
• Terracon Consultants: National environmental, geotechnical, and facilities consulting firm with a similar multi-discipline environmental services offering serving industrial, commercial, and government clients.
• Civil & Environmental Consultants (CEC): Mid-sized, multi-office environmental and engineering consulting firm offering environmental site assessment, remediation, air quality, and compliance services to industrial clients — closely matching Environmental Alliance's service mix and target customer profile.
• Haley & Aldrich: Environmental and geotechnical consulting firm providing site assessment, remediation, and compliance services to industrial and real estate clients — directly comparable consulting-and-engineering business model.
• Brown and Caldwell: Environmental engineering and consulting firm focused on water, environmental compliance, and remediation for industrial and municipal clients — overlapping capability set and client verticals.

Regional players

• GHD: Australia-headquartered global engineering and environmental consulting firm with strong presence across environmental compliance, water, and remediation — comparable in scope and service lines, though primarily operating in different geographies.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights5 records

Customer concentration

• Xtwitter.com/onterris
• YouTubeyoutube.com/@onterris
• LinkedInlinkedin.com/company/onterris
• Facebookfacebook.com/envalliance

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Environmental Alliance