Environmental Alliance
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.
- Company typePrivate
- Founded1991
- HeadquartersWilmington, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
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.
Environmental Alliance firmographics
Firmographics- 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
Environmental Alliance industry classification
Industry- 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
Where Environmental Alliance is headquartered
LocationHeadquarters
- HQ city
- Wilmington
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Environmental Alliance business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Environmental Consulting Services: Professional consulting services providing regulatory compliance support, permitting, environmental assessment and strategic advisory for organizations across diverse sectors and regulatory environments.
- 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.
- Environmental Remediation Services: Contaminated land remediation, water treatment technologies and natural resources management services delivered through specialized field teams and technical expertise.
- 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
Environmental Alliance product offering
Product offeringCore 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.
Companies that use Environmental Alliance
Customer profileSegments9 records
Ideal customer profiles4 records
Environmental Alliance technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Environmental Alliance partnerships and signals
Strategic signalScale indicators1 record
Recent moves5 records
Expansion highlights5 records
Environmental Alliance competitors and assessment
Company assessmentBroad 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
Environmental Alliance social profiles
Digital presenceEnvironmental Alliance financial estimates
Financial estimateRevenue estimate
Valuation estimate
Environmental Alliance leadership team
Management profileNumber of profiles
Profiles2 records
Environmental Alliance funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Environmental Alliance M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Environmental Alliance
What does Environmental Alliance do?
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.
Is Environmental Alliance a public or private company?
Environmental Alliance is a private company. It is classified as unknown and is currently operating.
When was Environmental Alliance founded?
Environmental Alliance was founded in 1991. It employs 11 to 50 people.
Where is Environmental Alliance based?
Environmental Alliance is headquartered in Wilmington, United States, in the North America region.
How does Environmental Alliance make money?
Four revenue lines are on record. Environmental Consulting Services are the primary driver. The others are testing and Analysis Services, environmental Remediation Services and emergency Response Services.
Who are Environmental Alliance's main competitors?
Broad incumbents on record are AECOM, Tetra Tech, WSP Global and Jacobs Solutions. Direct peers are SCS Engineers, Terracon Consultants, Civil & Environmental Consultants (CEC), Haley & Aldrich and Brown and Caldwell. GHD is listed as a regional player.
Does Environmental Alliance have an API?
No public API is recorded for Environmental Alliance.
What industry is Environmental Alliance in?
Environmental Alliance's product category is Environmental Consulting & Engineering Services. Its primary akta.pro industry code is BPAHAJAA, Environmental Compliance & Permitting, with a secondary code of BPAHAJAC, Site Assessment & Remediation (Phase I/II, Cleanup Oversight). Its NAICS code is 54162 and its SIC code is 8711.