ERO Resources
ERO Resources Corporation is a 45-year-old Denver-based environmental consulting firm providing natural resource assessment, NEPA compliance, cultural resource management, and permitting services to government agencies, water utilities, and private developers across the Intermountain West.
- Company typePrivate
- Founded1981
- HeadquartersDenver, United States
- Headcount11–50
- GTM typeB2B
- OfferingServices
What ERO Resources does
ERO Resources Corporation is a privately held environmental consulting firm founded in 1981 in Denver, Colorado, providing natural resource assessment, environmental planning, regulatory compliance, and permitting services across Colorado and the Intermountain West. The firm delivers six core service lines—Ecological Restoration, Biological Resources, Cultural Resources, NEPA Compliance, Environmental Due Diligence & Remediation, and Environmental Planning—through a multidisciplinary team of nearly 100 professionals including a 25-person cultural resource group, biologists, wetland scientists, archaeologists, GIS specialists, and NEPA planners.
The firm serves federal, state, and local government agencies, water utilities, transportation departments, mining operators, energy developers, and private developers, generating revenue primarily through project-based professional services contracts. Federal access is enabled by a GSA Multiple Award Schedule contract (47QRAA21D0075) covering environmental consulting, remediation, and GIS services, plus multiple IDIQ contracts with FHWA, NPS, USFS, and CDOT. Long-tenured on-call relationships with major Colorado water utilities (Denver Water, Aurora Water, Colorado Springs Utilities, City of Thornton) and county governments anchor the revenue base. Technical capabilities include GIS/LIDAR-based remote sensing, functional assessment methodologies, groundwater and contaminant transport modeling, and predictive modeling for cultural resource surveys.
The firm operates from offices in Lakewood (headquarters), Grand Junction, Durango, and Boise, with project work spanning twelve U.S. states. ERO transitioned to employee ownership in October 2025 under President Moneka Worah (elected June 2024), positioning the firm for continuity rather than external exit.
ERO Resources firmographics
Firmographics- Name
- ERO Resources
- Legal name
- ERO Resources Corporation
- Website
- https://eroresources.com
- Company type
- Private
- Founded year
- 1981
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- ERO Resources Corporation is a 45-year-old Denver-based environmental consulting firm providing natural resource assessment, NEPA compliance, cultural resource management, and permitting services to government agencies, water utilities, and private developers across the Intermountain West.
- Ownership category
- akta.pro rank
Where ERO Resources is headquartered
LocationHeadquarters
- HQ city
- Denver
- HQ country
- United States
- HQ region
- North America
Offices4 records
Markets served
ERO Resources 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 billed on a project fee basis. Services include ecological restoration, biological resources, cultural resources, NEPA compliance, environmental due diligence, and environmental planning. Work is delivered by multidisciplinary project managers and staff scientists either individually or as coordinated teams.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | GSA Contract Services |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
ERO Resources product offering
Product offeringCore offering
ERO Resources is an environmental consulting firm delivering natural resource assessment, planning, and permitting services across six core service areas: Ecological Restoration, Biological Resources, Cultural Resources, NEPA Compliance, Environmental Due Diligence & Remediation, and Environmental Planning. The firm supports federal, state, and local government agencies, utilities, and private developers with regulatory compliance, environmental documentation, and field-based scientific investigations primarily in Colorado and the Intermountain West.
Product overview
ERO Resources is an environmental consulting firm offering a comprehensive suite of services delivered through six core service areas: Ecological Restoration, Biological Resources, Cultural Resources, NEPA Compliance, Environmental Due Diligence & Remediation, and Environmental Planning. Their services are available to federal, state, and local government clients, as well as private sector clients, through direct contracting and a GSA Multiple Award Schedule (MAS) contract. The company specializes in supporting clients with natural resource and environmental assessment, planning, and permitting across markets including transportation, water, utilities, infrastructure, development, energy, and mining activities in Colorado and the Intermountain West.
Differentiator
Problem solved
Functional benefit
Products and services
- Ecological Restoration Services Ecological restoration services including wetland mitigation and restoration, construction observation, revegetation and restoration, noxious weed management, mitigation banks, and monitoring throughout Colorado. Delivered to government agencies and private clients.
- Biological Resources Services Natural resource services including wetland delineations, Clean Water Act compliance, biological assessments, habitat conservation plans, threatened and endangered species surveys, and Endangered Species Act compliance. For federal, state, and private sector clients.
- Cultural Resources Services Cultural resource management services for Section 106 of the National Historic Preservation Act compliance, including archaeological surveys, architectural surveys, historic property treatment, Native American consultation, predictive modeling, and HABS/HAER documentation.
- NEPA Compliance Services National Environmental Policy Act compliance services including environmental impact statements, environmental assessments, categorical exclusions, public involvement, and interdisciplinary team facilitation for transportation, water, energy, and infrastructure projects.
- Environmental Due Diligence & Remediation Services Environmental site assessments including Phase I and II ESAs, site characterization and remediation, groundwater modeling, voluntary cleanup plans, and petroleum storage tank closure services for developers, brokers, and legal firms.
- Environmental Planning Services Natural resource management planning, regional conservation planning, trail and recreation planning, management policy development, baseline inventory and assessment, and public process facilitation.
- GSA Environmental Services Contract GSA Multiple Award Schedule contract (47QRAA21D0075) providing environmental consulting services (SIN 541620), remediation services (SIN 562910REM), and GIS services (SIN 541370) to federal agencies under pre-negotiated rates; contract valid through June 22, 2026.
Companies that use ERO Resources
Customer profileNamed customers27 records
Segments6 records
Ideal customer profiles6 records
ERO Resources technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
ERO Resources partnerships and signals
Strategic signalPartnerships
Seven partnerships are on record, tiered minor.
- Project Mosaic LLCminorERO developed an eight-chapter American Indian/Indigenous Peoples Historic Context Study alongside Project Mosaic LLC on behalf of City and County of Denver Landmark Preservation. The project is part of Denver's historic context series initiative covering underrepresented communities.
- Trout UnlimitedminorERO and Trout Unlimited are working with Pike National Forest and Denver Water on the Cheesman Canyon Trail Assessment and Strategy project. The project addresses recreation access impacts on the gold medal fishery along the South Platte River.
- Colorado West Land TrustminorColorado West Land Trust partnered with ERO on the Monument Connector Trail project in Grand Junction, partially funded by Great Outdoors Colorado (GOCO). ERO conducted environmental compliance including rare plant surveys, cultural resource surveys, and Section 404 permitting.
- Tapis AssociatesminorERO partnered with Tapis Associates for the Cheesman Canyon Trail Assessment and Strategy project with Pike National Forest, Denver Water, and Trout Unlimited.
- MWH Americas (Stantec)minorERO prepared the Arkansas Valley Conduit EIS under subcontract with MWH Americas (now Stantec) for the Bureau of Reclamation. MWH served as prime contractor with ERO handling cultural and natural resource assessments.
- South Metro Water Supply AuthorityminorERO assists South Metro Water Supply Authority and member agencies (Parker Water, Denver Water, Aurora Water) with Clean Water Act permitting for the WISE Partnership regional water supply project.
- Colorado State Historical FundminorFunding partner for Lightning Valley Archaeology Field School project - a cooperative project between Fishers' Peak State Park, ERO Resources Corporation, and Tribal partners.
Scale indicators10 records
Recent moves8 records
Expansion highlights5 records
ERO Resources competitors and assessment
Company assessmentDirect peers
- SWCA Environmental Consultants: Employee-owned environmental consulting firm of comparable size and scope, providing NEPA, cultural resources, biological resources, and environmental planning services to federal, state, and private clients across the western U.S. Direct overlap in service lines, client segments (BLM, USFS, FHWA), and regional markets makes SWCA the closest comparable to ERO.
- Kleinfelder: Mid-sized environmental and engineering consulting firm with strong practice areas in environmental site assessments, NEPA compliance, cultural resources, and water resources. Comparable mid-market position with similar federal/state client mix and overlapping service categories to ERO.
- Brown and Caldwell: Environmental engineering and consulting firm focused on water and environmental compliance for municipal and federal clients. Overlap with ERO on water supply, Clean Water Act Section 404 permitting, and municipal infrastructure projects makes it a close peer despite a larger engineering footprint.
- Montrose Environmental Group: Environmental services and consulting firm providing environmental site assessments, remediation, regulatory compliance, and air quality services. Overlap with ERO on Phase I/II ESAs, due diligence, and remediation work, though Montrose has a broader air quality and emissions focus.
- Anchor QEA: Environmental and water resources consulting firm providing habitat restoration, sediment management, NEPA, and permitting services. Comparable size and direct overlap on water supply, river restoration, and aquatic resource permitting projects, particularly in the western U.S.
Broad incumbents
- Tetra Tech: Large global consulting and engineering firm with substantial environmental consulting, NEPA, water resources, and remediation practices serving federal agencies. Competes with ERO on larger federal awards but operates at materially greater scale and broader geographic footprint.
- ICF International: Major management and technology consulting firm with a large environmental and NEPA practice serving federal agencies (EPA, DOE, FHWA). Direct overlap on NEPA documentation and environmental planning engagements, though broader portfolio includes energy, health, and digital services.
- Stantec: Global engineering, architecture, and environmental consulting firm with significant water, environmental services, and cultural resources practices. Direct competitive overlap on Bureau of Reclamation and large municipal water projects where ERO has previously subcontracted to MWH Americas (now Stantec).
- AECOM: One of the largest global environmental and infrastructure consulting firms, with major practices in NEPA, environmental planning, water, and transportation. Competes with ERO on large federal infrastructure and water supply projects and frequently primes contracts where ERO would otherwise compete.
- ERM (Environmental Resources Management): Global environmental, health, safety, and sustainability consulting firm with deep practice in environmental impact assessments, permitting, and natural resource management. Competes with ERO on large mining, energy, and infrastructure EIS engagements, particularly for enterprise clients.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
ERO Resources social profiles
Digital presenceERO Resources compliance and trust
Trust signalCompliance2 records
ERO Resources financial estimates
Financial estimateRevenue estimate
Valuation estimate
ERO Resources leadership team
Management profileNumber of profiles
Profiles10 records
ERO Resources funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
ERO Resources 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 ERO Resources
What does ERO Resources do?
ERO Resources is an environmental consulting firm delivering natural resource assessment, planning, and permitting services across six core service areas: Ecological Restoration, Biological Resources, Cultural Resources, NEPA Compliance, Environmental Due Diligence & Remediation, and Environmental Planning. The firm supports federal, state, and local government agencies, utilities, and private developers with regulatory compliance, environmental documentation, and field-based scientific investigations primarily in Colorado and the Intermountain West.
Is ERO Resources a public or private company?
ERO Resources is a private company. It is classified as management employee owned and is currently operating.
When was ERO Resources founded?
ERO Resources was founded in 1981. It employs 11 to 50 people.
Where is ERO Resources based?
ERO Resources is headquartered in Denver, United States, in the North America region.
How does ERO Resources make money?
One revenue line is on record: environmental Consulting Services.
Who are ERO Resources's main competitors?
Direct peers on record are SWCA Environmental Consultants, Kleinfelder, Brown and Caldwell, Montrose Environmental Group and Anchor QEA. Broad incumbents are Tetra Tech, ICF International, Stantec, AECOM and ERM (Environmental Resources Management).
Does ERO Resources have an API?
No public API is recorded for ERO Resources.