What A3 Environmental Consultants does

A3 Environmental Consultants (A3 Environmental, LLC) is a woman-owned environmental consulting firm founded in 2015 by Professional Geologist Alisa Allen and headquartered in Lisle, Illinois. The firm delivers a full suite of environmental due diligence (Phase I/II ESAs, Transaction Screen Assessments, Preliminary Site Investigations, Environmental Screens, Record Search Risk Assessments), environmental remediation (UST removal/closure, CCDD management, soil management, Site Remediation Program, Baseline Environmental Assessments), ecological services (wetland delineation, jurisdictional determinations, threatened and endangered species surveys, ecological permitting), and complementary services such as CADD/GIS, NEPA reviews, brownfield assessments, asbestos surveys, and watershed plan development. A3E carries $5 million in professional liability insurance and produces ASTM E1527-21 compliant reports. Its service methodology is built on professional database research (ERIS, EDR), field sampling, CADD/GIS, and EPA-approved watershed planning approaches, with seven EPA-approved Section 319 watershed plans authored in Northern Illinois.

The firm's customer base is horizontally segmented across commercial banks, M&A and private equity buyers, law firms, civil engineering companies (including Arcadis and Stantec as primes), utilities, real estate brokerages (CBRE), government entities (MWRD, Forest Preserves of Cook County, municipalities), transportation (a major U.S. airline for nationwide airport facility assessments), and non-profits. A3E operates as both prime contractor and subcontractor, with project pricing ranging from $150 desktop screens to $100,000+ remediation engagements, structured as one-time/perp licenses on a pay-as-you-go basis. Geographic reach spans all 50 states for Phase I ESAs, with concentrated presence in Northern Illinois and Chicagoland.

Revenue is project-based professional services revenue with no disclosed funding, no parent company, and no venture or private equity backing. The firm has grown from a freelance operation to approximately 20 employees over roughly 7–10 years, supplemented by the integration of Olson Ecological Solutions (OES) in 2019 to add ecological and watershed planning capabilities. Go-to-market relies on direct sales engagement via phone/email/portal, content marketing through a 147+ post Knowledge Base and 58 project profiles, social channels (LinkedIn, YouTube, Facebook, Twitter), and memberships in industry associations (ACEC, IAAP, AIPG, AEG, A&WMA, APWA). WBENC certification supports supplier diversity-driven access to bank, government, and enterprise clients.

Name

A3 Environmental Consultants

Legal name

A3 Environmental, LLC

Website

https://a3e.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

A3 Environmental Consultants is a woman-owned environmental consulting firm in Lisle, Illinois, providing Phase I/II ESAs, remediation, wetland delineation, and ecological services to banks, M&A buyers, engineering firms, government agencies, and real estate developers across all 50 states.

Ownership category

akta.pro rank

Product category

Environmental Consulting Services

NAICS

Environmental Consulting Services (54162), Environmental Consulting Services (541620), Engineering Services (541330), Architectural, Engineering, and Related Services (5413), Waste Management and Remediation Services (562)

SIC

Services-Engineering Services (8711), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Site Assessment & Remediation (Phase I/II, Cleanup Oversight) (BPAHAJAC)

akta.pro secondary industry

Environmental Compliance & Permitting (BPAHAJAA)

Keywords

• Environmental site assessments
• Environmental remediation services
• Wetland delineation consulting
• Ecological restoration services
• Phase I ESA consulting

Headquarters

HQ city

Lisle

HQ country

United States

HQ region

North America

Offices1 record

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: Professional consulting fees for environmental due diligence, site assessments, remediation design, ecological services, and regulatory compliance work. Services range from $150 Environmental Screens to $100,000+ remediation projects. Revenue is project-based with varying scope and complexity determining final fees.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

A3 Environmental Consultants provides environmental due diligence, remediation, and ecological consulting services to banks, M&A firms, lawyers, civil engineers, utilities, and government agencies. Core offerings include Phase 1/2 Environmental Site Assessments (ESAs), Transaction Screen Assessments, Remediation services (UST removal, soil management, Site Remediation Programs), and ecological services (wetland delineation, threatened and endangered species surveys, watershed planning). The firm works as both prime contractor and subcontractor and delivers services across all 50 U.S. states from its Lisle, Illinois headquarters.

Product overview

A3 Environmental Consultants is a full-service environmental consulting firm offering a unified portfolio of interconnected services rather than a modular software platform. The core offering consists of Environmental Due Diligence services (Phase 1 ESA, Phase 2 ESA, Transaction Screen Assessment, PESA, PSI, Environmental Screen, RSRA, Defensive Environmental Review, Soil Gas Investigation) which evaluate properties for contamination risk during real estate transactions. Environmental Remediation services (UST Removal & Closure, CCDD Services, Soil Management, BEA, SRP) address identified contamination through tank removal, soil management, and site remediation. Ecological Services (Wetland Screen, Wetland Delineation, Jurisdictional Wetland Determination, Threatened & Endangered Species Survey, Ecological Permitting) support habitat and environmental compliance. Support Services include CADD & GIS, Watershed Plan Development, NEPA Reviews, Brownfield Assessments, Asbestos Surveys, and Groundwater Sampling. The company also maintains a Knowledge Base as an educational resource. Services can be purchased individually or delivered as turnkey solutions, and the company works as both prime contractor and subcontractor on larger projects.

Differentiator

Problem solved

Functional benefit

Products and services

• Phase 1 Environmental Site Assessment (ESA) Comprehensive evaluation of commercial property to identify potential or existing environmental contamination, conducted under ASTM E1527-21 standards and the EPA's All Appropriate Inquiries Rule, meeting CERCLA innocent landowner defense requirements. Priced $2,200-$4,000 with 2-3 week turnaround. Used by banks, M&A firms, and lawyers for CRE transactions.
• Phase 2 Environmental Site Assessment (ESA) Subsurface investigation involving soil and groundwater sampling to confirm whether contamination exists and assess its extent following a Phase 1 ESA identification of Recognized Environmental Conditions. Used to characterize contamination extent for lenders, M&A parties, and property owners.
• Transaction Screen Assessment (TSA) Transactional due diligence assessment designed to evaluate environmental risk during mergers and acquisitions, enabling faster deal closings for buyers and sellers. Used by M&A advisors and corporate buyers.
• Preliminary Environmental Site Assessment (PESA) Initial environmental evaluation to identify potential contamination risks, functioning as a corridor- and facility-scale equivalent of a Phase 1 ESA. Used for infrastructure and right-of-way projects.
• Preliminary Site Investigation (PSI)

Quantifiable outcome

• Thornton Quarry groundwater monitoring - 2020 and 2021 contract winner
• +3 more outcomes

Named customers18 records

Segments7 records

Ideal customer profiles8 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Region 1 Planning Council (R1)coreStrategic or Co-development Partner · 1 January 2025In 2025, A3E partnered with Region 1 Planning Council to develop a comprehensive Water Quality Report - Our Water's Health in the Rockford Region - for the Rockford Metropolitan Area spanning parts of Boone, Ogle, and Winnebago counties.
• Professional Environmental Engineers, Inc.minorStrategic or Co-development Partner · 1 August 2024A3E completed a wetland delineation for Professional Environmental Engineers, Inc. at a 23-acre site along Lincoln Avenue in Lisle, DuPage County, Illinois in August 2024.
• Essential Utilities / Aqua AmericaminorStrategic or Co-development Partner · 1 January 2021A3E OES (joint venture between A3 Environmental Consultants and another entity) performed wetland delineation and permitting services for Essential Utilities/Aqua America for water services infrastructure.
• Natural Land Institute (NLI)coreStrategic or Co-development Partner · 1 January 2019Natural Land Institute initiated the Winneshiek Creek Watershed Plan process in 2019 by partnering with Olson Ecological Solutions (OES) - now part of A3 Environmental Consultants - and Tallgrass Restoration to create a comprehensive watershed inventory.
• Tallgrass RestorationcoreStrategic or Co-development Partner · 1 January 2019Partnership with Tallgrass Restoration (TGR) to develop comprehensive watershed inventory for Winneshiek Creek watershed plan. OES/Olson Ecological Solutions - now part of A3E - led the watershed planning effort.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Ramboll: Global engineering, consulting, and environmental services firm with a major U.S. environment and health practice. Competes for the same bank, M&A, and government environmental mandates that A3E serves.
• Tetra Tech: Global environmental engineering and consulting leader with deep water resources, watershed planning, and remediation practices. Competes with A3E on EPA Section 319 watershed plans and large remediation projects but at vastly greater scale and with international reach.
• GHD: Global engineering, architecture, and environmental consulting firm with strong U.S. water, environment, and property practice. Overlaps with A3E on watershed planning, environmental due diligence, and remediation.
• Arcadis: Global design, engineering, and environmental consulting firm. Listed as an A3E partner on smaller regional work but also competes for the same Phase I/II ESA and remediation mandates from banks, M&A, and government clients.
• Stantec: Global engineering, architecture, and environmental consulting firm. Direct overlap with A3E on environmental site assessments, brownfield, and ecological services, and listed as a subcontracting/partner relationship in the data.
• Environmental Resources Management (ERM): World's largest pure-play environmental, health, safety, and sustainability consultancy. Competes for the same M&A environmental due diligence, remediation, and EHS consulting mandates, and routinely partners with or displaces smaller regional firms on enterprise accounts.

Direct peers

• Haley & Aldrich: U.S. environmental and geotechnical engineering consultancy focused on site assessment, remediation, and risk management for CRE, M&A, and infrastructure clients. Closely aligned with A3E's Phase I/II and brownfield service lines and end markets.
• Terracon Consultants: Large U.S. environmental, geotechnical, and facilities consulting firm offering Phase I/II ESAs, remediation, ecological, and materials testing. Most direct head-to-head competitor with similar service mix and similar SBA/ASTM-compliant due diligence product structure, though at much greater scale.
• SCS Engineers: National environmental engineering firm specializing in solid waste, UST closure, brownfield, and remediation — the same core services A3E provides. Comparable service depth in UST/LUST work and CCDD-adjacent offerings, with overlapping public-sector client base.

Emerging players

• Trinity Consultants: U.S. environmental, EHS, and regulatory compliance consulting firm with overlapping due diligence, permitting, and compliance work. Comparable mid-market footprint and similar buyer base of banks, developers, and industrial clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/A3Environmental
• YouTubeyoutube.com/channel/UCe4ABGt7aCt989rLMz6H0UA
• Facebookfacebook.com/A3-Environmental-Consultants-105105504439222
• LinkedInlinkedin.com/company/a3-environmental-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries1 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 A3 Environmental Consultants