A3 Environmental Consultants (A3E)

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About A3 Environmental Consultants (A3E)

A3 Environmental Consultants (A3E) is a woman-owned small business environmental consulting firm headquartered at 3030 Warrenville Rd, Suite 418, Lisle, IL 60532, serving the Midwest commercial real estate, banking, M&A, and legal communities. The firm is led by Alisa Allen, M.S., P.G. (Principal) with David McCoy, P.G. as Director of Operations.

The firm’s positioning is unusual in two respects:

• Woman-owned small-business status — meaningful for institutional buyers with diversity-spend procurement requirements, public-agency clients, and supplier-diversity reporting
• M&A-focused due diligence practice — A3E publicly positions itself around supporting M&A transactions (“complete your transactional due diligence so you can close more deals, faster”) rather than pure CRE acquisitions

A3E’s published Google reviews are unusually strong: 4.9/5 from 40 reviews, which is the highest review-volume-to-rating combination among Midwest regional environmental consultants on apprais.ai’s directory.

Services Offered

A3E’s four service lines:

Environmental Due Diligence

• Phase I ESA (ASTM E1527-21 / AAI-compliant)
• Phase II ESA — soil, groundwater, soil-vapor sampling
• Transaction Screens — lower-scope alternative for low-risk sites
• M&A-specific environmental risk evaluation for acquirers

Investigation & Remedial Services

• Site investigation and characterization
• Remediation design and oversight
• LUST (Leaking Underground Storage Tank) program work
• Site closure documentation

Ecological Services

• Wetland delineations
• Endangered species assessments
• NEPA-related ecological surveys
• Led by Rebecca Olson, M.S. (Lead Ecologist)

Petroleum Storage Tank Services

• Underground Storage Tank (UST) investigations
• Tank closure and removal oversight
• Compliance reporting

Notable Project Work

A3E publicly highlights select projects that illustrate the firm’s capability profile:

• Pullman Train Car Brownfield (Hammond, IN) — A3E performed environmental risk evaluation for a California financier acquiring an oil-blending facility on the historic Pullman Train Car manufacturing site. This is the type of complex industrial brownfield where junior consultants make costly mistakes.
• Metropolitan Water Reclamation District of Greater Chicago — A3E supports MWRD stormwater and water-quality work, including Thornton Quarry well sampling. Public-utility work is an unusual signal for a small firm.

Service Area

A3E is headquartered in Lisle, Illinois (DuPage County, Greater Chicago) and serves the Midwest region — Illinois, Indiana, Iowa, Michigan, Wisconsin, Missouri, and Ohio are typical work geographies. For Chicago-metro transactions specifically, A3E has the local IEPA, BOCA, and county-level regulatory familiarity that out-of-region firms typically lack.

Why Small + Senior Matters

A3E’s headcount of approximately 15 staff sits in an interesting middle ground for the Phase 1 ESA market — large enough to support cross-state work and back-office continuity, small enough that clients work directly with a P.G. (Professional Geologist) on every engagement rather than being routed to a junior associate. For complex sites where the Phase 1 ESA findings will likely escalate into Phase 2 sampling or remediation, the continuity of working with the same senior staff from screening through closure is a meaningful operational benefit.

The 40-review Google rating (4.9/5) is among the highest review-volume-to-rating combinations on apprais.ai’s directory, suggesting consistent client satisfaction at this scale.

Best For

• Chicago-metro CRE transactions — Lisle (DuPage County) HQ + Chicago-area regulatory depth
• Midwest M&A due diligence — explicit M&A practice focus, banking + legal client base
• Brownfield and former-industrial site acquisitions — Pullman project demonstrates capability
• Diversity-spend / supplier-diversity procurement — woman-owned small business status
• Petroleum storage tank-impacted properties — dedicated PST practice
• Wetland / ecological-sensitive site work — in-house ecology lead
• Buyers who value direct access to a P.G. on every project — small enough that senior staff is engaged
• Properties likely to escalate from Phase 1 to Phase 2 — same senior staff carries through

Request a Quote

Contact A3 Environmental Consultants (A3E) directly:

• Phone: (888) 405-1742
• Email: Info@A3E.com
• Visit: a3e.com
• Headquarters: 3030 Warrenville Rd, Suite 418, Lisle, IL 60532

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Related Pages

• Phase 1 ESA Cost Guide
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