ESI Environmental Solutions

What ESI Environmental Solutions does

ESI Environmental Solutions, Inc. is a privately held indoor environmental testing and inspection firm founded in 2002 and headquartered in Deale, Maryland. The company provides nine service lines delivered by a team of Certified Indoor Environmentalists: mold inspection and testing, fire and soot sampling, radon sampling, asbestos and lead sampling, ATP cleaning verification and COVID-19 surface sampling (with PCR analysis at CLIA-certified, CAP-accredited BSL-2 labs), VOC testing, water and bacteria testing (including Legionella), LEED Indoor Environmental Quality certification support, and legal support including expert testimony. Each engagement follows a structured protocol: visual inspection, calibrated instrument measurement, third-party laboratory analysis, professional interpretation, and (where applicable) post-remediation clearance testing with documented chain of custody.

The underlying technology stack is built on certified field instrumentation and independent laboratory partnerships rather than proprietary software or AI. ESI's differentiators are codified remediation protocols developed over thousands of inspections, third-party independence from remediation contractors, and a comprehensive reporting methodology that distinguishes claim-related from non-claim-related issues for insurance, real estate, and legal use cases. The company holds IICRC, EIA, and American Council for Accredited Certification credentials and operates a GSA Multiple Award Schedule contract (47QRAA22D008W, 2022-2027) that provides access to federal government procurement.

The business model is project-based professional services sold primarily through a sales-led, referral-driven motion. Customers are reached via direct phone and email outreach, an online consultation form, and complimentary industry seminars offering CAMICB continuing education credits to Property Managers, Realtors, and Remediation Contractors. Revenue is generated on a per-engagement, quote-based basis with no public pricing. Five named customer segments — Insurance Adjusters, Homeowners, Property Managers, Realtors, and Remediation Contractors — span the Mid-Atlantic region (Maryland, DC, Northern Virginia, and select counties in Delaware and Pennsylvania), with the federal government added as a channel through the GSA Advantage! marketplace. The company is founder-owned and -managed (Vinny Gigliotti, Owner and CEO; Joan Wilson, CFO) with 11-50 employees and no disclosed external funding.

Name

ESI Environmental Solutions

Legal name

Environmental Solutions, Inc.

Website

https://esi4u.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

ESI Environmental Solutions is a Mid-Atlantic indoor environmental testing and inspection firm that provides mold, asbestos, lead, radon, VOC, water/bacteria, and LEED IEQ testing services to homeowners, property managers, realtors, insurance adjusters, and remediation contractors, and holds a GSA contract for federal environmental services work.

Ownership category

akta.pro rank

Product category

Environmental Testing and Inspection Services

NAICS

Testing Laboratories and Services (54138), Building Inspection Services (541350), Environmental Consulting Services (541620)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Indoor Air Quality (IAQ) & Building Health Assessments (EUAHAGAG)

akta.pro secondary industries

Asbestos/Lead/Mold Inspection, Testing & Consulting (BPALALAD), Post-Abatement Clearance Testing & Documentation (BPALALAH), Environmental Compliance, Monitoring & Field Services (Sampling/IAQ/Inspections) (IMAIAGAF), Site Assessment & Remediation (Phase I/II, Cleanup Oversight) (BPAHAJAC)

Keywords

• Indoor air quality testing
• Mold inspection services
• Asbestos and lead sampling
• Radon and VOC testing
• Environmental testing services

Headquarters

HQ city

Deale

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Environmental Inspection and Testing Services: ESI generates revenue through fee-for-service environmental inspection and testing engagements. Services include mold inspections, asbestos/lead sampling, radon sampling, fire and soot analysis, VOC testing, water and bacteria testing, ATP cleaning verification, COVID-19 surface sampling, and LEED IAQ testing. Revenue is project-based and one-time per engagement, with post-remediation clearance testing creating follow-on revenue opportunities.
2. GSA Federal Government Contract: ESI operates under GSA Multiple Award Schedule (MAS) Contract Number 47QRAA22D008W (Contract Period: 2022 to 2027), providing environmental services to federal government buyers. Classified as a Small Business, enabling access to set-aside contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

ESI Environmental Solutions provides onsite indoor environmental inspection and testing services delivered by Certified Indoor Environmentalists. Services span mold inspection, asbestos and lead sampling, radon testing, fire and soot analysis, VOC testing, water and bacteria testing (including Legionella), ATP cleaning verification, COVID-19 surface sampling, LEED IEQ certification support, and legal/expert testimony. Engagements are project-based and delivered primarily across Maryland, DC, Northern Virginia, and select counties in Delaware and Pennsylvania, with federal government work available through a GSA Multiple Award Schedule contract.

Product overview

ESI Environmental Solutions is an inspection and testing services company providing environmental testing services to Maryland, DC, and Northern Virginia since 2002. The company operates as a unified service offering rather than a software platform, delivering environmental inspection and testing through nine distinct service lines: Mold Inspections and Testing (core service including visual inspection, air/surface sampling, lab analysis, and post-remediation clearance), Fire and Soot Sampling, Radon Sampling, Asbestos and Lead Sampling, ATP & COVID-19 (cleaning verification and COVID-19 PCR testing), VOC Testing, Water & Bacteria testing, LEED certification support services, and Legal Support (expert testimony and case consulting). Services are delivered by Certified Indoor Environmentalists to various clientele including homeowners, realtors, property managers, insurance adjusters, and remediation contractors.

Differentiator

Problem solved

Functional benefit

Products and services

• Mold Inspections and Testing Professional mold inspection and testing services including visual inspection with moisture readings, air and surface sampling, laboratory analysis, remediation recommendations, and post-remediation clearance testing, conducted by Certified Indoor Environmentalists for homeowners, property managers, and remediation contractors.
• Fire and Soot Sampling Fire and smoke damage investigation services testing for chemical and particulate residues including asbestos fibers, formaldehyde, and fire-related VOCs, with laboratory analysis, field data collection, and chain of custody documentation for insurance adjusters and property owners.
• Radon Sampling Short-term radon gas sampling services to detect colorless, odorless radon levels in properties, with mitigation recommendations when levels exceed the 4 pCi/L threshold for homeowners and real estate transactions.
• Asbestos and Lead Sampling Asbestos and lead paint sampling services including bulk samples, air samples, wipe samples, and abatement protocol reports, with lead paint chip sampling for pre-1980 homes to support property managers, homeowners, and remediation contractors.
• ATP & COVID-19 Surface Testing ATP cleaning verification using calibrated device measurements to confirm professional cleaning effectiveness on high-touch surfaces, plus COVID-19 surface sample collection sent to a CLIA certified, CAP accredited BSL-2 laboratory for PCR analysis to support property managers and commercial clients.
• VOC Testing Indoor environment testing for Volatile Organic Compounds (VOCs) to determine if elevated levels are present, with recommendations for resolution of identified issues for property owners and managers.
• Water and Bacteria Testing Water and bacteria testing services including potable water testing, Legionella sampling, bacteria swab testing, and bacteria air sampling for property managers, building owners, and homeowners.
• LEED Indoor Environmental Quality Services LEED Indoor Environmental Quality (IEQ) testing and certification support services to help commercial clients achieve LEED IEQ 3.2, V4, and V4.1 certifications, provided by Council-Certified Indoor Environmentalists.
• Legal Support and Expert Testimony Legal support services including discovery of claim-related versus non-claim-related issues, case review and consulting, and expert testimony for environmental litigation matters.

Segments5 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• EMSL Analytical: National environmental testing laboratory offering mold, asbestos, lead, radon, VOC, and bacteria testing services. Directly comparable because ESI sends samples to certified labs while EMSL provides the analytical backbone that the same customer base (homeowners, insurers, PMs) relies on.
• EMLab P&K: Network of IAQ and environmental testing laboratories serving IAQ consultants, property managers, and real estate professionals with mold, asbestos, and bacteria analysis. Comparable to ESI's lab-dependent sampling model for the same end customers.
• Aerobiology Laboratory Associates: Specialty IAQ microbiology lab serving the indoor air quality, mold, and Legionella testing market. Overlaps with ESI's Water & Bacteria, mold, and IAQ service lines for a similar clientele.
• RTK Environmental Group: Regional and national environmental testing firm offering mold, asbestos, lead, radon, and VOC inspections for real estate, property management, and insurance clients. Closest head-to-head peer to ESI's field-inspection-plus-lab model.
• Clark Seif Clark: Environmental and industrial hygiene consulting firm providing IAQ, mold, asbestos, and Legionella testing for property managers, attorneys, and commercial clients. Comparable in services and client mix.
• Prism Analytical Technologies: IAQ and emissions testing laboratory focused on mold, VOCs, and building health assessments for commercial and residential clients. Comparable to ESI's VOC and LEED IAQ testing offerings.

Emerging players

• Indoor Sciences: Building science and IAQ consulting firm offering mold inspections, air sampling, and post-remediation verification for residential and commercial clients. Comparable niche to ESI's mid-Atlantic field inspection practice.
• AssuredBio: Microbial and IAQ testing laboratory focused on mold, bacteria, and Legionella analysis. Similar testing scope to ESI's Water & Bacteria and mold service lines for overlapping customer profiles.

Broad incumbents

• Eurofins Environment Testing US: Large-scale environmental testing network covering air, water, soil, asbestos, and IAQ across the US. Comparable capability set to ESI but at national scale with broader portfolio of environmental services.
• Bureau Veritas North America: Global testing, inspection, and certification firm with US environmental and IAQ service lines serving property managers, developers, and government clients. Comparable to ESI's inspection-plus-advisory model but at enterprise scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/esi4u
• LinkedInlinkedin.com/company/environmental-solutions-inc-

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 ESI Environmental Solutions