Company lists · Data refreshed October 2026
Top 25 Environmental expert witness services worldwide
RevenueBase identified 718 company matches for environmental expert witness services worldwide as of October 2026 and tracks 6,735 professional contacts across them, including 2,213 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.
This list covers company matches for environmental expert witness services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 25, 2026. Country and city lists for environmental expert witness services follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest environmental expert witness services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 272 contacts → | ||||
Exact match “GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 2 | 189 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 3 | 186 contacts → | ||||
Exact match “Robson Forensic is a national leader in expert witness consulting, providing technical expertise across many fields within engineering, architecture, and science, as well as an…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 4 | 182 contacts → | ||||
Exact match “PGL Environmental Consultants consistently provides clients with a high level of support and confidence in our environmental management and planning decisions by combining…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 5 | 166 contacts → | ||||
Exact match “IEc is an environmental consulting firm with four decades of experience providing consulting services to a diverse client base.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 6 | 143 contacts → | ||||
Exact match “CPEA - Consultoria Paulista de Estudos Ambientais is a limited liability company, founded on October 15th, with headquarter in the city of São Paulo.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 7 | 130 contacts → | ||||
Exact match “Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 8 | 110 contacts → | ||||
Exact match “Hart & Hickman PC provides environmental consulting services to commercial, industrial, and governmental clients throughout the Southeast US.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 9 | 107 contacts → | ||||
Exact match “We are a forensic engineering, consulting and environmental sciences company serving clients across Canada.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 10 | 105 contacts → | ||||
Exact match “CK Associates is an environmental consulting firm that is fully owned by its employees.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 11 | 105 contacts → | ||||
Exact match “Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 12 | 95 contacts → | ||||
Exact match “Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 13 | 91 contacts → | ||||
Exact match “Water and Air Research, Inc.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 14 | 82 contacts → | ||||
Exact match “De STAB is een onpartijdige deskundige die de bestuursrechter op verzoek adviseert over geschillen op het gebied van het fysieke leefmilieu.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 15 | 71 contacts → | ||||
Exact match “ASILORZA S.A.C “Consultoría y Proyectos Ambientales”, es una empresa de profesionales orientada a la realización de estudios científicos y prestación de asesorías en medio…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 16 | 67 contacts → | ||||
Exact match “We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 17 | 62 contacts → | ||||
Exact match “PM Environmental is an environmental risk expert focused on business-minded solutions.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 18 | 60 contacts → | ||||
Exact match “THE ENVIRONMENTAL COMPANY LEW Environmental Services is proud to be part of the Mainline Environmental family of companies, alongside our sister organizations HSE Consulting and…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 19 | 58 contacts → | ||||
Exact match “ECO-MED est un bureau d'études, d'expertise et de conseil en environnement naturel spécifiques à l’aménagement du territoire et à la mise en valeur des milieux naturels.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 20 | 53 contacts → | ||||
Exact match “Floyd|Snider is a multi-disciplinary environmental consulting firm providing engineering, strategic project management, and scientific expertise to achieve balanced solutions to…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 21 | 53 contacts → | ||||
Exact match “Lorsque vient le temps d’obtenir l’heure juste en matière d’analyses environnementales, les organisations des secteurs privés et publics peuvent compter sur H2Lab.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 22 | 52 contacts → | ||||
Exact match “Somos uma consultoria especializada na resolução de conflitos ambientais.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 23 | 44 contacts → | ||||
Exact match “Fundada em 1º de setembro de 1983, a DBO ENGENHARIA desenvolve, desde então, projetos na área ambiental, prestando serviços de qualidade para indústrias, mineradoras, usinas de…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 24 | 43 contacts → | ||||
Exact match “A BIODINÂMICA ENGENHARIA E MEIO AMBIENTE LTDA.” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
| 25 | 41 contacts → | ||||
Exact match “Farmer Environmental Group is a national full service environmental consulting firm providing a wide range of services to industries, municipalities, insurance, real estate…” Recorded in the RevenueBase company graph · Oct 25, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “environmental expert witness services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 718 environmental expert witness services worldwide
See the full list, filter by size, metro and specialty, and access 2,213 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Environmental expert witness services worldwide at a glance
As of Oct 25, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for environmental expert witness services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “environmental expert witness services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 2,213 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on October 25, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Environmental expert witness services by location
3 lists · largest firstEvery Environmental expert witness services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “environmental expert witness services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many environmental expert witness services are there worldwide?
RevenueBase identified 718 company matches for environmental expert witness services worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
GSI Environmental INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most environmental expert witness services?
The United States leads with 228 companies, followed by Brazil (90) and Canada (29). Every environmental expert witness services list by country and city is linked on this page.
Which city has the most environmental expert witness services?
Sao Paulo leads with 14 company records, followed by Houston (9) and Curitiba (6).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,213 professional contacts with verified work emails tracked across these 718 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 25, 2026.
Ready to reach these companies? Verified emails and direct dials for all 718 environmental expert witness services worldwide. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 environmental expert witness services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 718 matching company records for environmental expert witness services worldwide, with 6,735 tracked contacts and 2,213 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 25, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 environmental expert witness services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  GSI Environmental INCgsienv.comHQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 272 contacts → |
“GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Normandeau Associates, INCnormandeau.comHQ: Bedford, NH, United StatesReported employees: 201-500 | Bedford, NH, United States | 201-500 | Exact match | 189 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 3 | Robson Forensic, INCrobsonforensic.com HQ: Lancaster, PA, United StatesReported employees: 51-200 | Lancaster, PA, United States | 51-200 | Exact match | 186 contacts → |
“Robson Forensic is a national leader in expert witness consulting, providing technical expertise across many fields within engineering, architecture, and science, as well as an…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  PGL Environmental Consultantspggroup.comHQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 182 contacts → |
“PGL Environmental Consultants consistently provides clients with a high level of support and confidence in our environmental management and planning decisions by combining…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Industrial Economics, Incorporated IECindecon.com HQ: Cambridge, MA, United StatesReported employees: 51-200 | Cambridge, MA, United States | 51-200 | Exact match | 166 contacts → |
“IEc is an environmental consulting firm with four decades of experience providing consulting services to a diverse client base.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  CPEAcpeanet.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 143 contacts → |
“CPEA - Consultoria Paulista de Estudos Ambientais is a limited liability company, founded on October 15th, with headquarter in the city of São Paulo.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Setec Énergie Environnementsetec.frHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 130 contacts → |
“Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Hart & Hickman, PCharthickman.comHQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 110 contacts → |
“Hart & Hickman PC provides environmental consulting services to commercial, industrial, and governmental clients throughout the Southeast US.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Concord, ON, United StatesReported employees: 51-200 | Concord, ON, United States | 51-200 | Exact match | 107 contacts → |
“We are a forensic engineering, consulting and environmental sciences company serving clients across Canada.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 105 contacts → |
“CK Associates is an environmental consulting firm that is fully owned by its employees.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Chambers Group, INCchambersgroupinc.comHQ: Costa Mesa, CA, United StatesReported employees: 51-200 | Costa Mesa, CA, United States | 51-200 | Exact match | 105 contacts → |
“Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Aspen Environmental Groupaspeneg.com HQ: Agoura Hills, CA, United StatesReported employees: 51-200 | Agoura Hills, CA, United States | 51-200 | Exact match | 95 contacts → |
“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Water & AIR Research, INCwaterandair.com HQ: Gainesville, FL, United StatesReported employees: 11-50 | Gainesville, FL, United States | 11-50 | Exact match | 91 contacts → |
“Water and Air Research, Inc.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | STABstab.nl HQ: The Hague, NetherlandsReported employees: 11-50 | The Hague, Netherlands | 11-50 | Exact match | 82 contacts → |
“De STAB is een onpartijdige deskundige die de bestuursrechter op verzoek adviseert over geschillen op het gebied van het fysieke leefmilieu.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Asilorza S.A.Casilorza.comHQ: Magdalena Del Mar, PeruReported employees: 51-200 | Magdalena Del Mar, Peru | 51-200 | Exact match | 71 contacts → |
“ASILORZA S.A.C “Consultoría y Proyectos Ambientales”, es una empresa de profesionales orientada a la realización de estudios científicos y prestación de asesorías en medio…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ERO Resources Corporationeroresources.comHQ: Lakewood, CO, United StatesReported employees: 11-50 | Lakewood, CO, United States | 11-50 | Exact match | 67 contacts → |
“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PM Environmentalpmenv.com HQ: Lansing, MI, United StatesReported employees: 51-200 | Lansing, MI, United States | 51-200 | Exact match | 62 contacts → |
“PM Environmental is an environmental risk expert focused on business-minded solutions.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  LEW Environmentallewenvironmental.comHQ: Mine Hill, NJ, United StatesReported employees: 51-200 | Mine Hill, NJ, United States | 51-200 | Exact match | 60 contacts → |
“THE ENVIRONMENTAL COMPANY LEW Environmental Services is proud to be part of the Mainline Environmental family of companies, alongside our sister organizations HSE Consulting and…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Eco-Med By Eoddecomed.frHQ: Marseille, FranceReported employees: 11-50 | Marseille, France | 11-50 | Exact match | 58 contacts → |
“ECO-MED est un bureau d'études, d'expertise et de conseil en environnement naturel spécifiques à l’aménagement du territoire et à la mise en valeur des milieux naturels.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Floyd Sniderfloydsnider.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 53 contacts → |
“Floyd|Snider is a multi-disciplinary environmental consulting firm providing engineering, strategic project management, and scientific expertise to achieve balanced solutions to…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  H2labh2lab.caHQ: Sainte-agathe-des-monts, QC, CanadaReported employees: 51-200 | Sainte-agathe-des-monts, QC, Canada | 51-200 | Exact match | 53 contacts → |
“Lorsque vient le temps d’obtenir l’heure juste en matière d’analyses environnementales, les organisations des secteurs privés et publics peuvent compter sur H2Lab.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Newfields Brasilnewfields.com.brHQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 52 contacts → |
“Somos uma consultoria especializada na resolução de conflitos ambientais.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  DBO Engenhariadboengenharia.com.brHQ: Goiânia, BrazilReported employees: 11-50 | Goiânia, Brazil | 11-50 | Exact match | 44 contacts → |
“Fundada em 1º de setembro de 1983, a DBO ENGENHARIA desenvolve, desde então, projetos na área ambiental, prestando serviços de qualidade para indústrias, mineradoras, usinas de…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Biodinamica Engenharia E Meio Ambiente Ltdabiodinamica.bio.brHQ: Rio De Janeiro, BrazilReported employees: 51-200 | Rio De Janeiro, Brazil | 51-200 | Exact match | 43 contacts → |
“A BIODINÂMICA ENGENHARIA E MEIO AMBIENTE LTDA.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Farmer Environmental Group, LLCfarmereg.comHQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 41 contacts → |
“Farmer Environmental Group is a national full service environmental consulting firm providing a wide range of services to industries, municipalities, insurance, real estate…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 718 company matches
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Environmental expert witness services: dataset insights
October 25, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
717 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 718 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 25, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Environmental expert witness services by location
3 lists · largest firstEvery Environmental expert witness services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for environmental expert witness services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many environmental expert witness services did RevenueBase find worldwide?
The saved snapshot records 718 matching company records, 6,735 tracked contacts and 2,213 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 25, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 environmental expert witness services worldwide. Snapshot: October 25, 2026. https://revenuebase.ai/companies/browse/environmental-expert-witness-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 environmental expert witness services worldwide
RevenueBase records 718 matching company records for environmental expert witness services worldwide, with 6,735 tracked contacts and 2,213 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 25, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 environmental expert witness services worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | GSI Environmental INCgsienv.com HQ: Houston, TX, United StatesReported employees: 201-500 | Houston, TX, United States | 201-500 | Exact match | 272 contacts → |
“GSI Environmental, Inc.(GSI), is an environmental engineering and science consulting firm committed to measuring, analyzing, and solving complex environmental problems around the…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Normandeau Associates, INCnormandeau.com HQ: Bedford, NH, United StatesReported employees: 201-500 | Bedford, NH, United States | 201-500 | Exact match | 189 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 3 | Robson Forensic, INCrobsonforensic.com HQ: Lancaster, PA, United StatesReported employees: 51-200 | Lancaster, PA, United States | 51-200 | Exact match | 186 contacts → |
“Robson Forensic is a national leader in expert witness consulting, providing technical expertise across many fields within engineering, architecture, and science, as well as an…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | PGL Environmental Consultantspggroup.com HQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 182 contacts → |
“PGL Environmental Consultants consistently provides clients with a high level of support and confidence in our environmental management and planning decisions by combining…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Industrial Economics, Incorporated IECindecon.com HQ: Cambridge, MA, United StatesReported employees: 51-200 | Cambridge, MA, United States | 51-200 | Exact match | 166 contacts → |
“IEc is an environmental consulting firm with four decades of experience providing consulting services to a diverse client base.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | CPEAcpeanet.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 143 contacts → |
“CPEA - Consultoria Paulista de Estudos Ambientais is a limited liability company, founded on October 15th, with headquarter in the city of São Paulo.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Setec Énergie Environnementsetec.fr HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 130 contacts → |
“Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Hart & Hickman, PCharthickman.com HQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 110 contacts → |
“Hart & Hickman PC provides environmental consulting services to commercial, industrial, and governmental clients throughout the Southeast US.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Concord, ON, United StatesReported employees: 51-200 | Concord, ON, United States | 51-200 | Exact match | 107 contacts → |
“We are a forensic engineering, consulting and environmental sciences company serving clients across Canada.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | HQ: Baton Rouge, LA, United StatesReported employees: 51-200 | Baton Rouge, LA, United States | 51-200 | Exact match | 105 contacts → |
“CK Associates is an environmental consulting firm that is fully owned by its employees.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Chambers Group, INCchambersgroupinc.com HQ: Costa Mesa, CA, United StatesReported employees: 51-200 | Costa Mesa, CA, United States | 51-200 | Exact match | 105 contacts → |
“Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Aspen Environmental Groupaspeneg.com HQ: Agoura Hills, CA, United StatesReported employees: 51-200 | Agoura Hills, CA, United States | 51-200 | Exact match | 95 contacts → |
“Aspen Environmental Group is an expert interdisciplinary environmental impact analysis firm, specializing in the management of environmental assessment efforts under CEQA, NEPA…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Water & AIR Research, INCwaterandair.com HQ: Gainesville, FL, United StatesReported employees: 11-50 | Gainesville, FL, United States | 11-50 | Exact match | 91 contacts → |
“Water and Air Research, Inc.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | STABstab.nl HQ: The Hague, NetherlandsReported employees: 11-50 | The Hague, Netherlands | 11-50 | Exact match | 82 contacts → |
“De STAB is een onpartijdige deskundige die de bestuursrechter op verzoek adviseert over geschillen op het gebied van het fysieke leefmilieu.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Asilorza S.A.Casilorza.com HQ: Magdalena Del Mar, PeruReported employees: 51-200 | Magdalena Del Mar, Peru | 51-200 | Exact match | 71 contacts → |
“ASILORZA S.A.C “Consultoría y Proyectos Ambientales”, es una empresa de profesionales orientada a la realización de estudios científicos y prestación de asesorías en medio…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ERO Resources Corporationeroresources.com HQ: Lakewood, CO, United StatesReported employees: 11-50 | Lakewood, CO, United States | 11-50 | Exact match | 67 contacts → |
“We are a team of consultants who specialize in natural resource and environmental assessment, planning, and permitting.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PM Environmentalpmenv.com HQ: Lansing, MI, United StatesReported employees: 51-200 | Lansing, MI, United States | 51-200 | Exact match | 62 contacts → |
“PM Environmental is an environmental risk expert focused on business-minded solutions.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | LEW Environmentallewenvironmental.com HQ: Mine Hill, NJ, United StatesReported employees: 51-200 | Mine Hill, NJ, United States | 51-200 | Exact match | 60 contacts → |
“THE ENVIRONMENTAL COMPANY LEW Environmental Services is proud to be part of the Mainline Environmental family of companies, alongside our sister organizations HSE Consulting and…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Eco-Med By Eoddecomed.fr HQ: Marseille, FranceReported employees: 11-50 | Marseille, France | 11-50 | Exact match | 58 contacts → |
“ECO-MED est un bureau d'études, d'expertise et de conseil en environnement naturel spécifiques à l’aménagement du territoire et à la mise en valeur des milieux naturels.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Floyd Sniderfloydsnider.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 53 contacts → |
“Floyd|Snider is a multi-disciplinary environmental consulting firm providing engineering, strategic project management, and scientific expertise to achieve balanced solutions to…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | H2labh2lab.ca HQ: Sainte-agathe-des-monts, QC, CanadaReported employees: 51-200 | Sainte-agathe-des-monts, QC, Canada | 51-200 | Exact match | 53 contacts → |
“Lorsque vient le temps d’obtenir l’heure juste en matière d’analyses environnementales, les organisations des secteurs privés et publics peuvent compter sur H2Lab.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Newfields Brasilnewfields.com.br HQ: São Paulo, BrazilReported employees: 51-200 | São Paulo, Brazil | 51-200 | Exact match | 52 contacts → |
“Somos uma consultoria especializada na resolução de conflitos ambientais.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | DBO Engenhariadboengenharia.com.br HQ: Goiânia, BrazilReported employees: 11-50 | Goiânia, Brazil | 11-50 | Exact match | 44 contacts → |
“Fundada em 1º de setembro de 1983, a DBO ENGENHARIA desenvolve, desde então, projetos na área ambiental, prestando serviços de qualidade para indústrias, mineradoras, usinas de…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Biodinamica Engenharia E Meio Ambiente Ltdabiodinamica.bio.br HQ: Rio De Janeiro, BrazilReported employees: 51-200 | Rio De Janeiro, Brazil | 51-200 | Exact match | 43 contacts → |
“A BIODINÂMICA ENGENHARIA E MEIO AMBIENTE LTDA.” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Farmer Environmental Group, LLCfarmereg.com HQ: Richardson, TX, United StatesReported employees: 11-50 | Richardson, TX, United States | 11-50 | Exact match | 41 contacts → |
“Farmer Environmental Group is a national full service environmental consulting firm providing a wide range of services to industries, municipalities, insurance, real estate…” Recorded description excerpt · October 25, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Environmental expert witness services: dataset insights
October 25, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
717 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 718 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 25, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Environmental expert witness services by location
3 lists · largest firstEvery Environmental expert witness services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for environmental expert witness services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many environmental expert witness services did RevenueBase find worldwide?
The saved snapshot records 718 matching company records, 6,735 tracked contacts and 2,213 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 25, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 environmental expert witness services worldwide. Snapshot: October 25, 2026. https://revenuebase.ai/companies/browse/environmental-expert-witness-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗