Company lists · Data refreshed September 2026

Top 24 Environmental consulting firms based in New York, United States

RevenueBase identified 121 company matches for environmental consulting firms associated with New York, United States as of September 2026 and tracks 14,327 professional contacts across them, including 8,343 with verified work emails and 6,518 with mobile numbers. Across the United States, Houston is the largest hub for this category (133 companies); New York follows with 117.

This list covers company matches for environmental consulting firms associated with New York, United States, 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 September 12, 2026.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 12, 2026 How this list was built
121Companies
14,327Contacts tracked
8,343Verified emails
6,518Mobile numbers
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The 24 largest environmental consulting firms based in New York, United States

Ranked by team size
Top 24 of 121 company matches for environmental consulting firms based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 12, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202610001+9,318 contacts →

Exact match

“What if you could shape built and natural environments – and the future of those that use them?”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 12, 20261,001-5,0002,100 contacts →

Exact match

“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 12, 20261,001-5,000492 contacts →

Exact match

“Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 12, 2026501-1,000448 contacts →

Exact match

“CSA Group is a full-service, A/E/Env, PM/CM & Inspections, and Emergency Management consulting firm.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 12, 2026201-500394 contacts →

Exact match

“Founded in 1981, AKRF employs 400 planners, engineers, scientists, economists, landscape designers, geologists, historians, archaeologists, acousticians, and many related…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 12, 2026501-1,000259 contacts →

Exact match

“From humble beginnings in 1991 as a 2-person company in New York City, we have now grown into a 500-person strong consulting firm, with 15 regional offices in the US (and India).”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202651-200120 contacts →

Exact match

“KC is a diversified, multi-disciplined consulting engineering firm.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202651-20082 contacts →

Exact match

“ALC provides a wide range of environmental services from testing and reporting on potentially unsafe or hazardous conditions (asbestos, lead paint, indoor air quality/mold, soil…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202651-20057 contacts →

Exact match

“Redocs, a well-known and respected compliance company in the New York City Commercial Property industry.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5047 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 12, 2026n/a43 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5042 contacts →

Exact match

“For over sixty years, Sive, Paget & Riesel (SPR) has been a recognized leader in environmental law and litigation, municipal and land use law.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5039 contacts →

Exact match

“BFJ Planning is a consulting firm providing professional expertise in planning and related fields since its establishment in 1980.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 12, 2026201-50037 contacts →

Exact match

“True Environmental (“True”) is building a diversified environmental services organization focused on consulting and engineering, water/wastewater management, testing/analytical…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5034 contacts →

Exact match

“GEA Consulting Engineers is one of New York’s top engineering firms, specializing in the innovative design of mechanical, electrical, plumbing, fire protection, commissioning…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5032 contacts →

Exact match

“Hargreaves Jones (previously Hargreaves Associates) is a professional consulting firm comprised of landscape architects and planners with offices in New York, San Francisco, and…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5032 contacts →

Exact match

“ads ENGINEERS, DPC, established in 1979 continues to provide high-quality engineering services to our long-standing clients based on the principals established by the founding…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5026 contacts →

Exact match

“Backed by 30+ years of experience, Great Forest is a leader in sustainable waste management consulting.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202651-20025 contacts →

Exact match

“A.G.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5022 contacts →

Exact match

“AMAA is a multi-disciplinary firm focused on consulting engineering headquartered in Manhattan, servicing the Eastern United States.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5021 contacts →

Exact match

“Boomi Environmental LLC (Boomi) is a premier environmental consulting firm specializing in providing practical, sustainable, and cost-effective solutions to water, wastewater, and…”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5020 contacts →

Exact match

“eDESIGN DYNAMICS is an environmental engineering and planning firm committed to solving water and ecological resources challenges in the developed and developing worlds.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 12, 202611-5019 contacts →

Exact match

“Altanova is a sustainability firm with consulting and engineering capabilities.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Sep 12, 20261-1019 contacts →

Exact match

“At Crescit: Executive Search, we are passionate about connecting skilled engineering professionals with top firms in the US.”

Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase

Showing 24 of 121 environmental consulting firms based in New York, United States

See the full list, filter by size, metro and specialty, and access 8,343 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Environmental consulting firms based in New York, United States at a glance

As of Sep 12, 2026
58.2%Verified-email coverage
45.5%Mobile-number coverage
118.4Average contacts per company
11-50Median size (employees)
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
45
51-200
10
201-500
5
501-1,000
2
1,001-5,000
2
5,001-10,000
1
10001+
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

Company record updated

Median 57.0d

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.
What qualifies
Company records associated with New York, United States whose business descriptions match “environmental consulting firms” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 8,343 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 September 12, 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.

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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many environmental consulting firms are there based in New York, United States?

RevenueBase identified 121 company matches for environmental consulting firms associated with New York, United States as of September 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?

WSP In The U.S tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most environmental consulting firms?

Houston leads the United States with 133 company records, followed by New York (117) and Seattle (80).

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 8,343 professional contacts with verified work emails tracked across these 121 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 September 12, 2026.

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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.