Company lists · Data refreshed September 2026

Top 25 Climate and environmental consulting firms based in New York, United States

Name: Climate and environmental consulting firms based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 114 companies tracked

RevenueBase identified 114 company matches for climate and environmental consulting firms associated with New York, United States as of September 2026 and tracks 13,334 professional contacts across them, including 7,559 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for climate and 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 21, 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 21, 2026 How this list was built

114Companies

13,334Contacts tracked

7,559Verified emails

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The 25 largest climate and environmental consulting firms based in New York, United States

Ranked by team size

Top 25 of 114 company matches for climate and environmental consulting firms based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	WSP In The U.S	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	10001+	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 21, 2026 · View company records in RevenueBase
2	Hazen And Sawyer	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1,001-5,000	2,100 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 21, 2026 · View company records in RevenueBase
3	Agritecture	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	n/a	627 contacts →
	Exact match “Agritecture is a global advisory firm specializing in climate-smart agriculture and controlled environment agriculture (CEA).” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	AKRF	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	394 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 21, 2026 · View company records in RevenueBase
5	Onepointfive Opf.Degree	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	133 contacts →
	Exact match “At OnePointFive we solve your sustainability focused business challenges by empowering your organization with expert-led solutions, embedded training, and cutting edge tools to…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Environ Energy	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	98 contacts →
	Exact match “Environ Energy is a leader in accelerating global sustainable energy transformation for more than 30 years.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	GRO Intelligence	Exact match	New York, United StatesHQ recorded Sep 21, 2026	51-200	67 contacts →
	Exact match “Gro Intelligence illuminates the interrelationships between our earth’s ecology and human economy to help you see the big picture and act on the small details.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Growlity, INC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	47 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	True Environmental	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	201-500	37 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 21, 2026 · View company records in RevenueBase
10	Boomi Environmental LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	21 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 21, 2026 · View company records in RevenueBase
11	Edesign Dynamics	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	20 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 21, 2026 · View company records in RevenueBase
12	Altanova	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	19 contacts →
	Exact match “Altanova is a sustainability firm with consulting and engineering capabilities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Climate Nexus	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	12 contacts →
	Exact match “Climate Nexus was a strategic communications group dedicated to highlighting the wide-ranging impacts of climate change and clean energy solutions in the United States.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	Ganey Science	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	11 contacts →
	Exact match “Ganey Science is a small business enterprise based in New York.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Ambient Group, INC	Exact match	New York, United StatesHQ recorded Sep 21, 2026	51-200	11 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Parameter Climate	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	10 contacts →
	Exact match “Parameter Climate is a unique advisory firm whose mission is to help the global economy manage the increasingly impactful risks of climate change by creating a scalable, efficient…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Maypole Environmental Inspections, LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	10 contacts →
	Exact match “Maypole is a licensed inspection company with over 20 years of industry experience in navigating building codes and environmental hazards.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Hydro Tech Environmental Engineering And Geology, DPC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	51-200	10 contacts →
	Exact match “HydroTech Environmental Engineering and Geology, DPC, is a specialized engineering and consultancy firm that offers comprehensive, integrated services across the Water…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	The Bassiouni Group	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	10 contacts →
	Exact match “The Bassiouni Group (TBG) is a global consulting firm.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Lawrence Env, LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	9 contacts →
	Exact match “Lawrence Env LLC provides environmental due diligence and risk management consulting services to a broad spectrum of real estate clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Vektor Consultants	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	9 contacts →
	Exact match “An environmental consulting and construction management company providing an all-encompassing package to carry your projects to the next level.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Weatherbell Analytics, LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	8 contacts →
	Exact match “WeatherBELL Analytics LLC is a meteorological consulting firm that assists weather sensitive businesses to better manage their weather risk.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	The Casa Group, INC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “Headquartered in New York City, The CASA Group, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Tenen Environmental	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	11-50	6 contacts →
	Exact match “Tenen Environmental provides effective and real world solutions for its clients in the areas of environmental engineering, geology and hydrogeology and regulatory compliance.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Enzo Advisors LLC	Exact match	New York, NY, United StatesHQ recorded Sep 21, 2026	1-10	6 contacts →
	Exact match “We are a boutique global sustainability and climate advisory practice with two main focuses: Driving companies to build best-in-class business models within an ESG construct…” Recorded in the RevenueBase company graph · Sep 21, 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 “climate and environmental consulting firms”. 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 114 climate and environmental consulting firms based in New York, United States

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Climate and environmental consulting firms based in New York, United States at a glance

As of Sep 21, 2026

56.7%Verified-email coverage

117.0Average contacts per company

1-10Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 114 companies.

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 “climate and 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 7,559 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 21, 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.

Climate and environmental consulting firms by metro in the United States

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

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

RevenueBase identified 114 company matches for climate and 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 climate and environmental consulting firms?

New York leads the United States with 114 company records, followed by Houston (102) and Washington (77).

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 7,559 professional contacts with verified work emails tracked across these 114 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 21, 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.