Company lists · Data refreshed September 2026

Top 25 Climate consultancies based in New York, United States

RevenueBase identified 251 company matches for climate consultancies associated with New York, United States as of September 2026 and tracks 6,276 professional contacts across them, including 3,140 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for climate consultancies 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
251Companies
6,276Contacts tracked
3,140Verified emails
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The 25 largest climate consultancies based in New York, United States

Ranked by team size
Top 25 of 251 company matches for climate consultancies 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026501-1,000765 contacts →

Exact match

“The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026n/a627 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
4Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026501-1,000431 contacts →

Exact match

“Sodali & Co advises corporate clients worldwide as they navigate the complex dynamic of shareholder and stakeholder interests.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 21, 2026201-500198 contacts →

Exact match

“Bold steps forward.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-200191 contacts →

Exact match

“Research Nester is a global consulting firm that works with the most aspirational facilitators to define the future market strategies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchNew York, United StatesHQ recorded Sep 21, 202651-200172 contacts →

Exact match

“Carbon Direct is a trusted energy and climate solutions company that combines world-class scientific expertise, technical rigor, and market insights to help clients achieve their…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-50133 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
9Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-20098 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
10Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-20085 contacts →

Exact match

“Euclid Power is comprised of a team of industry-leading veterans within renewable energy project development, diligence, finance, and execution with over 10GW of PV and 5GWh of…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-20081 contacts →

Exact match

“First Street™ is the standard for climate risk financial modeling.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchNew York, United StatesHQ recorded Sep 21, 202651-20067 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
13Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-20062 contacts →

Exact match

“Welcome to Cognitud, where purpose-driven consulting meets global impact.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-20057 contacts →

Exact match

“Proudly founded in 2019, we are an independent construction consultancy service which brings a combined 25 years' worth of experience across all sectors in the construction…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5049 contacts →

Exact match

“Founded in 2011, Energy Infrastructure Partners (EIP) began with a clear premise: utilities, governments, and large energy users need a partner who is as committed to technical…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5047 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5043 contacts →

Exact match

“Potential Energy Coalition is a Fast Company Most Innovative Nonprofit!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202651-20040 contacts →

Exact match

“ICF SH & E, one of the world’s largest and oldest aviation consultancies, is now doing business as ICF International.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5032 contacts →

Exact match

“Governance & Accountability Institute is organized as the “Sustainability Headquarters™” for clients in the corporate community and in the investment and financial services sector.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchNew York, United StatesHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Planet Reimagined uses an innovative action-research method to incubate and scale creative solutions to our most pressing climate problems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 21, 20261-1024 contacts →

Exact match

“A new media company focused on the biggest story of our time: climate change.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5023 contacts →

Exact match

“Demand for affordable, reliable and lower-carbon energy will continue to grow, fueled by our expanding population, the rising global middle class and energy-intensive industries…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5019 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
24Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5018 contacts →

Exact match

“We are a management consulting firm that delivers value through knowledge and innovation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“dClimate is the world’s first transparent, decentralized marketplace where climate data, forecasts, and models are standardized, monetized, and distributed.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 251 climate consultancies based in New York, United States

See the full list, filter by size, metro and specialty, and access 3,140 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Climate consultancies based in New York, United States at a glance

As of Sep 21, 2026
50.0%Verified-email coverage
25.0Average contacts per company
1-10Median size (employees)
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
177
11-50
50
51-200
20
201-500
1
501-1,000
2
1,001-5,000
1

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.

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 consultancies” 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 3,140 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.

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

How many climate consultancies are there based in New York, United States?

RevenueBase identified 251 company matches for climate consultancies 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?

Hazen And Sawyer 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 consultancies?

New York leads the United States with 251 company records, followed by Washington (146) and Houston (145).

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 3,140 professional contacts with verified work emails tracked across these 251 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.