Company lists · Data refreshed September 2026

Top 25 Climate due diligence consultancies based in New York, United States

RevenueBase identified 137 company matches for climate due diligence consultancies associated with New York, United States as of September 2026 and tracks 947 professional contacts across them, including 303 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for climate due diligence 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 27, 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 27, 2026 How this list was built
137Companies
947Contacts tracked
303Verified emails
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The 25 largest climate due diligence consultancies based in New York, United States

Ranked by team size
Top 25 of 137 company matches for climate due diligence consultancies based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 27, 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 27, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
3Exact matchNew York, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5047 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5019 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 27, 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 27, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-1012 contacts →

Exact match

“TJBauman, LLC is a NYC sustainable development strategy and communications firm specializing in the market opportunities for advancing positive social impact and regenerative…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-1011 contacts →

Exact match

“Ganey Science is a small business enterprise based in New York.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-1010 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 27, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-20010 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 27, 2026 · View company records in RevenueBase
12Exact matchNew York, United StatesHQ recorded Sep 27, 20261-1010 contacts →

Exact match

“GreenPortfolio bridges the gap between wealth and impact.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-1010 contacts →

Exact match

“The Bassiouni Group (TBG) is a global consulting firm.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchNew York, United StatesHQ recorded Sep 27, 202651-20010 contacts →

Exact match

“Turbo Net Zero is a sustainability consultancy company that focuses on providing comprehensive ESG solutions for corporates and investors.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-509 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 27, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-109 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 27, 2026 · View company records in RevenueBase
17Exact matchNew York, United StatesHQ recorded Sep 27, 202611-508 contacts →

Exact match

“BuzzWord, part of Anthesis, helps companies develop effective sustainability reporting and disclosure strategies, provides guidance on aligning with frameworks and requirements…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-508 contacts →

Exact match

“Dragonfly, LLC provides strategy consulting, risk management advisory, as well as investment analysis and modeling.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-507 contacts →

Exact match

“AreaHub™ delivers environmental intelligence+™ - a powerful environmental risk management platform designed to help clients minimize losses and maximize profitability.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-106 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 27, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-506 contacts →

Exact match

“Azuri is a boutique sustainability consultancy supporting organizations to innovate, build resilience, and create long-term value within planetary and societal boundaries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchNew York, United StatesHQ recorded Sep 27, 20261-106 contacts →

Exact match

“At MILE we focus on an integrative and collaborative approach towards advisory and business development services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261-105 contacts →

Exact match

“KO2 Consulting provides strategic energy consultant services for government agencies, non- profit organizations and private companies to achieve organizational energy performance…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchNew York, United StatesHQ recorded Sep 27, 202611-505 contacts →

Exact match

“A creative climate communications and consulting agency.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-505 contacts →

Exact match

“With experience across sectors, we support the development, management, and integration of sustainability and ESG strategies that are relevant and cost-effective.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 137 climate due diligence consultancies based in New York, United States

See the full list, filter by size, metro and specialty, and access 303 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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

As of Sep 27, 2026
32.0%Verified-email coverage
6.9Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
104
11-50
25
51-200
8

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 due diligence 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 303 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 27, 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 due diligence consultancies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 137 company matches for climate due diligence 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?

Onepointfive Opf.Degree 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 due diligence consultancies?

New York leads the United States with 137 company records, followed by Washington (74) and Houston (60).

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 303 professional contacts with verified work emails tracked across these 137 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 27, 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.