Company lists · Data refreshed September 2026

Top 23 Decarbonization consultancies based in New York, United States

Name: Decarbonization consultancies 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 28, 2026 207 companies tracked

RevenueBase identified 207 decarbonization consultancies headquartered in New York, United States as of September 2026 and tracks 2,700 professional contacts across them, including 1,403 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers decarbonization consultancies headquartered in New York, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

207Companies

2,700Contacts tracked

1,403Verified emails

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The 23 largest decarbonization consultancies based in New York, United States

Ranked by team size

Top 23 of 207 decarbonization consultancies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to decarbonization consultancies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Greenly	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	305 contacts →
	Indirect evidence “Greenly is on a mission to democratize access to science-backed climate intelligence, transforming sustainability from a compliance burden into a strategic competitive advantage.” Source: RevenueBase Database · checked Sep 28, 2026
2	Bright Power	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	205 contacts →
	Partial evidence “Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Source: RevenueBase Database · checked Sep 28, 2026
3	Onepointfive Opf.Degree	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	133 contacts →
	Indirect evidence “At OnePointFive we solve your sustainability focused business challenges by empowering your organization with expert-led solutions, embedded training, and cutting edge tools to…” Source: RevenueBase Database · checked Sep 28, 2026
4	Luminace	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	126 contacts →
	Partial evidence “Luminace is one of the largest fully integrated decarbonization-as-a-service solution providers in North America, sponsoring accessible, reliable and renewable energy…” Source: RevenueBase Database · checked Sep 28, 2026
5	Environ Energy	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	98 contacts →
	Indirect evidence “Environ Energy is a leader in accelerating global sustainable energy transformation for more than 30 years.” Source: RevenueBase Database · checked Sep 28, 2026
6	Euclid Power	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	85 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
7	En-Power Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “We help building owners cut carbon, reduce costs, and stay compliant.” Source: RevenueBase Database · checked Sep 28, 2026
8	Codegreen	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	72 contacts →
	Indirect evidence “CodeGreen is a leading national sustainability and energy efficiency consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
9	Crc-Ib	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	67 contacts →
	Indirect evidence “CRC-IB is a full-service investment bank providing industry-leading financial services across the energy transition.” Source: RevenueBase Database · checked Sep 28, 2026
10	Green Project Technologies	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	63 contacts →
	Indirect evidence “Green Project Technologies, an ACT Group company, is the global AI-powered platform helping enterprises and their suppliers measure, manage, and reduce emissions across operations…” Source: RevenueBase Database · checked Sep 28, 2026
11	Sealed	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Sealed is a climate tech company on a mission to stop home energy waste by enabling contractors to install more home weatherization and electrification projects and grow their…” Source: RevenueBase Database · checked Sep 28, 2026
12	INF Associates	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	51 contacts →
	Partial evidence “INF Associates is an energy solutions integrator providing turnkey solutions in decarbonization of transportation and buildings.” Source: RevenueBase Database · checked Sep 28, 2026
13	Energy Infrastructure Partners LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	49 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
14	Growlity, INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	47 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
15	Highmark Building Efficiency	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	43 contacts →
	Partial evidence “HIGHMARK’s mission is to support building sustainability, electrification, decarbonization and cost savings.” Source: RevenueBase Database · checked Sep 28, 2026
16	Independence Point Advisors	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “Independence Point Advisors (IPA) is a women-owned investment bank headquartered in New York City, committed to delivering differentiated, high-quality advice that leverages the…” Source: RevenueBase Database · checked Sep 28, 2026
17	Carbonquest	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	36 contacts →
	Partial evidence “Leading the QUEST for decarbonization by providing urban building owners advanced technologies and solutions that ENABLE acceleration of global carbon reduction NOW CarbonQuest…” Source: RevenueBase Database · checked Sep 28, 2026
18	F & D Partners, INC	Indirect evidence	New York, United StatesHQ checked Sep 28, 2026	51-200	30 contacts →
	Indirect evidence “F&D Partners is a leading energy consultant in many deregulated US states, Canada, Mexico, the UK and Ireland.” Source: RevenueBase Database · checked Sep 28, 2026
19	Carleton Energy Consulting	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “Carleton Energy specializes in Local Law 87 & Local Law 84 benchmarking compliance.” Source: RevenueBase Database · checked Sep 28, 2026
20	Javelin Capital	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	23 contacts →
	Indirect evidence “Founded in 2017, Javelin Capital is a boutique investment banking firm for companies in the renewable energy, energy storage and green chemistry sectors.” Source: RevenueBase Database · checked Sep 28, 2026
21	Firstservice Energy	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Indirect evidence “FirstService Energy is the energy management and advisory affiliate of FirstService Residential the largest manager of residential communities in North America.” Source: RevenueBase Database · checked Sep 28, 2026
22	Altanova	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Altanova is a sustainability firm with consulting and engineering capabilities.” Source: RevenueBase Database · checked Sep 28, 2026
23	Hoffman	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	15 contacts →
	Indirect evidence “Richard L.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: decarbonization consultancies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names decarbonization consultancies.
Partial evidence: Its own public description names part of decarbonization consultancies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name decarbonization consultancies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 23 of 207 decarbonization consultancies based in New York, United States

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

As of Sep 28, 2026

52.0%Verified-email coverage

13.0Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

131

11-50

51-200

201-500

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 207 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among decarbonization consultancies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in New York, United States whose own description of what they do matches “decarbonization consultancies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names decarbonization consultancies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among decarbonization consultancies, and records with no verified work email. Companies headquartered outside New York are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 1,403 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Decarbonization consultancies by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names decarbonization consultancies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 207 decarbonization consultancies headquartered in New York, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Greenly, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most decarbonization consultancies?

New York leads the United States with 207 headquartered companies, followed by Houston (198) and Washington (88).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,403 verified decision-maker contacts tracked across these 207 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.