Company lists · Data refreshed September 2026

Top 21 Sustainable energy consultants based in New York, United States

RevenueBase identified 134 sustainable energy consultants headquartered in New York, United States as of September 2026 and tracks 1,548 professional contacts across them, including 810 with verified work emails. Houston is the largest hub.

This list covers sustainable energy consultants 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 18, 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 18, 2026 86% judged on-target in blind review
134Companies
1,548Contacts tracked
810Verified emails
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The 21 largest sustainable energy consultants based in New York, United States

Ranked by team size
Top 21 of 134 sustainable energy consultants based in New York, United States, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-200205 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 18, 2026
2Strong evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-20098 contacts →

Strong evidence

“Environ Energy is a leader in accelerating global sustainable energy transformation for more than 30 years.”

Source: RevenueBase Database · checked Sep 18, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-20085 contacts →

Partial 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 18, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-20075 contacts →

Indirect evidence

“We help building owners cut carbon, reduce costs, and stay compliant.”

Source: RevenueBase Database · checked Sep 18, 2026
5Strong evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-20072 contacts →

Strong evidence

“CodeGreen is a leading national sustainability and energy efficiency consulting firm.”

Source: RevenueBase Database · checked Sep 18, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-20067 contacts →

Partial evidence

“Onyx Renewables is a leading provider of predictable, affordable clean energy solutions nationwide.”

Source: RevenueBase Database · checked Sep 18, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5049 contacts →

Partial 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 18, 2026
8Strong evidenceNew York, United StatesHQ checked Sep 18, 202651-20030 contacts →

Strong 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 18, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5029 contacts →

Partial evidence

“Carleton Energy specializes in Local Law 87 & Local Law 84 benchmarking compliance.”

Source: RevenueBase Database · checked Sep 18, 2026
10Partial evidenceNew York, United StatesHQ checked Sep 18, 202611-5027 contacts →

Partial evidence

“Catalyst Power develops novel and highly repeatable energy supply options for commercial and industrial end-users of all sizes.”

Source: RevenueBase Database · checked Sep 18, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5025 contacts →

Partial evidence

“OnForce Solar is a vertically integrated renewable energy company committed to providing its customers with the most intelligently designed, efficient, and cost effective energy…”

Source: RevenueBase Database · checked Sep 18, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5021 contacts →

Partial 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 18, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5019 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 18, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5019 contacts →

Partial evidence

“Orange Energizing Solutions (OES) is a leading provider and installer of cost effective energy efficient solutions for all commercial refrigeration businesses.”

Source: RevenueBase Database · checked Sep 18, 2026
15Indirect evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5018 contacts →

Indirect evidence

“SIGMA7 design group is a full service Architectural & Engineering firm providing consulting, strategic planning, design and project management services.”

Source: RevenueBase Database · checked Sep 18, 2026
16Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202651-20015 contacts →

Partial evidence

“Listen To Your Building Artis Energy™, through its subsidiaries Artis Energy Intelligence and Artis Energy Solutions, brings a unique combination of analytics, technology and…”

Source: RevenueBase Database · checked Sep 18, 2026
17Strong evidenceNew York, United StatesHQ checked Sep 18, 202611-5015 contacts →

Strong evidence

“SOLO is a sustainable energy service company specializing in energy efficiency, electrification, and renewable solutions.”

Source: RevenueBase Database · checked Sep 18, 2026
18Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 20261-1013 contacts →

Partial evidence

“Sunlight Energy Group works with companies to lower costs by developing powerful energy management plans that reduce usage, secure the best rates, and leverage emerging…”

Source: RevenueBase Database · checked Sep 18, 2026
19Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 202611-5012 contacts →

Partial evidence

“Werpo is a full-service design-and-build energy conservation firm providing cost-effective solutions for our clients.”

Source: RevenueBase Database · checked Sep 18, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 18, 20261,001-5,00011 contacts →

Partial evidence

“Unity International Group, an Equans company, helps industry leaders with electrical and energy services projects.”

Source: RevenueBase Database · checked Sep 18, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 18, 20261-108 contacts →

Indirect evidence

“Mosto Technologies Inc.”

Source: RevenueBase Database · checked Sep 18, 2026

Showing 21 of 134 sustainable energy consultants based in New York, United States

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Sustainable energy consultants based in New York, United States at a glance

As of Sep 18, 2026
52.3%Verified-email coverage
11.6Average contacts per company
11-50Median size (employees)
129.9%Largest-city concentration · Houston
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
65
11-50
47
51-200
20
201-500
1
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, over 134 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 sustainable energy consultants, 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 “sustainable energy consultants”. 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 sustainable energy consultants), 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 sustainable energy consultants, 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, 810 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 18, 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.

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 sustainable energy consultants, 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 sustainable energy consultants are there based in New York, United States?

RevenueBase identified 134 sustainable energy consultants 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?

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

Which city has the most sustainable energy consultants?

Houston leads with 174 headquartered companies, followed by New York (134) and Chicago (73).

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 810 verified decision-maker contacts tracked across these 134 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 18, 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.