Company lists · Data refreshed September 2026

Top 22 Clean energy software startups based in New York, United States

RevenueBase identified 34 clean energy software startups headquartered in New York, United States as of September 2026 and tracks 804 professional contacts across them, including 372 with verified work emails. Across the United States, Houston is the largest hub for this category (68 companies); New York has 34.

This list covers clean energy software startups 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 27, 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 27, 2026 86% judged on-target in blind review
34Companies
804Contacts tracked
372Verified emails
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The 22 largest clean energy software startups based in New York, United States

Ranked by team size
Top 22 of 34 clean energy software startups based in New York, United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy software startups: 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
1Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-200216 contacts →

Strong evidence

“HOC, founded in 2001, specializes in building software for the energy trading and financial services sectors.”

Source: RevenueBase Database · checked Sep 27, 2026
2Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-20097 contacts →

Strong evidence

“Aspen's highly experienced team of experts across financing, development, construction, and asset management of distributed clean energy assets is the ideal partner for local…”

Source: RevenueBase Database · checked Sep 27, 2026
3Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-20067 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
4Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5065 contacts →

Strong evidence

“Common Energy works with developers across the country to activate their clean energy projects and maximize ROI.”

Source: RevenueBase Database · checked Sep 27, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5051 contacts →

Partial evidence

“INF Associates is an energy solutions integrator providing turnkey solutions in decarbonization of transportation and buildings.”

Source: RevenueBase Database · checked Sep 27, 2026
6Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5039 contacts →

Strong evidence

“Tango Energy & Sustainability (fka WatchWire) is a sustainability and energy management software-as-a-service (EMSaaS) provider.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceNew York, United StatesHQ checked Sep 27, 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 27, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5023 contacts →

Partial evidence

“Empowered Buildings empowers owners and managers with advanced energy efficiency technologies to reduce emissions, lower costs, ensure compliance, and optimize overall building…”

Source: RevenueBase Database · checked Sep 27, 2026
9Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 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 27, 2026
10Partial evidenceNew York, United StatesHQ checked Sep 27, 202611-5015 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
11Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-5011 contacts →

Strong evidence

“Our mission is to accelerate the transition to clean, distributed, and affordable energy systems.”

Source: RevenueBase Database · checked Sep 27, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-1011 contacts →

Partial evidence

“Scaling decarbonization through powerful software solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
13Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-2009 contacts →

Partial evidence

“Scope 5 is now part of Environ Energy, a leader in accelerating global sustainable energy transformation for more than 30 years.”

Source: RevenueBase Database · checked Sep 27, 2026
14Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-107 contacts →

Strong evidence

“Perl Street provides portfolio management software that enables distributed energy companies to grow and meet the challenges of an emerging asset class.”

Source: RevenueBase Database · checked Sep 27, 2026
15Strong evidenceNew York, United StatesHQ checked Sep 27, 202611-506 contacts →

Strong evidence

“Bitgreen develops software products that introduce scalability, accessibility, and efficiency in renewable energy development and sustainable finance.”

Source: RevenueBase Database · checked Sep 27, 2026
16Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-106 contacts →

Strong evidence

“EHI Cleantech Ventures is committed to identifying and nurturing the next generation of clean technology startups.”

Source: RevenueBase Database · checked Sep 27, 2026
17Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-105 contacts →

Strong evidence

“Solar Collective plans, builds and finances clean energy projects.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“CleanTechIQ is a company based out of New York, NY, United States.”

Source: RevenueBase Database · checked Sep 27, 2026
19Strong evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-102 contacts →

Strong evidence

“Upward is a software platform that collects, analyzes, and stores building energy data for energy solutions companies.”

Source: RevenueBase Database · checked Sep 27, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202651-2001 contacts →

Partial evidence

“ClearCell Power is a WBENC- and MWBE-certified renewable energy infrastructure developer specializing in fuel cells, hydrogen, battery energy storage (BESS), and solar solutions.”

Source: RevenueBase Database · checked Sep 27, 2026
21Partial evidenceNew York, NY, United StatesHQ checked Sep 27, 202611-501 contacts →

Partial evidence

“Renewable Energy, Electric Vehicle Charging, Green Cities, Energy Storage, Microgrids, Solar, Biomass”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceNew York, NY, United StatesHQ checked Sep 27, 20261-101 contacts →

Indirect evidence

“At FEAT Solutions, we believe that buildings have untapped potential-not just to function efficiently but to contribute meaningfully to a sustainable future.”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 22 of 34 clean energy software startups based in New York, United States

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Clean energy software startups based in New York, United States at a glance

As of Sep 27, 2026
46.3%Verified-email coverage
23.6Average contacts per company
11-50Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
15
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, over 34 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 clean energy software startups, 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 “clean energy software startups”. 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 clean energy software startups), 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 clean energy software startups, 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, 372 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 27, 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.

Clean energy software startups 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 clean energy software startups, 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 clean energy software startups are there based in New York, United States?

RevenueBase identified 34 clean energy software startups 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?

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

Which city in the United States has the most clean energy software startups?

Houston leads the United States with 68 headquartered companies, followed by San Francisco (40) and New York (34).

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 372 verified decision-maker contacts tracked across these 34 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 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 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.