Company lists · Data refreshed August 2026

Top 25 Clean energy software companies based in the United States

Name: Clean energy software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 1,567 companies tracked

RevenueBase identified 1,567 clean energy software companies headquartered in the United States as of August 2026 and tracks 48,939 professional contacts across them, including 16,264 with verified work emails and 17,477 with mobile numbers. Houston is the largest hub.

This list covers clean energy software companies headquartered in the 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

1,567Companies

48,939Contacts tracked

16,264Verified emails

17,477Mobile numbers

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The 25 largest clean energy software companies based in the United States

Ranked by team size

Top 25 of 1,567 clean energy software companies based in the United States, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to clean energy software companies: 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	Constellation	Partial evidence	Baltimore, MD, United States	10001+	9,461 contacts →
	Partial evidence “Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Source: RevenueBase Database · checked Aug 31, 2026
2	Envision Energy	Partial evidence	Houston, TX, United States	1,001-5,000	1,945 contacts →
	Partial evidence “Envision Energy is a world-leading green technology company that provides renewable energy solutions for global enterprises, governments, and institutions.” Source: RevenueBase Database · checked Aug 31, 2026
3	Fluence	Partial evidence	Mountain View, CA, United States	1,001-5,000	1,842 contacts →
	Partial evidence “To achieve our mission, we design, deploy, and operate the world’s most advanced modular energy storage products, comprehensive lifecycle services, and AI-enabled asset management…” Source: RevenueBase Database · checked Aug 31, 2026
4	GE Digital	Strong evidence	San Ramon, CA, United States	1,001-5,000	1,773 contacts →
	Strong evidence “At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.” Source: RevenueBase Database · checked Aug 31, 2026
5	Goodleap	Strong evidence	Roseville, CA, United States	501-1,000	1,127 contacts →
	Strong evidence “GoodLeap is a technology company delivering best-in-class financing and software products for sustainable solutions, from solar panels and batteries to energy-efficient HVAC, heat…” Source: RevenueBase Database · checked Aug 31, 2026
6	Clarke Energy	Partial evidence	Waukesha, United States	1,001-5,000	1,044 contacts →
	Partial evidence “Clarke Energy, a Rehlko company, specialises in energy efficient, low carbon and flexible energy systems.” Source: RevenueBase Database · checked Aug 31, 2026
7	Sunnova Energy	Strong evidence	Houston, TX, United States	501-1,000	940 contacts →
	Strong evidence “Sunnova Energy International Inc.(NYSE: NOVA) is an industry-leading energy services company focused on making clean energy more accessible, reliable, and affordable for…” Source: RevenueBase Database · checked Aug 31, 2026
8	Depcom Power, INC	Partial evidence	Bedminster, NJ, United States	1,001-5,000	623 contacts →
	Partial evidence “DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…” Source: RevenueBase Database · checked Aug 31, 2026
9	Palmetto	Strong evidence	Charlotte, NC, United States	201-500	533 contacts →
	Strong evidence “Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.” Source: RevenueBase Database · checked Aug 31, 2026
10	Uplight	Strong evidence	Boulder, CO, United States	501-1,000	484 contacts →
	Strong evidence “Uplight is a clean energy technology company that unlocks grid capacity by activating customers and their connected devices to generate, shift, and save energy.” Source: RevenueBase Database · checked Aug 31, 2026
11	V3 Electric, INC	Partial evidence	Rancho Cucamonga, CA, United States	201-500	369 contacts →
	Partial evidence “V3 was founded as a response to the stagnation within the energy industry.” Source: RevenueBase Database · checked Aug 31, 2026
12	Supernova	Partial evidence	Denver, CO, United States	201-500	366 contacts →
	Partial evidence “Supernova embodies the spirit of innovation and dedication to a sustainable future, making it a shining example of what it means to be a leader in the renewable energy industry.” Source: RevenueBase Database · checked Aug 31, 2026
13	Budderfly	Partial evidence	Shelton, CT, United States	201-500	359 contacts →
	Partial evidence “Budderfly is redefining how energy efficiency, resilience, and grid participation can work together across America’s commercial sector.” Source: RevenueBase Database · checked Aug 31, 2026
14	PCI Energy Solutions	Indirect evidence	Norman, OK, United States	201-500	345 contacts →
	Indirect evidence “PCIEnergySolutions is a tight-knit team of 300 diligent product experts, engineers, business analysts, and more.” Source: RevenueBase Database · checked Aug 31, 2026
15	AMSC	Partial evidence	Ayer, MA, United States	201-500	333 contacts →
	Partial evidence “AMSC (NASDAQ: AMSC) generates the ideas, technologies and solutions that meet the world’s demand for smarter, cleaner … better energy.” Source: RevenueBase Database · checked Aug 31, 2026
16	Meraki Solar	Indirect evidence	Dallas, TX, United States	1,001-5,000	274 contacts →
	Indirect evidence “People.” Source: RevenueBase Database · checked Aug 31, 2026
17	Baywa R.E. Americas	Partial evidence	Santa Fe, NM, United States	201-500	264 contacts →
	Partial evidence “rethinkenergy BayWa r.e is a leading global renewable energy company committed to delivering best-in-class projects, services and solutions.” Source: RevenueBase Database · checked Aug 31, 2026
18	Skyspecs	Indirect evidence	Ann Arbor, MI, United States	201-500	262 contacts →
	Indirect evidence “SkySpecs powers every connection across the renewable asset lifecycle by bringing inspections, analytics, financial intelligence, and execution into one unified platform.” Source: RevenueBase Database · checked Aug 31, 2026
19	Infinity Energy INC	Strong evidence	Rocklin, CA, United States	201-500	259 contacts →
	Strong evidence “Infinity Energy, we exist to power you At Infinity Energy we connect people to clean energy and customized home solutions.” Source: RevenueBase Database · checked Aug 31, 2026
20	Powerflex	Strong evidence	Mountain View, CA, United States	201-500	249 contacts →
	Strong evidence “PowerFlex is a clean technology solutions company making the transition to carbon-free energy possible through a combination of green offerings, including solar, storage, EV…” Source: RevenueBase Database · checked Aug 31, 2026
21	Boundless, INC	Indirect evidence	Marlborough, MA, United States	201-500	227 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
22	Lunar Energy	Strong evidence	Mountain View, CA, United States	201-500	223 contacts →
	Strong evidence “Lunar exists to power homes around the world with endless clean energy.” Source: RevenueBase Database · checked Aug 31, 2026
23	Origis Energy	Partial evidence	Miami, FL, United States	201-500	218 contacts →
	Partial evidence “Origis Energy is accelerating the transition to a carbon-free future by Reimagining ZeroSM.” Source: RevenueBase Database · checked Aug 31, 2026
24	Motive Energy	Partial evidence	San Antonio, TX, United States	201-500	204 contacts →
	Partial evidence “Motive Energy transforms how businesses source, store, convert, move, and manage their energy through end-to-end solutions that empower customers to take control of their energy.” Source: RevenueBase Database · checked Aug 31, 2026
25	Green World Renewable Energy LLC	Partial evidence	Baltimore, MD, United States	201-500	180 contacts →
	Partial evidence “Green World Renewable Energy delivers smart, scalable solar engineering and back-office design solutions for residential, commercial, and utility-scale projects across the U.S.” Source: RevenueBase Database · checked Aug 31, 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: clean energy software companies. 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 clean energy software companies.
Partial evidence: Its own public description names part of clean energy software companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clean energy software companies. 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 25 of 1,567 clean energy software companies based in the United States

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Clean energy software companies based in the United States at a glance

As of Aug 31, 2026

33.2%Verified-email coverage

35.7%Mobile-number coverage

31.2Average contacts per company

11-50Median size (employees)

3.7%Largest-city concentration · Houston

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

670

11-50

562

51-200

232

201-500

501-1,000

1,001-5,000

10001+

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 companies, 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 the United States whose own description of what they do matches “clean energy software companies”. 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 companies), 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 companies, and records with no verified work email. Companies headquartered outside United States 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, 16,264 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 August 31, 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 companies by metro

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 companies, 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 companies are there based in the United States?

RevenueBase identified 1,567 clean energy software companies headquartered in the United States as of August 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?

Constellation, headquartered in Baltimore, tops this list with the largest team on record.

Which city has the most clean energy software companies?

Houston leads with 58 headquartered companies, followed by New York (46) and San Francisco (40).

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 16,264 verified decision-maker contacts tracked across these 1,567 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.