Company lists · Data refreshed September 2026
Top 25 Clean energy technology firms based in Austin, United States
RevenueBase identified 91 clean energy technology firms headquartered in Austin, United States as of September 2026 and tracks 2,219 professional contacts across them, including 992 with verified work emails. New York is the largest hub.
This list covers clean energy technology firms headquartered in Austin, 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 16, 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.
The 25 largest clean energy technology firms based in Austin, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 931 contacts → | ||||
Partial evidence “Recurrent Energy, a subsidiary of Canadian Solar Inc, is one of the world's largest and most geographically diversified utility-scale solar and energy storage project development…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 259 contacts → | ||||
Indirect evidence “Freedom Solar Power is the leader in turnkey solar installations in Texas, Colorado, Florida, Virginia and North Carolina, providing high quality, cost-effective, reliable solar…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 188 contacts → | ||||
Partial evidence “Jupiter Power is putting deep energy storage expertise, proven project execution capability, and significant capital to work to help make the energy transition a reality.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 117 contacts → | ||||
Strong evidence “GivePower’s mission is to electrify the world with clean energy, and provide greater health, economic and educational opportunities for developing regions that need them most.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 95 contacts → | ||||
Strong evidence “Treaty Oak Clean Energy is a community-oriented, full-service leader in solar and battery storage solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 80 contacts → | ||||
Partial evidence “Origis Energy is accelerating the transition to a carbon-free future by Reimagining Zero.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 41 contacts → | ||||
Indirect evidence “Our vision is to empower and enlighten residential and commercial customers in Texas.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 contacts → | ||||
Partial evidence “At HOLT Renewables, we’re the driving force behind commercial renewable energy projects nationwide.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 contacts → | ||||
Strong evidence “Dastur Energy is an Austin, Texas based energy technology company, that is leading the way in the field of clean energy, with a strong track record of pioneering innovative…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 21 contacts → | ||||
Indirect evidence “Axis Solar is your trusted partner for engineering, procurement, and construction of commercial solar systems.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 14 contacts → | ||||
Partial evidence “At Vikta Energy, we’re redefining the solar industry by delivering cutting-edge Tesla Energy products and exceptional service.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 13 contacts → | ||||
Indirect evidence “ATX Solar was founded on the principle of empowering people.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 12 contacts → | ||||
Partial evidence “At 512 Solar, we are dedicated to providing remarkable renewable energy solutions to the Austin area we call home.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Indirect evidence “Amidst ever-growing demand, FGE Power forges forward to develop and provide innovative power solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 10 contacts → | ||||
Indirect evidence “America’s first, highest rated, and largest direct to customer solar, battery, and EV charging service only company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 8 contacts → | ||||
Partial evidence “Industrial Sun is a renewable energy and storage developer, purpose-built to serve industrial and high energy demand customers, including refineries, pumping and compression…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 8 contacts → | ||||
Indirect evidence “Solar Proponent leverages the enormous potential of solar power to create sustainable electricity infrastructure through development of a premier pipeline of utility-scale PV…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 8 contacts → | ||||
Partial evidence “Founded in late 2020, Accelergen Energy LLC is a greenfield renewable energy developer focused on utility-scale solar, solar plus storage, and standalone storage projects.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 7 contacts → | ||||
Partial evidence “For the last 25 years, Energiekontor has stood for a sound approach to business and a wealth of experience in wind power.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Strong evidence “Renewable energy company focused on development of utility-scale clean energy projects in the United States.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Partial evidence “With over 70 years of combined experience in renewable energy, the UPower Energy team unlocks the full potential of distributed energy ecosystems by providing financing…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Strong evidence “Thunder Said Energy is a research firm focused on energy technologies and energy transition.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Partial evidence “The name Solvent Energy was derived by Michel Jouven from the French words for solar and wind, “solaire” and “vent”.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Partial evidence “Divergent Solar is a top tier brokerage that helps homeowners and businesses save thousands by switching to sustainable energy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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 technology firms. 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 technology firms.
- Partial evidence
- Its own public description names part of clean energy technology firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name clean energy technology firms. 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 91 clean energy technology firms based in Austin, United States
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Clean energy technology firms based in Austin, United States at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Austin, so it is reported there. Company counts and contact totals on this page are exact for Austin, over 91 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 technology firms, 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 Austin, United States whose own description of what they do matches “clean energy technology firms”. 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 technology firms), 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 technology firms, and records with no verified work email. Companies headquartered outside Austin 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, 992 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 16, 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 technology firms by metro in the United States
- Clean energy technology firms in New York146
- Clean energy technology firms in Houston127
- Clean energy technology firms in Austin91
- Clean energy technology firms in San Diego87
- Clean energy technology firms in San Francisco71
- Clean energy technology firms in Los Angeles69
- Clean energy technology firms in Dallas68
- Clean energy technology firms in Chicago60
- Clean energy technology firms in Miami58
- Clean energy technology firms in Denver54
- Clean energy technology firms in Phoenix50
- Clean energy technology firms in Orlando44
- Clean energy technology firms in Boston43
- Clean energy technology firms in Irvine40
- Clean energy technology firms in San Antonio40
- Clean energy technology firms in Las Vegas38
- Clean energy technology firms in Tampa38
- Clean energy technology firms in Washington37
- Clean energy technology firms in Atlanta33
- Clean energy technology firms in Charlotte30
- Clean energy technology firms in Scottsdale30
- Clean energy technology firms in Portland29
- Clean energy technology firms in San Jose27
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 technology firms, 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 technology firms are there based in Austin, United States?
RevenueBase identified 91 clean energy technology firms headquartered in Austin, 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?
Recurrent Energy, headquartered in Austin, tops this list with the largest team on record.
Which city has the most clean energy technology firms?
New York leads with 146 headquartered companies, followed by Houston (127) and Austin (91).
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 992 verified decision-maker contacts tracked across these 91 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 16, 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.
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