Company lists · Data refreshed September 2026

Top 25 Renewable energy tech companies based in Austin, United States

Name: Renewable energy tech companies based in Austin, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 60 companies tracked

RevenueBase identified 60 renewable energy tech companies headquartered in Austin, United States as of September 2026 and tracks 66,505 professional contacts across them, including 30,703 with verified work emails. New York is the largest hub.

This list covers renewable energy tech companies 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 17, 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 17, 2026 86% judged on-target in blind review

60Companies

66,505Contacts tracked

30,703Verified emails

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The 25 largest renewable energy tech companies based in Austin, United States

Ranked by team size

Top 25 of 60 renewable energy tech companies based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to renewable energy tech 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	TESLA	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	10001+	64,646 contacts →
	Indirect evidence “Tesla is accelerating the world’s transition to sustainable abundance.” Source: RevenueBase Database · checked Sep 17, 2026
2	Recurrent Energy	Partial evidence	Austin, United StatesHQ checked Sep 17, 2026	501-1,000	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 17, 2026
3	Jupiter Power	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	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 17, 2026
4	T1 Energy INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	163 contacts →
	Partial evidence “T1 Energy (NYSE: TE) is building an integrated U.S.” Source: RevenueBase Database · checked Sep 17, 2026
5	Treaty OAK Clean Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	95 contacts →
	Partial evidence “Treaty Oak Clean Energy is a community-oriented, full-service leader in solar and battery storage solutions.” Source: RevenueBase Database · checked Sep 17, 2026
6	Origis Energy Services	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	80 contacts →
	Partial evidence “Origis Energy is accelerating the transition to a carbon-free future by Reimagining Zero.” Source: RevenueBase Database · checked Sep 17, 2026
7	Trailstone Group	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	201-500	68 contacts →
	Strong evidence “Trailstone is a global energy and technology company, operating at the intersection of renewable and conventional power.” Source: RevenueBase Database · checked Sep 17, 2026
8	Lighthouse Solar Austin	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	41 contacts →
	Indirect evidence “Our vision is to empower and enlighten residential and commercial customers in Texas.” Source: RevenueBase Database · checked Sep 17, 2026
9	Vikta Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	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 17, 2026
10	FGE Power	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	12 contacts →
	Indirect evidence “Amidst ever-growing demand, FGE Power forges forward to develop and provide innovative power solutions.” Source: RevenueBase Database · checked Sep 17, 2026
11	Solar Service	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	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 17, 2026
12	Industrial SUN	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	8 contacts →
	Strong 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 17, 2026
13	Solar Proponent LLC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	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 17, 2026
14	Accelergen Energy LLC	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	8 contacts →
	Strong 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 17, 2026
15	Energiekontor US INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	51-200	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 17, 2026
16	Open Road Renewables	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	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 17, 2026
17	Thunder Said Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “Thunder Said Energy is a research firm focused on energy technologies and energy transition.” Source: RevenueBase Database · checked Sep 17, 2026
18	Solvent Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	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 17, 2026
19	Entero Energy LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Partial evidence “Commercial Solar: We design and construct solar energy systems for building owners.” Source: RevenueBase Database · checked Sep 17, 2026
20	Osiyo Renewables LLC	Strong evidence	Austin, United StatesHQ checked Sep 17, 2026	1-10	4 contacts →
	Strong evidence “Developing and investing in renewable energy projects across the Americas; serving corporate and institutional clients with customized, efficient clean energy solutions” Source: RevenueBase Database · checked Sep 17, 2026
21	High Road Clean Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	3 contacts →
	Partial evidence “Early to mid-stage solar energy developer.” Source: RevenueBase Database · checked Sep 17, 2026
22	Sunchase Power LLC	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	3 contacts →
	Strong evidence “SunChase Power LLC is a renewable energy company focused on developing utility-scale and large industrial behind-the-meter solar energy projects.” Source: RevenueBase Database · checked Sep 17, 2026
23	Outlier Energy	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	2 contacts →
	Partial evidence “Outlier Energy develops firm and carbon-free power generation resources for commercial and industrial customers who insist on reliable power and zero carbon.” Source: RevenueBase Database · checked Sep 17, 2026
24	Powerfin	Indirect evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	2 contacts →
	Indirect evidence “PowerFin develops, constructs, operates and sponsors solar projects.” Source: RevenueBase Database · checked Sep 17, 2026
25	Solar Pivot Power	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	1 contacts →
	Strong evidence “Creative solutions to maximize renewable energy generation and storage” Source: RevenueBase Database · checked Sep 17, 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: renewable energy tech 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 renewable energy tech companies.
Partial evidence: Its own public description names part of renewable energy tech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy tech 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 60 renewable energy tech companies based in Austin, United States

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Renewable energy tech companies based in Austin, United States at a glance

As of Sep 17, 2026

46.2%Verified-email coverage

1108.4Average contacts per company

1-10Median size (employees)

148.3%Largest-city concentration · New York

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

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 60 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 renewable energy tech 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 Austin, United States whose own description of what they do matches “renewable energy tech 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 renewable energy tech 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 renewable energy tech companies, 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, 30,703 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 17, 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.

Renewable energy tech companies by metro in the United States

Renewable energy tech companies in New York89
Renewable energy tech companies in Houston79
Renewable energy tech companies in Austin60
Renewable energy tech companies in Dallas46
Renewable energy tech companies in San Diego44
Renewable energy tech companies in Los Angeles43
Renewable energy tech companies in San Francisco40
Renewable energy tech companies in Chicago38
Renewable energy tech companies in Boston30
Renewable energy tech companies in Miami30
Renewable energy tech companies in Irvine26
Renewable energy tech companies in Orlando25

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 renewable energy tech 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 renewable energy tech companies are there based in Austin, United States?

RevenueBase identified 60 renewable energy tech companies 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?

TESLA, headquartered in Austin, tops this list with the largest team on record.

Which city has the most renewable energy tech companies?

New York leads with 89 headquartered companies, followed by Houston (79) and Austin (60).

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 30,703 verified decision-maker contacts tracked across these 60 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 17, 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.