Company lists · Data refreshed September 2026

Top 11 Off grid solar system providers based in Austin, United States

RevenueBase identified 29 off grid solar system providers headquartered in Austin, United States as of September 2026 and tracks 645 professional contacts across them, including 212 with verified work emails. San Diego is the largest hub.

This list covers off grid solar system providers 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
29Companies
645Contacts tracked
212Verified emails
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The 11 largest off grid solar system providers based in Austin, United States

Ranked by team size
Top 11 of 29 off grid solar system providers 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 off grid solar system providers: 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 evidenceAustin, TX, United StatesHQ checked Sep 17, 2026501-1,000259 contacts →

Partial 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 17, 2026
2Partial evidenceAustin, TX, United StatesHQ checked Sep 17, 202651-20095 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
3Indirect evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-5041 contacts →

Indirect evidence

“Our vision is to empower and enlighten residential and commercial customers in Texas.”

Source: RevenueBase Database · checked Sep 17, 2026
4Partial evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-5031 contacts →

Partial evidence

“APsystems is the #1 global multi-platform MLPE solution provider, offering microinverter, energy storage and rapid shutdown devices for the solar PV industry.”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-5024 contacts →

Indirect evidence

“At HOLT Renewables, we’re the driving force behind commercial renewable energy projects nationwide.”

Source: RevenueBase Database · checked Sep 17, 2026
6Partial evidenceAustin, TX, United StatesHQ checked Sep 17, 202651-20014 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
7Partial evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-5010 contacts →

Partial 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
8Indirect evidenceAustin, TX, United StatesHQ checked Sep 17, 202611-505 contacts →

Indirect evidence

“Local leader in EV charging and sustainable energy solutions.”

Source: RevenueBase Database · checked Sep 17, 2026
9Strong evidenceAustin, United StatesHQ checked Sep 17, 20261-105 contacts →

Strong evidence

“DKD Energy will design your solar panel system based on your average energy bills, the amount of sunlight your property gets, and your budget.”

Source: RevenueBase Database · checked Sep 17, 2026
10Strong evidenceAustin, TX, United StatesHQ checked Sep 17, 20261-104 contacts →

Strong evidence

“Commercial Solar: We design and construct solar energy systems for building owners.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceAustin, United StatesHQ checked Sep 17, 20261-101 contacts →

Partial evidence

“We are an energy efficiency company specializing in comprehensive solutions for solar energy, roofing, and batteries.”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 11 of 29 off grid solar system providers based in Austin, United States

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Off grid solar system providers based in Austin, United States at a glance

As of Sep 17, 2026
32.9%Verified-email coverage
22.2Average contacts per company
11-50Median size (employees)
148.3%Largest-city concentration · San Diego
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
12
51-200
4
501-1,000
2

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 29 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 off grid solar system providers, 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 “off grid solar system providers”. 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 off grid solar system providers), 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 off grid solar system providers, 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, 212 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.

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 off grid solar system providers, 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 off grid solar system providers are there based in Austin, United States?

RevenueBase identified 29 off grid solar system providers 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?

Freedom Solar Power, headquartered in Austin, tops this list with the largest team on record.

Which city has the most off grid solar system providers?

San Diego leads with 43 headquartered companies, followed by Houston (40) and Los Angeles (31).

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 212 verified decision-maker contacts tracked across these 29 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.