Company lists · Data refreshed September 2026
Top 25 Solar permitting services based in the United States
RevenueBase identified 1,188 solar permitting services headquartered in the United States as of September 2026 and tracks 12,152 professional contacts across them, including 3,090 with verified work emails. Houston is the largest hub.
This list covers solar permitting services 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 September 18, 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 solar permitting services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 912 contacts → | ||||
Partial evidence “Ion Solar is a premium, full-service solar provider.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 379 contacts → | ||||
Indirect evidence “Established in 2019.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 3 | 275 contacts → | ||||
Indirect evidence “People.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 259 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 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 207 contacts → | ||||
Partial evidence “Wolf River Electric is a leading electrical and solar installation company established in 2014.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 182 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 Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 165 contacts → | ||||
Partial evidence “All Energy Solar is a trusted leader in the solar energy industry.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 157 contacts → | ||||
Partial evidence “Founded in 1998, Solar Technologies has installed more than solar panels and helped thousands of Bay Area home and business owners save money with solar.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 9 | 146 contacts → | ||||
Partial evidence “Solgen Power provides an excellent Solar experience for homeowners in Washington State, Oregon, Idaho, Ohio, Kentucky, Indiana, Arizona, and Texas.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 145 contacts → | ||||
Partial evidence “Even though it’s been decades since its invention, there’s still a lot of misinformation surrounding solar energy.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 11 | 130 contacts → | ||||
Partial evidence “Encōr Solar was founded in 2016.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 105 contacts → | ||||
Indirect evidence “SolarMax Technology, Inc.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 99 contacts → | ||||
Partial evidence “Earthlight is a Solar and Energy Efficiency contractor dedicated to meeting people’s ecofriendly needs by providing them with quality energy conservation solutions.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 97 contacts → | ||||
Partial evidence “Cal Solar Inc.(California Solar Integrators, Inc.) specializes in the design and construction of Solar PV (Electric),Solar Water Heating, Battery Storage, and EV Charging systems…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 90 contacts → | ||||
Partial evidence “Introducing Current Home, a premier solar company at the forefront of the renewable energy revolution.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 75 contacts → | ||||
Indirect evidence “Take advantage of Arizona's most abundant natural resource-more than 320 days of sunshine per year-and enjoy savings on your electric bill for decades to come.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 73 contacts → | ||||
Partial evidence “With twenty years of experience, we simplify solar solutions for residential, commercial, and industrial customers.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 18 | 69 contacts → | ||||
Partial evidence “Freedom Forever is one of America's fastest-growing residential solar power companies, providing custom rooftop solar power systems for homeowners across the US.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 69 contacts → | ||||
Strong evidence “Altna Energy provides services to the Solar Industry including design, permitting and other back office services.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 68 contacts → | ||||
Partial evidence “Stellar Solar is a San Diego based solar company that has been voted the best solar company in San Diego in 2011, 2013, 2014, 2015, 2017, 2018, 2019 and 2020 by the readers of the…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 65 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 58 contacts → | ||||
Partial evidence “At Photon Brothers, our mission is to power your life through a quality solar installation at a reasonable price.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 58 contacts → | ||||
Indirect evidence “Green Power Energy has been in operation since 2009, serving thousands of homes and businesses across the Northeast.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 55 contacts → | ||||
Partial evidence “Arch Solar is a full-service solar contractor based in Plymouth, WI.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 55 contacts → | ||||
Partial evidence “Amp x Titanium is one of the leading companies in the solar industry, helping team members develop into successful individuals.” Source: RevenueBase Database · checked Sep 18, 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: solar permitting services. 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 solar permitting services.
- Partial evidence
- Its own public description names part of solar permitting services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name solar permitting services. 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 1,188 solar permitting services based in the United States
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Solar permitting services based in the United States at a glance
As of Sep 18, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 1,188 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 solar permitting services, 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 “solar permitting services”. 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 solar permitting services), 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 solar permitting services, 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, 3,090 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 18, 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 solar permitting services, 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 solar permitting services are there based in the United States?
RevenueBase identified 1,188 solar permitting services headquartered in the 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?
ION Solar, headquartered in Provo, tops this list with the largest team on record.
Which city has the most solar permitting services?
Houston leads with 22 headquartered companies, followed by San Diego (19) and Los Angeles (18).
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 3,090 verified decision-maker contacts tracked across these 1,188 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 18, 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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