Company lists · Data refreshed September 2026

Top 25 Solar software companies based in the United States

RevenueBase identified 4,050 company matches for solar software companies associated with the United States as of September 2026 and tracks 95,211 professional contacts across them, including 31,495 with verified work emails. San Diego is the largest hub.

This list covers company matches for solar software companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
4,050Companies
95,211Contacts tracked
31,495Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest solar software companies based in the United States

Ranked by team size
Top 25 of 4,050 company matches for solar software companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchSan Francisco, CA, United StatesHQ recorded Sep 21, 202610001+7,974 contacts →

Exact match

“Life runs on clean energy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchTempe, AZ, United StatesHQ recorded Sep 21, 20265,001-10,0005,581 contacts →

Exact match

“First Solar, Inc.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchFremont, CA, United StatesHQ recorded Sep 21, 20261,001-5,0003,130 contacts →

Exact match

“Enphase Energy is a global energy technology company and the world’s leading supplier of microinverter-based solar and battery systems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchRichmond, CA, United StatesHQ recorded Sep 21, 20261,001-5,0002,675 contacts →

Exact match

“We believe clean energy and backup storage should be accessible to everybody.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchArlington, VA, United StatesHQ recorded Sep 21, 20261,001-5,0001,863 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchTemecula, CA, United StatesHQ recorded Sep 21, 20261,001-5,0001,830 contacts →

Exact match

“Freedom Forever is a residential solar installation company that partners with solar sales companies in the industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchWall Township, NJ, United StatesHQ recorded Sep 21, 20261,001-5,0001,794 contacts →

Exact match

“Trinity Solar is one of the largest privately held residential solar companies in the nation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchSan Ramon, CA, United StatesHQ recorded Sep 21, 20261,001-5,0001,763 contacts →

Exact match

“At GE Digital, our focus is clear: delivering software that accelerates a new era of energy.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchOrem, UT, United StatesHQ recorded Sep 21, 20261,001-5,0001,168 contacts →

Exact match

“Blue Raven Solar, a SunPower Company, is a retailer of residential home solar systems.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchRoseville, CA, United StatesHQ recorded Sep 21, 2026501-1,0001,143 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchIrvine, CA, United StatesHQ recorded Sep 21, 2026501-1,000954 contacts →

Exact match

“Qcells is a renowned complete energy solutions provider in solar cell and module, energy storage, downstream project business and energy retail.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchFremont, CA, United StatesHQ recorded Sep 21, 2026501-1,000944 contacts →

Exact match

“Since day one, Nextracker’s mission has been to transition the world to affordable, renewable power, by developing the highest-performing and resilient solar tracking technologies…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchProvo, UT, United StatesHQ recorded Sep 21, 2026501-1,000912 contacts →

Exact match

“Ion Solar is a premium, full-service solar provider.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchLehi, UT, United StatesHQ recorded Sep 21, 20265,001-10,000719 contacts →

Exact match

“We’re on a mission to make power personal.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchScottsdale, AZ, United StatesHQ recorded Sep 21, 20261,001-5,000624 contacts →

Exact match

“DEPCOM Power, a Koch Engineered Solutions Company, is a leading solar energy solutions partner providing Development Support, Engineering, Procurement & Construction (EPC)…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchBoston, MA, United StatesHQ recorded Sep 21, 2026201-500607 contacts →

Exact match

“Nexamp is leading the transformation to the new energy economy with proven solutions for the deployment and operation of solar energy assets.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchSan Diego, CA, United StatesHQ recorded Sep 21, 20261,001-5,000595 contacts →

Exact match

“As Greentech Renewables, we prioritize our commitment to providing customers with exceptional service and top-tier products from prominent renewable energy manufacturers.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchCharlotte, NC, United StatesHQ recorded Sep 21, 2026201-500539 contacts →

Exact match

“Palmetto is a leading clean tech company on a mission to accelerate the transition to a clean energy future.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSt. Rose, LA, United StatesHQ recorded Sep 21, 2026501-1,000507 contacts →

Exact match

“PosiGen is the nation's leading residential solar and energy efficiency provider.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchWaltham, MA, United StatesHQ recorded Sep 21, 2026501-1,000494 contacts →

Exact match

“Power Factors delivers renewable energy asset management software for global portfolios.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchChandler, AZ, United StatesHQ recorded Sep 21, 202651-200484 contacts →

Exact match

“The future of Solar Sales”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchSan Luis Obispo, CA, United StatesHQ recorded Sep 21, 2026n/a471 contacts →

Exact match

“Founded in 1997, REC Solar has emerged as a leader in the solar industry, installing 800+ solar and storage solutions for commercial and public sector customers nationwide.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchSanta Ana, CA, United StatesHQ recorded Sep 21, 20261,001-5,000459 contacts →

Exact match

“EnergyAid acquired Titan Solar Power's intellectual property (IP) in March of 2025 through bankruptcy court.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchStamford, CT, United StatesHQ recorded Sep 21, 2026201-500457 contacts →

Exact match

“As of January 30th, 2023, ReneSola Power Ltd has rebranded to become Emeren Group Ltd (NYSE: SOL).”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchSandy, UT, United StatesHQ recorded Sep 21, 2026201-500422 contacts →

Exact match

“We don’t settle at Sunder, so you can expect exceptional service from start to finish in your switch to solar.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 4,050 solar software companies based in the United States

See the full list, filter by size, metro and specialty, and access 31,495 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Solar software companies based in the United States at a glance

As of Sep 21, 2026
33.1%Verified-email coverage
23.5Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · San Diego
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
1,626
11-50
1,646
51-200
556
201-500
112
501-1,000
46
1,001-5,000
35
5,001-10,000
10
10001+
7

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 4,050 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “solar software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 31,495 professional contacts with verified work emails across the full matched dataset. 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 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “solar software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar software companies are there based in the United States?

RevenueBase identified 4,050 company matches for solar software companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Sunrun tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most solar software companies?

San Diego leads with 84 company records, followed by Austin (69) and Houston (66).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 31,495 professional contacts with verified work emails tracked across these 4,050 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

Ready to reach these companies? Verified emails and direct dials for all 4,050 solar software companies based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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 SmartSearch, 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.