Company lists · Data refreshed September 2026

Top 25 Solar site assessment firms based in the United States

RevenueBase identified 1,627 company matches for solar site assessment firms associated with the United States as of September 2026 and tracks 19,397 professional contacts across them, including 5,834 with verified work emails. San Diego is the largest hub.

This list covers company matches for solar site assessment firms 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 18, 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 18, 2026 How this list was built
1,627Companies
19,397Contacts tracked
5,834Verified emails
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The 25 largest solar site assessment firms based in the United States

Ranked by team size
Top 25 of 1,627 company matches for solar site assessment firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 18, 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 matchProvo, UT, United StatesHQ recorded Sep 18, 2026501-1,000912 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
2Exact matchScottsdale, AZ, United StatesHQ recorded Sep 18, 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 18, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Sep 18, 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 18, 2026 · View company records in RevenueBase
4Exact matchDenver, United StatesHQ recorded Sep 18, 2026501-1,000379 contacts →

Exact match

“Established in 2019.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
5Exact matchPhoenix, AZ, United StatesHQ recorded Sep 18, 2026201-500351 contacts →

Exact match

“https://ourworldenergy.com/”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
6Exact matchAustin, TX, United StatesHQ recorded Sep 18, 2026501-1,000259 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
7Exact matchLincoln, CA, United StatesHQ recorded Sep 18, 2026501-1,000222 contacts →

Exact match

“Even though it’s been decades since its invention, there’s still a lot of misinformation surrounding solar energy.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
8Exact matchSt. Paul, MN, United StatesHQ recorded Sep 18, 2026201-500218 contacts →

Exact match

“Novel Energy delivers solar energy solutions helping provide sustainable options to meet evolving energy needs.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
9Exact matchPlano, TX, United StatesHQ recorded Sep 18, 2026201-500189 contacts →

Exact match

“Excellence and value engineering build into every design.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Sep 18, 202651-200186 contacts →

Exact match

“Spruce Power is one of the largest owner-operators of residential solar portfolios in the US.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
11Exact matchBrooklyn, MD, United StatesHQ recorded Sep 18, 2026201-500182 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
12Exact matchSt. Paul, MN, United StatesHQ recorded Sep 18, 202651-200165 contacts →

Exact match

“All Energy Solar is a trusted leader in the solar energy industry.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
13Exact matchLongmont, CO, United StatesHQ recorded Sep 18, 202651-200163 contacts →

Exact match

“We help you capture the benefits of clean solar energy.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
14Exact matchSan Ramon, CA, United StatesHQ recorded Sep 18, 202651-200157 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
15Exact matchManteca, CA, United StatesHQ recorded Sep 18, 2026201-500153 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
16Exact matchDurham, NC, United StatesHQ recorded Sep 18, 2026201-500142 contacts →

Exact match

“Mill Creek Renewables (MCR) is a full-service Engineering, Procurement, Construction (EPC) and repowering firm for solar energy facilities within the United States.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
17Exact matchLehi, UT, United StatesHQ recorded Sep 18, 202651-200130 contacts →

Exact match

“Encōr Solar was founded in 2016.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
18Exact matchHinesburg, VT, United StatesHQ recorded Sep 18, 202651-200120 contacts →

Exact match

“NRG Systems is the global leader in wind and solar resource measurement and intelligence.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
19Exact matchSand City, CA, United StatesHQ recorded Sep 18, 202651-200116 contacts →

Exact match

“GroundWork Renewables is the leading provider of high-quality meteorological (MET) data and ISO-accredited PV lab testing to give solar plant owners complete situational awareness…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
20Exact matchRiverside, CA, United StatesHQ recorded Sep 18, 2026201-500105 contacts →

Exact match

“SolarMax Technology, Inc.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
21Exact matchCharlotte, NC, United StatesHQ recorded Sep 18, 202651-20093 contacts →

Exact match

“Renu Energy Solutions provides high-quality solar installations, as well as proven energy-saving products and services like energy storage and system monitoring.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
22Exact matchHemet, CA, United StatesHQ recorded Sep 18, 2026201-50090 contacts →

Exact match

“Introducing Current Home, a premier solar company at the forefront of the renewable energy revolution.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
23Exact matchCampbell, CA, United StatesHQ recorded Sep 18, 202651-20089 contacts →

Exact match

“SenseHawk is transforming the way solar plants are built, commissioned, and operated with advanced digital solutions.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
24Exact matchWoods Cross, UT, United StatesHQ recorded Sep 18, 202651-20089 contacts →

Exact match

“1Solar is a full-service solar electric contractor and solar EPC with service areas in Utah, Colorado, Idaho, and Nevada.”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase
25Exact matchNew York, NY, United StatesHQ recorded Sep 18, 202651-20085 contacts →

Exact match

“Euclid Power is comprised of a team of industry-leading veterans within renewable energy project development, diligence, finance, and execution with over 10GW of PV and 5GWh of…”

Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase

Showing 25 of 1,627 solar site assessment firms based in the United States

See the full list, filter by size, metro and specialty, and access 5,834 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar site assessment firms based in the United States at a glance

As of Sep 18, 2026
30.1%Verified-email coverage
11.9Average contacts per company
11-50Median size (employees)
1.7%Largest-city concentration · San Diego
Sep 18, 2026Page data refreshed

Companies by employee count

1-10
719
11-50
654
51-200
189
201-500
38
501-1,000
11
1,001-5,000
6
5,001-10,000
1
10001+
1

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 1,627 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 site assessment firms” 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 5,834 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 18, 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 site assessment firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar site assessment firms are there based in the United States?

RevenueBase identified 1,627 company matches for solar site assessment firms 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?

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

Which city has the most solar site assessment firms?

San Diego leads with 28 company records, followed by Houston (27) and Los Angeles (25).

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 5,834 professional contacts with verified work emails tracked across these 1,627 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 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,627 solar site assessment firms based in the United States. Start with a free account, no credit card.

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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 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.