Company lists · Data refreshed November 2026

Top 25 Solar radiation testing services worldwide

RevenueBase identified 166 company matches for solar radiation testing services worldwide as of November 2026 and tracks 1,305 professional contacts across them, including 348 with verified work emails. The United States is the largest market and Denver the largest hub.

This list covers company matches for solar radiation testing services worldwide, 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 November 1, 2026. Country and city lists for solar radiation testing services follow the table.

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 Nov 1, 2026 How this list was built
166Companies
1,305Contacts tracked
348Verified emails
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The 25 largest solar radiation testing services worldwide

Ranked by team size
Top 25 of 166 company matches for solar radiation testing services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 1, 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 matchThe Hague, NetherlandsHQ recorded Nov 1, 2026n/a175 contacts →

Exact match

“Eternal Sun B.V.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
2Exact matchSand City, CA, United StatesHQ recorded Nov 1, 202651-200120 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 · Nov 1, 2026 · View company records in RevenueBase
3Exact matchBerlin, GermanyHQ recorded Nov 1, 202651-20083 contacts →

Exact match

“Kiwa PI Berlin | Independent Experts in Photovoltaics At Kiwa PI Berlin, we specialize in providing independent, customer-focused support for solar energy projects-from the…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
4Exact matchDelft, NetherlandsHQ recorded Nov 1, 2026201-50077 contacts →

Exact match

“For over a century, Kipp & Zonen has enabled trusted, intelligent decisions by transforming environmental measurements into decision‑ready intelligence.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
5Exact matchThe Hague, NetherlandsHQ recorded Nov 1, 202611-5054 contacts →

Exact match

“We build high-end simulators that simulate sunlight.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
6Exact matchBrazilHQ recorded Nov 1, 202651-20028 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
7Exact matchDavos Dorf, SwitzerlandHQ recorded Nov 1, 202651-20027 contacts →

Exact match

“PMOD/WRC serves as an international calibration center for meteorological radiation instruments.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
8Exact matchNeuchâtel, SwitzerlandHQ recorded Nov 1, 202651-20026 contacts →

Exact match

“About us Pasan is the world reference for measurement equipment in the photovoltaic cell and module manufacturing business.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
9Exact matchAhrensburg, GermanyHQ recorded Nov 1, 202611-5022 contacts →

Exact match

“MBJ Solutions GmbH specializes in the development and sales of test and measurement systems for the photovoltaic industry.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Nov 1, 202611-5021 contacts →

Exact match

“We are in the business of test and measurement solutions with an expertise in radiation measurements.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
11Exact matchStellenbosch, South AfricaHQ recorded Nov 1, 202611-5020 contacts →

Exact match

“GeoSUN offers a variety of services relating to the utility scale solar energy industry.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
12Exact matchFremont, CA, United StatesHQ recorded Nov 1, 202651-20019 contacts →

Exact match

“RETC is an independent testing and certification laboratory specializing in solar and energy storage products.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
13Exact matchPune, IndiaHQ recorded Nov 1, 202611-5017 contacts →

Exact match

“Sustainfy Energy which has been pioneering in the testing and inspection activities of the Solar PV industry for more than 6 years and till date working with 3.2 GW+ solar power…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
14Exact matchSaket, IndiaHQ recorded Nov 1, 202611-5014 contacts →

Exact match

“Registered as Fototentia Diagnostics Private Limited PV Diagnostics provides onsite diagnostics services to solar power plants, along with quality control of modules during…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
15Exact matchGlenside, PA, United StatesHQ recorded Nov 1, 202611-5014 contacts →

Exact match

“Since inventing the world’s first Solar Simulator in 1967, Solar Light Company, LLC has been a global leader in laboratory-grade light science instrumentation and testing…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
16Exact matchBursa, TürkiyeHQ recorded Nov 1, 202611-5014 contacts →

Exact match

“2016 Yılında kurulan SUSOL, Lisanslı / Lisanssız Güneş Enerji Santrallerine İşveren Mühendisliği, Denetim ve Muayene hizmeti vermektedir.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
17Exact matchHuntsville, AL, United StatesHQ recorded Nov 1, 20261-1012 contacts →

Exact match

“Your One-Stop Radiation Effects Data Solution for Space Electronics.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
18Exact matchChelmsford, MA, United StatesHQ recorded Nov 1, 202651-20011 contacts →

Exact match

“VPT Radiation Laboratory and Test Services (VPT Rad®) is an Independent, DLA Approved Radiation and Test Services Laboratory Offering- Turnkey, Integrated Radiation Effects Test…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
19Exact matchOrlando, FL, United StatesHQ recorded Nov 1, 202611-5011 contacts →

Exact match

“Optronic Laboratories, LLC designs and manufactures high performance, optical radiation measurement systems, sphere sources, and calibration standards and services that improve…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
20Exact matchEspoo, FinlandHQ recorded Nov 1, 202611-5011 contacts →

Exact match

“Endeas Oy, based in Finland, has delivered over 600 QuickSun solar simulator for PV testings since 2001.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
21Exact matchSebastopol, CA, UkraineHQ recorded Nov 1, 202611-5010 contacts →

Exact match

“Solmetric test and measurement solutions help solar installation companies deliver better solar energy and better business results.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
22Exact matchTrujillo, SpainHQ recorded Nov 1, 202611-509 contacts →

Exact match

“Te ayudamos a maximizar el rendimiento de tu portfolio monitoreando su salud y controlando la degradación de tus módulos y su evolución (gracias a la termografía)”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
23Exact matchSouth San Francisco, CA, United StatesHQ recorded Nov 1, 20261-108 contacts →

Exact match

“At Amplify Energy, we evaluate and improve the quality and performance of solar power generation facilities in order to maximize financial returns for system owners, buyers, and…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
24Exact matchSart-dames-avelines, BelgiumHQ recorded Nov 1, 20261-108 contacts →

Exact match

“LuciSun provides specialized services to the solar energy sector.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
25Exact matchAhmedabad, IndiaHQ recorded Nov 1, 2026201-5008 contacts →

Exact match

“Monitoring, Solar Power Forecast, Weather Data, EPC are some added services from our group.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase

Showing 25 of 166 solar radiation testing services worldwide

See the full list, filter by size, metro and specialty, and access 348 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Solar radiation testing services worldwide at a glance

As of Nov 1, 2026
26.7%Verified-email coverage
7.9Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Denver
Nov 1, 2026Page data refreshed

Companies by employee count

1-10
102
11-50
46
51-200
15
201-500
2

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for solar radiation testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “solar radiation testing services” 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. 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 348 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 November 1, 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.

Solar radiation testing services by location

1 lists · largest first

Every Solar radiation testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 radiation testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many solar radiation testing services are there worldwide?

RevenueBase identified 166 company matches for solar radiation testing services worldwide as of November 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?

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

Which country has the most solar radiation testing services?

The United States leads with 29 companies. Every solar radiation testing services list by country and city is linked on this page.

Which city has the most solar radiation testing services?

Denver leads with 2 company records, followed by Dubai (2) and Geretsried (2).

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 348 professional contacts with verified work emails tracked across these 166 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 November 1, 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 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.