Company lists · Data refreshed September 2026
Top 25 Solar testing and certification labs based in the United States
RevenueBase identified 56 company matches for solar testing and certification labs associated with the United States as of September 2026 and tracks 1,189 professional contacts across them, including 485 with verified work emails. Phoenix is the largest hub.
This list covers company matches for solar testing and certification labs 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.
The 25 largest solar testing and certification labs based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 442 contacts → | ||||
Exact match “SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 2 | 180 contacts → | ||||
Exact match “Eurofins Electrical & Electronics North America is a leading testing and certification laboratory, providing a unique array of testing services and accreditations for regulatory…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 3 | 116 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 | |||||
| 4 | 46 contacts → | ||||
Exact match “Kiwa PVEL is the leading reliability and performance testing lab for downstream solar project developers, financiers, and asset owners around the world.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 5 | 41 contacts → | ||||
Exact match “Wyssling Consulting is the #1 Residential Solar Engineering company in the industry.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 6 | 37 contacts → | ||||
Exact match “Applus Keystone+ specializes in streamlining the burden of regulatory compliance testing.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 7 | 30 contacts → | ||||
Exact match “Starting in January of 2022, PTI becomes a part of the Nemko Group.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 8 | 19 contacts → | ||||
Exact match “As an independent, accredited, third-party test laboratory, Molimo is dedicated to providing clients with a high quality testing experience, complete with the fast and accurate…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 9 | 18 contacts → | ||||
Exact match “Sapphire Technical Solutions is an ISO-17025 accredited photometric, radiometric and power efficiency testing laboratory as well as an equipment manufacturer.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 10 | 16 contacts → | ||||
Exact match “NCEE Labs, founded in 1998, provides FCC, CE, and worldwide EMC/wireless testing, Product Safety, Reliability, and X-Ray testing, as well as wireless certification to large and…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 11 | 15 contacts → | ||||
Exact match “Keystone was founded as a National Fenestration Rating Council (NFRC) licensed Inspection Agency in 1998 by Former President, Marcia Falke, building on her more than 25 years…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 12 | 14 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 · Sep 18, 2026 · View company records in RevenueBase | |||||
| 13 | 14 contacts → | ||||
Exact match “RETC is an independent testing and certification laboratory specializing in solar and energy storage products.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 14 | 12 contacts → | ||||
Exact match “PV Letters provides structural certification letters for solar installers in the United States.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 15 | 12 contacts → | ||||
Exact match “At Print Pro AZ, we are at the forefront of innovation in the solar labeling industry.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 16 | 8 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 · Sep 18, 2026 · View company records in RevenueBase | |||||
| 17 | 8 contacts → | ||||
Exact match “ESTEC Solutions provides Equipment Safety Testing, Evaluation and Consultation Solutions to Semiconductor, Flat Panel Display and Solar Panel Equipment Manufacturers.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 18 | 7 contacts → | ||||
Exact match “Peace of Mind, Investment Protection, Performance Assurance Ethical Third-Party Verification that Builds Trust: Think of us as an independent advocate for solar customers that…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “Angstrom Designs is a diverse group of engineers who focus on systems design for automated instrumentation, control, test and measurement.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match “Lab Certifications and TAB Testing: BalCon is an industry leader who has been ensuring equipment efficiency and safety for over 25 years.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “Independent NVLAP Accredited Testing Laboratories for LM-79, ISTM (In-Situ), Photometrics (Photometry & IES Files), colorimetry and Electrical Measurements.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “Electrical Services For Today’s Changing Technologies” Integrated Power & Lighting, Inc.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “Photo Emission Technology offers a variety of turn-key electronic systems for Solar Cell Testing to help improve efficiency for commercial solar cells.” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 24 | 2 contacts → | ||||
Exact match “Your Partner in Quality Photometrics LightLab International Allentown, LLC is an ISO-Accredited laboratory specializing in personalized, highly accurate measurements of lighting…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
| 25 | 2 contacts → | ||||
Exact match “RE Innovations LLC was imagined and created in April 2019 by Joseph M Spossey with the simple goal of providing innovative product development, design, testing and certification…” Recorded in the RevenueBase company graph · Sep 18, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “solar testing and certification labs”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 56 solar testing and certification labs based in the United States
See the full list, filter by size, metro and specialty, and access 485 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Solar testing and certification labs 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 56 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 testing and certification labs” 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 485 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 testing and certification labs”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many solar testing and certification labs are there based in the United States?
RevenueBase identified 56 company matches for solar testing and certification labs 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?
SPL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most solar testing and certification labs?
Phoenix leads with 3 company records, followed by Austin (2) and Buford (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 485 professional contacts with verified work emails tracked across these 56 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 56 solar testing and certification labs based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Solar testing and certification labs by geography
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Solar testing and certification labs based in Germany
- Solar testing and certification labs based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 solar testing and certification labs based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 56 matching company records for solar testing and certification labs based in the United States, with 1,189 tracked contacts and 485 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 18, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 solar testing and certification labs based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | SPLspllabs.com HQ: Houston, United StatesReported employees: 501-1,000 | Houston, United States | 501-1,000 | Exact match | 442 contacts → |
“SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Baltimore, MD, United StatesReported employees: 201-500 | Baltimore, MD, United States | 201-500 | Exact match | 180 contacts → |
“Eurofins Electrical & Electronics North America is a leading testing and certification laboratory, providing a unique array of testing services and accreditations for regulatory…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Groundwork Renewablesgrndwork.comHQ: Sand City, CA, United StatesReported employees: 51-200 | Sand City, CA, United States | 51-200 | Exact match | 116 contacts → |
“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 description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Kiwa Pvelkiwa.comHQ: Napa, CA, United StatesReported employees: 11-50 | Napa, CA, United States | 11-50 | Exact match | 46 contacts → |
“Kiwa PVEL is the leading reliability and performance testing lab for downstream solar project developers, financiers, and asset owners around the world.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Wyssling Consulting, LLCwysslingconsulting.com HQ: Alpine, UT, United StatesReported employees: 11-50 | Alpine, UT, United States | 11-50 | Exact match | 41 contacts → |
“Wyssling Consulting is the #1 Residential Solar Engineering company in the industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Applus Keystonekeystonecompliance.com HQ: New Castle, PA, United StatesReported employees: 11-50 | New Castle, PA, United States | 11-50 | Exact match | 37 contacts → |
“Applus Keystone+ specializes in streamlining the burden of regulatory compliance testing.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Nemko USA - Austinnemko.comHQ: Round Rock, TX, United StatesReported employees: 11-50 | Round Rock, TX, United States | 11-50 | Exact match | 30 contacts → |
“Starting in January of 2022, PTI becomes a part of the Nemko Group.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Molimo, LLCmolimo.com HQ: York, PA, United StatesReported employees: 51-200 | York, PA, United States | 51-200 | Exact match | 19 contacts → |
“As an independent, accredited, third-party test laboratory, Molimo is dedicated to providing clients with a high quality testing experience, complete with the fast and accurate…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sapphire Technical Solutionssapphirests.com HQ: Pineville, NC, United StatesReported employees: 11-50 | Pineville, NC, United States | 11-50 | Exact match | 18 contacts → |
“Sapphire Technical Solutions is an ISO-17025 accredited photometric, radiometric and power efficiency testing laboratory as well as an equipment manufacturer.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ncee Labsnceelabs.com HQ: Lincoln, NE, United StatesReported employees: 11-50 | Lincoln, NE, United States | 11-50 | Exact match | 16 contacts → |
“NCEE Labs, founded in 1998, provides FCC, CE, and worldwide EMC/wireless testing, Product Safety, Reliability, and X-Ray testing, as well as wireless certification to large and…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Keystone Certifications INCkeystonecerts.com HQ: New Cumberland, PA, United StatesReported employees: 11-50 | New Cumberland, PA, United States | 11-50 | Exact match | 15 contacts → |
“Keystone was founded as a National Fenestration Rating Council (NFRC) licensed Inspection Agency in 1998 by Former President, Marcia Falke, building on her more than 25 years…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Solar Light Company, LLCsolarlight.com HQ: Glenside, PA, United StatesReported employees: 11-50 | Glenside, PA, United States | 11-50 | Exact match | 14 contacts → |
“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 description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Retc, Part Of The VDE Groupretc-ca.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 14 contacts → |
“RETC is an independent testing and certification laboratory specializing in solar and energy storage products.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | PV Letterspvletters.com HQ: Remote, United StatesReported employees: 1-10 | Remote, United States | 1-10 | Exact match | 12 contacts → |
“PV Letters provides structural certification letters for solar installers in the United States.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Printproazprintproaz.com HQ: Phoenix, AZ, United StatesReported employees: 11-50 | Phoenix, AZ, United States | 11-50 | Exact match | 12 contacts → |
“At Print Pro AZ, we are at the forefront of innovation in the solar labeling industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Amplify Energyamplifyenergy.comHQ: South San Francisco, CA, United StatesReported employees: 1-10 | South San Francisco, CA, United States | 1-10 | Exact match | 8 contacts → |
“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 description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Estec Solutions, INCestecsolutions.com HQ: Austin, TX, United StatesReported employees: 1-10 | Austin, TX, United States | 1-10 | Exact match | 8 contacts → |
“ESTEC Solutions provides Equipment Safety Testing, Evaluation and Consultation Solutions to Semiconductor, Flat Panel Display and Solar Panel Equipment Manufacturers.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Veriwattveriwatt.com HQ: Springfield, MO, United StatesReported employees: 1-10 | Springfield, MO, United States | 1-10 | Exact match | 7 contacts → |
“Peace of Mind, Investment Protection, Performance Assurance Ethical Third-Party Verification that Builds Trust: Think of us as an independent advocate for solar customers that…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Angstrom Designsangstromdesigns.comHQ: Santa Barbara, United StatesReported employees: 1-10 | Santa Barbara, United States | 1-10 | Exact match | 6 contacts → |
“Angstrom Designs is a diverse group of engineers who focus on systems design for automated instrumentation, control, test and measurement.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Balconbalcontab.com HQ: Council Bluffs, IA, United StatesReported employees: 11-50 | Council Bluffs, IA, United States | 11-50 | Exact match | 6 contacts → |
“Lab Certifications and TAB Testing: BalCon is an industry leader who has been ensuring equipment efficiency and safety for over 25 years.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Lightlab Internationallightlabint.com HQ: Phoenix, AZ, United StatesReported employees: 11-50 | Phoenix, AZ, United States | 11-50 | Exact match | 3 contacts → |
“Independent NVLAP Accredited Testing Laboratories for LM-79, ISTM (In-Situ), Photometrics (Photometry & IES Files), colorimetry and Electrical Measurements.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Integrated Power & Lighting, INCipltitle24.com HQ: Corona, CA, United StatesReported employees: 11-50 | Corona, CA, United States | 11-50 | Exact match | 3 contacts → |
“Electrical Services For Today’s Changing Technologies” Integrated Power & Lighting, Inc.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Photo Emission Technology, INCphotoemission.com HQ: Moorpark, CA, United StatesReported employees: 1-10 | Moorpark, CA, United States | 1-10 | Exact match | 3 contacts → |
“Photo Emission Technology offers a variety of turn-key electronic systems for Solar Cell Testing to help improve efficiency for commercial solar cells.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Lightlab International Allentown, LLClightlaballentown.com HQ: Allentown, PA, United StatesReported employees: 1-10 | Allentown, PA, United States | 1-10 | Exact match | 2 contacts → |
“Your Partner in Quality Photometrics LightLab International Allentown, LLC is an ISO-Accredited laboratory specializing in personalized, highly accurate measurements of lighting…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Reinnovationsreinnovationsllc.com HQ: Lawrenceville, GA, United StatesReported employees: 1-10 | Lawrenceville, GA, United States | 1-10 | Exact match | 2 contacts → |
“RE Innovations LLC was imagined and created in April 2019 by Joseph M Spossey with the simple goal of providing innovative product development, design, testing and certification…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 56 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Solar testing and certification labs: dataset insights
September 18, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
56 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 56 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 18, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for solar testing and certification labs?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many solar testing and certification labs did RevenueBase find based in the United States?
The saved snapshot records 56 matching company records, 1,189 tracked contacts and 485 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 18, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Solar testing and certification labs by geography
Cite this list
RevenueBase Data Team. Top 25 solar testing and certification labs based in the United States. Snapshot: September 18, 2026. https://revenuebase.ai/companies/solar-testing-and-certification-labs/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Solar testing and certification labs based in Germany
- Solar testing and certification labs based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
Company intelligence · public preview
Top 25 solar testing and certification labs based in the United States
RevenueBase records 56 matching company records for solar testing and certification labs based in the United States, with 1,189 tracked contacts and 485 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 18, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 solar testing and certification labs based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | SPLspllabs.com HQ: Houston, United StatesReported employees: 501-1,000 | Houston, United States | 501-1,000 | Exact match | 442 contacts → |
“SPL is a leading provider of compliance and testing services for Environmental, Energy, and other end markets.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | HQ: Baltimore, MD, United StatesReported employees: 201-500 | Baltimore, MD, United States | 201-500 | Exact match | 180 contacts → |
“Eurofins Electrical & Electronics North America is a leading testing and certification laboratory, providing a unique array of testing services and accreditations for regulatory…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Groundwork Renewablesgrndwork.com HQ: Sand City, CA, United StatesReported employees: 51-200 | Sand City, CA, United States | 51-200 | Exact match | 116 contacts → |
“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 description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Kiwa Pvelkiwa.com HQ: Napa, CA, United StatesReported employees: 11-50 | Napa, CA, United States | 11-50 | Exact match | 46 contacts → |
“Kiwa PVEL is the leading reliability and performance testing lab for downstream solar project developers, financiers, and asset owners around the world.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Wyssling Consulting, LLCwysslingconsulting.com HQ: Alpine, UT, United StatesReported employees: 11-50 | Alpine, UT, United States | 11-50 | Exact match | 41 contacts → |
“Wyssling Consulting is the #1 Residential Solar Engineering company in the industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Applus Keystonekeystonecompliance.com HQ: New Castle, PA, United StatesReported employees: 11-50 | New Castle, PA, United States | 11-50 | Exact match | 37 contacts → |
“Applus Keystone+ specializes in streamlining the burden of regulatory compliance testing.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Nemko USA - Austinnemko.com HQ: Round Rock, TX, United StatesReported employees: 11-50 | Round Rock, TX, United States | 11-50 | Exact match | 30 contacts → |
“Starting in January of 2022, PTI becomes a part of the Nemko Group.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Molimo, LLCmolimo.com HQ: York, PA, United StatesReported employees: 51-200 | York, PA, United States | 51-200 | Exact match | 19 contacts → |
“As an independent, accredited, third-party test laboratory, Molimo is dedicated to providing clients with a high quality testing experience, complete with the fast and accurate…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sapphire Technical Solutionssapphirests.com HQ: Pineville, NC, United StatesReported employees: 11-50 | Pineville, NC, United States | 11-50 | Exact match | 18 contacts → |
“Sapphire Technical Solutions is an ISO-17025 accredited photometric, radiometric and power efficiency testing laboratory as well as an equipment manufacturer.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Ncee Labsnceelabs.com HQ: Lincoln, NE, United StatesReported employees: 11-50 | Lincoln, NE, United States | 11-50 | Exact match | 16 contacts → |
“NCEE Labs, founded in 1998, provides FCC, CE, and worldwide EMC/wireless testing, Product Safety, Reliability, and X-Ray testing, as well as wireless certification to large and…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Keystone Certifications INCkeystonecerts.com HQ: New Cumberland, PA, United StatesReported employees: 11-50 | New Cumberland, PA, United States | 11-50 | Exact match | 15 contacts → |
“Keystone was founded as a National Fenestration Rating Council (NFRC) licensed Inspection Agency in 1998 by Former President, Marcia Falke, building on her more than 25 years…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Solar Light Company, LLCsolarlight.com HQ: Glenside, PA, United StatesReported employees: 11-50 | Glenside, PA, United States | 11-50 | Exact match | 14 contacts → |
“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 description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Retc, Part Of The VDE Groupretc-ca.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 14 contacts → |
“RETC is an independent testing and certification laboratory specializing in solar and energy storage products.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | PV Letterspvletters.com HQ: Remote, United StatesReported employees: 1-10 | Remote, United States | 1-10 | Exact match | 12 contacts → |
“PV Letters provides structural certification letters for solar installers in the United States.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Printproazprintproaz.com HQ: Phoenix, AZ, United StatesReported employees: 11-50 | Phoenix, AZ, United States | 11-50 | Exact match | 12 contacts → |
“At Print Pro AZ, we are at the forefront of innovation in the solar labeling industry.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Amplify Energyamplifyenergy.com HQ: South San Francisco, CA, United StatesReported employees: 1-10 | South San Francisco, CA, United States | 1-10 | Exact match | 8 contacts → |
“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 description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Estec Solutions, INCestecsolutions.com HQ: Austin, TX, United StatesReported employees: 1-10 | Austin, TX, United States | 1-10 | Exact match | 8 contacts → |
“ESTEC Solutions provides Equipment Safety Testing, Evaluation and Consultation Solutions to Semiconductor, Flat Panel Display and Solar Panel Equipment Manufacturers.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Veriwattveriwatt.com HQ: Springfield, MO, United StatesReported employees: 1-10 | Springfield, MO, United States | 1-10 | Exact match | 7 contacts → |
“Peace of Mind, Investment Protection, Performance Assurance Ethical Third-Party Verification that Builds Trust: Think of us as an independent advocate for solar customers that…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Angstrom Designsangstromdesigns.com HQ: Santa Barbara, United StatesReported employees: 1-10 | Santa Barbara, United States | 1-10 | Exact match | 6 contacts → |
“Angstrom Designs is a diverse group of engineers who focus on systems design for automated instrumentation, control, test and measurement.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Balconbalcontab.com HQ: Council Bluffs, IA, United StatesReported employees: 11-50 | Council Bluffs, IA, United States | 11-50 | Exact match | 6 contacts → |
“Lab Certifications and TAB Testing: BalCon is an industry leader who has been ensuring equipment efficiency and safety for over 25 years.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Lightlab Internationallightlabint.com HQ: Phoenix, AZ, United StatesReported employees: 11-50 | Phoenix, AZ, United States | 11-50 | Exact match | 3 contacts → |
“Independent NVLAP Accredited Testing Laboratories for LM-79, ISTM (In-Situ), Photometrics (Photometry & IES Files), colorimetry and Electrical Measurements.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Integrated Power & Lighting, INCipltitle24.com HQ: Corona, CA, United StatesReported employees: 11-50 | Corona, CA, United States | 11-50 | Exact match | 3 contacts → |
“Electrical Services For Today’s Changing Technologies” Integrated Power & Lighting, Inc.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Photo Emission Technology, INCphotoemission.com HQ: Moorpark, CA, United StatesReported employees: 1-10 | Moorpark, CA, United States | 1-10 | Exact match | 3 contacts → |
“Photo Emission Technology offers a variety of turn-key electronic systems for Solar Cell Testing to help improve efficiency for commercial solar cells.” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Lightlab International Allentown, LLClightlaballentown.com HQ: Allentown, PA, United StatesReported employees: 1-10 | Allentown, PA, United States | 1-10 | Exact match | 2 contacts → |
“Your Partner in Quality Photometrics LightLab International Allentown, LLC is an ISO-Accredited laboratory specializing in personalized, highly accurate measurements of lighting…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Reinnovationsreinnovationsllc.com HQ: Lawrenceville, GA, United StatesReported employees: 1-10 | Lawrenceville, GA, United States | 1-10 | Exact match | 2 contacts → |
“RE Innovations LLC was imagined and created in April 2019 by Joseph M Spossey with the simple goal of providing innovative product development, design, testing and certification…” Recorded description excerpt · September 18, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 56 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Solar testing and certification labs: dataset insights
September 18, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
56 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 56 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 18, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for solar testing and certification labs?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many solar testing and certification labs did RevenueBase find based in the United States?
The saved snapshot records 56 matching company records, 1,189 tracked contacts and 485 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 18, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Solar testing and certification labs by geography
Cite this list
RevenueBase Data Team. Top 25 solar testing and certification labs based in the United States. Snapshot: September 18, 2026. https://revenuebase.ai/companies/solar-testing-and-certification-labs/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Solar testing and certification labs based in Germany
- Solar testing and certification labs based in India
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States