Company lists · Data refreshed October 2026
Top 25 Panel testing and maintenance contractors worldwide
RevenueBase identified 6,349 company matches for panel testing and maintenance contractors worldwide as of October 2026 and tracks 38,679 professional contacts across them, including 7,215 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for panel testing and maintenance contractors 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 October 22, 2026. Country and city lists for panel testing and maintenance contractors 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.
The 25 largest panel testing and maintenance contractors worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,263 contacts → | ||||
Exact match “Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 2 | 666 contacts → | ||||
Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 3 | 566 contacts → | ||||
Exact match “Tata Consultancy Service(TCS) Plumbing / Remodeling / Repair / Maintenance of residential electrical wiring maintenance services, electrical panel maintenance & lighting…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 4 | 415 contacts → | ||||
Exact match “Strada Services is a full service electrical, security, and air conditioning contracting company servicing residential, commercial, and industrial customers in Florida and in the…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 5 | 344 contacts → | ||||
Exact match “Delivering confidence for over 40 years.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 6 | 258 contacts → | ||||
Exact match “In business since 1971, Electrical Reliability Services, Inc.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 7 | 216 contacts → | ||||
Exact match “http://tpiengineering.com/” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 8 | 213 contacts → | ||||
Exact match “PHE Group contracts to provide a range of electrical services throughout Australia and overseas.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 9 | 197 contacts → | ||||
Exact match “Hilscher-Clarke Electric Company is a full service electrical contractor, with more than 100 years experience in the commercial, industrial, and residential markets.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 10 | 178 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 11 | 171 contacts → | ||||
Exact match “Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 12 | 140 contacts → | ||||
Exact match “Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 13 | 138 contacts → | ||||
Exact match “Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 14 | 133 contacts → | ||||
Exact match “White Electrical is a full service industrial electrical contractor supplying many different industries including: automotive, food/beverage, power, chemical, pulp/paper…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 15 | 132 contacts → | ||||
Exact match “LA EMPRESA Y SUS VALORES Osmos tiene por misión la prestación de servicios eléctricos, abarcando la instalación desde su concepción, realizando el montaje y manteniendo las…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 16 | 108 contacts → | ||||
Exact match “New Electric is one of the fastest growing industrial electrical contractors in North America with over 40 years of experience installing and troubleshooting equipment.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 17 | 108 contacts → | ||||
Exact match “Unparalleled Service & Masterful Craftmanship (USMC) A Leader in Customer Service and Satisfaction Since Are you in need of expert Residential or Commercial Electrical services?” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 18 | 107 contacts → | ||||
Exact match “About Lemberg: Lemberg is a full-service electrical contracting firm for industrial, commercial and residential customers.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 19 | 103 contacts → | ||||
Exact match “Welcome to United Electric Founded in 1976, United Electric has emerged as one of the leading electrical services companies in Sarasota and Manatee counties.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 20 | 102 contacts → | ||||
Exact match “Prenad har lång och gedigen erfarenhet av elinstallationer och el service – från den vanliga vägguttaget till komplexa system i bostäder, kontor, industrier och små och stora…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 21 | 101 contacts → | ||||
Exact match “For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 22 | 100 contacts → | ||||
Exact match “Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 23 | 100 contacts → | ||||
Exact match “As a distinguished Qualified TAB & MEP Testing and Commissioning Firm, we take pride in our team of highly certified supervisors and technicians, boasting a total of 30 individual…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 24 | 97 contacts → | ||||
Exact match “With over 85 years of experience in the electrical contracting industry, Allan Briteway Electrical Utility Contractors, Inc.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase | |||||
| 25 | 96 contacts → | ||||
Exact match “Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.” Recorded in the RevenueBase company graph · Oct 22, 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 “panel testing and maintenance contractors”. 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 6,349 panel testing and maintenance contractors worldwide
See the full list, filter by size, metro and specialty, and access 7,215 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Panel testing and maintenance contractors worldwide at a glance
As of Oct 22, 2026Companies by employee count
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 panel testing and maintenance contractors are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “panel testing and maintenance contractors” 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 7,215 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 October 22, 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.
Panel testing and maintenance contractors by location
19 lists · largest firstEvery Panel testing and maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Panel testing and maintenance contractors based in the United States1,530
- Panel testing and maintenance contractors based in the United Kingdom894
- Panel testing and maintenance contractors based in Brazil422
- Panel testing and maintenance contractors based in Italy282
- Panel testing and maintenance contractors based in Canada271
- Panel testing and maintenance contractors based in India249
- Panel testing and maintenance contractors based in Australia239
- Panel testing and maintenance contractors based in France229
- Panel testing and maintenance contractors based in Germany122
- Panel testing and maintenance contractors based in Spain94
- Panel testing and maintenance contractors based in Türkiye85
- Panel testing and maintenance contractors based in Switzerland82
- Panel testing and maintenance contractors based in the Netherlands82
- Panel testing and maintenance contractors based in Norway50
- Panel testing and maintenance contractors based in Belgium48
- Panel testing and maintenance contractors based in Chile48
- Panel testing and maintenance contractors based in New Zealand39
- Panel testing and maintenance contractors based in Sweden34
Cities
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 “panel testing and maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many panel testing and maintenance contractors are there worldwide?
RevenueBase identified 6,349 company matches for panel testing and maintenance contractors worldwide as of October 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?
Shermco Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most panel testing and maintenance contractors?
The United States leads with 1,530 companies, followed by the United Kingdom (894) and Brazil (422). Every panel testing and maintenance contractors list by country and city is linked on this page.
Which city has the most panel testing and maintenance contractors?
London leads with 54 company records, followed by Sao Paulo (51) and Houston (30).
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 7,215 professional contacts with verified work emails tracked across these 6,349 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 October 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 6,349 panel testing and maintenance contractors worldwide. 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.
More company lists
Company intelligence · public preview
Top 25 panel testing and maintenance contractors worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 6,349 matching company records for panel testing and maintenance contractors worldwide, with 38,679 tracked contacts and 7,215 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: October 22, 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 panel testing and maintenance contractors worldwide
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 |  Shermco Industriesshermco.comHQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 1,263 contacts → |
“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Electric Power Systemsvoltyx.comHQ: Maryland Heights, MO, United StatesReported employees: 501-1,000 | Maryland Heights, MO, United States | 501-1,000 | Exact match | 666 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Tata Consultancy Service TCSindiamart.com HQ: Nagpur, IndiaReported employees: 51-200 | Nagpur, India | 51-200 | Exact match | 566 contacts → |
“Tata Consultancy Service(TCS) Plumbing / Remodeling / Repair / Maintenance of residential electrical wiring maintenance services, electrical panel maintenance & lighting…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Strada Servicesstradaservices.comHQ: Sanford, FL, United StatesReported employees: 1,001-5,000 | Sanford, FL, United States | 1,001-5,000 | Exact match | 415 contacts → |
“Strada Services is a full service electrical, security, and air conditioning contracting company servicing residential, commercial, and industrial customers in Florida and in the…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Edmonton, AB, CanadaReported employees: 201-500 | Edmonton, AB, Canada | 201-500 | Exact match | 344 contacts → |
“Delivering confidence for over 40 years.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Electrical Reliability Services, INCers.vertiv.comHQ: Westerville, OH, United StatesReported employees: 201-500 | Westerville, OH, United States | 201-500 | Exact match | 258 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | TPItpiengineering.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 216 contacts → |
“http://tpiengineering.com/” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | PHE Groupphe.net.au HQ: Eagle Farm, AustraliaReported employees: 201-500 | Eagle Farm, Australia | 201-500 | Exact match | 213 contacts → |
“PHE Group contracts to provide a range of electrical services throughout Australia and overseas.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hilscher-Clarke Electric Companyhilscher-clarke.com HQ: Canton, OH, United StatesReported employees: 201-500 | Canton, OH, United States | 201-500 | Exact match | 197 contacts → |
“Hilscher-Clarke Electric Company is a full service electrical contractor, with more than 100 years experience in the commercial, industrial, and residential markets.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Gurtz Electric COgurtzelectric.com HQ: Arlington Heights, IL, United StatesReported employees: 501-1,000 | Arlington Heights, IL, United States | 501-1,000 | Exact match | 178 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Rubicon Technical Services - RTSrubicontechservices.comHQ: Kennesaw, GA, United StatesReported employees: 51-200 | Kennesaw, GA, United States | 51-200 | Exact match | 171 contacts → |
“Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Guardian Electrical Compliance LTDguardianelectrical.co.uk HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 140 contacts → |
“Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Electric Motor & Contracting Co., INCemc-co.com HQ: Chesapeake, VA, United StatesReported employees: 201-500 | Chesapeake, VA, United States | 201-500 | Exact match | 138 contacts → |
“Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  White Electrical Construction Companywhite-electrical.comHQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 133 contacts → |
“White Electrical is a full service industrial electrical contractor supplying many different industries including: automotive, food/beverage, power, chemical, pulp/paper…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Osmos Sistemas Eléctricososmos.esHQ: A Coruña, SpainReported employees: 201-500 | A Coruña, Spain | 201-500 | Exact match | 132 contacts → |
“LA EMPRESA Y SUS VALORES Osmos tiene por misión la prestación de servicios eléctricos, abarcando la instalación desde su concepción, realizando el montaje y manteniendo las…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | NEW Electricnewelectric.com HQ: Oakville, ON, CanadaReported employees: 201-500 | Oakville, ON, Canada | 201-500 | Exact match | 108 contacts → |
“New Electric is one of the fastest growing industrial electrical contractors in North America with over 40 years of experience installing and troubleshooting equipment.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Usmc Electricusmcelectric.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 108 contacts → |
“Unparalleled Service & Masterful Craftmanship (USMC) A Leader in Customer Service and Satisfaction Since Are you in need of expert Residential or Commercial Electrical services?” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Lemberglembergelectric.com HQ: Brookfield, WI, United StatesReported employees: 51-200 | Brookfield, WI, United States | 51-200 | Exact match | 107 contacts → |
“About Lemberg: Lemberg is a full-service electrical contracting firm for industrial, commercial and residential customers.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  United Electricunitedelectric.bizHQ: Bradenton, FL, United StatesReported employees: 11-50 | Bradenton, FL, United States | 11-50 | Exact match | 103 contacts → |
“Welcome to United Electric Founded in 1976, United Electric has emerged as one of the leading electrical services companies in Sarasota and Manatee counties.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Prenad ABprenad.seHQ: Helsingborg, SwedenReported employees: 501-1,000 | Helsingborg, Sweden | 501-1,000 | Exact match | 102 contacts → |
“Prenad har lång och gedigen erfarenhet av elinstallationer och el service – från den vanliga vägguttaget till komplexa system i bostäder, kontor, industrier och små och stora…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Technical Diagnostic Servicestdssolutions.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 101 contacts → |
“For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Master Electricmasterelectric.com HQ: Savage, MN, United StatesReported employees: 51-200 | Savage, MN, United States | 51-200 | Exact match | 100 contacts → |
“Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Jedi Internationaljedi-me.com HQ: Doha, QatarReported employees: 201-500 | Doha, Qatar | 201-500 | Exact match | 100 contacts → |
“As a distinguished Qualified TAB & MEP Testing and Commissioning Firm, we take pride in our team of highly certified supervisors and technicians, boasting a total of 30 individual…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Allan Briteway Electrical Utility Contractors, INCallanbritewayutility.comHQ: Florham Park, NJ, United StatesReported employees: 51-200 | Florham Park, NJ, United States | 51-200 | Exact match | 97 contacts → |
“With over 85 years of experience in the electrical contracting industry, Allan Briteway Electrical Utility Contractors, Inc.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | DPG Deutsche Elektro Prüfgesellschaft MBHdpg-gruppe.de HQ: Mannheim, GermanyReported employees: 201-500 | Mannheim, Germany | 201-500 | Exact match | 96 contacts → |
“Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 6,349 company matches
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Panel testing and maintenance contractors: dataset insights
October 22, 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
6,244 records in the displayed employee bands.
105 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 6,349 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: October 22, 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 ↗
Panel testing and maintenance contractors by location
19 lists · largest firstEvery Panel testing and maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Panel testing and maintenance contractors based in the United States1,530
- Panel testing and maintenance contractors based in the United Kingdom894
- Panel testing and maintenance contractors based in Brazil422
- Panel testing and maintenance contractors based in Italy282
- Panel testing and maintenance contractors based in Canada271
- Panel testing and maintenance contractors based in India249
- Panel testing and maintenance contractors based in Australia239
- Panel testing and maintenance contractors based in France229
- Panel testing and maintenance contractors based in Germany122
- Panel testing and maintenance contractors based in Spain94
- Panel testing and maintenance contractors based in Türkiye85
- Panel testing and maintenance contractors based in Switzerland82
- Panel testing and maintenance contractors based in the Netherlands82
- Panel testing and maintenance contractors based in Norway50
- Panel testing and maintenance contractors based in Belgium48
- Panel testing and maintenance contractors based in Chile48
- Panel testing and maintenance contractors based in New Zealand39
- Panel testing and maintenance contractors based in Sweden34
Cities
Questions about this company list
What does Exact match mean for panel testing and maintenance contractors?
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 panel testing and maintenance contractors did RevenueBase find worldwide?
The saved snapshot records 6,349 matching company records, 38,679 tracked contacts and 7,215 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: October 22, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 panel testing and maintenance contractors worldwide. Snapshot: October 22, 2026. https://revenuebase.ai/companies/browse/panel-testing-and-maintenance-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 panel testing and maintenance contractors worldwide
RevenueBase records 6,349 matching company records for panel testing and maintenance contractors worldwide, with 38,679 tracked contacts and 7,215 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: October 22, 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 panel testing and maintenance contractors worldwide
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 | Shermco Industriesshermco.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 1,263 contacts → |
“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Electric Power Systemsvoltyx.com HQ: Maryland Heights, MO, United StatesReported employees: 501-1,000 | Maryland Heights, MO, United States | 501-1,000 | Exact match | 666 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Tata Consultancy Service TCSindiamart.com HQ: Nagpur, IndiaReported employees: 51-200 | Nagpur, India | 51-200 | Exact match | 566 contacts → |
“Tata Consultancy Service(TCS) Plumbing / Remodeling / Repair / Maintenance of residential electrical wiring maintenance services, electrical panel maintenance & lighting…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Strada Servicesstradaservices.com HQ: Sanford, FL, United StatesReported employees: 1,001-5,000 | Sanford, FL, United States | 1,001-5,000 | Exact match | 415 contacts → |
“Strada Services is a full service electrical, security, and air conditioning contracting company servicing residential, commercial, and industrial customers in Florida and in the…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | HQ: Edmonton, AB, CanadaReported employees: 201-500 | Edmonton, AB, Canada | 201-500 | Exact match | 344 contacts → |
“Delivering confidence for over 40 years.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Electrical Reliability Services, INCers.vertiv.com HQ: Westerville, OH, United StatesReported employees: 201-500 | Westerville, OH, United States | 201-500 | Exact match | 258 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | TPItpiengineering.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 216 contacts → |
“http://tpiengineering.com/” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | PHE Groupphe.net.au HQ: Eagle Farm, AustraliaReported employees: 201-500 | Eagle Farm, Australia | 201-500 | Exact match | 213 contacts → |
“PHE Group contracts to provide a range of electrical services throughout Australia and overseas.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Hilscher-Clarke Electric Companyhilscher-clarke.com HQ: Canton, OH, United StatesReported employees: 201-500 | Canton, OH, United States | 201-500 | Exact match | 197 contacts → |
“Hilscher-Clarke Electric Company is a full service electrical contractor, with more than 100 years experience in the commercial, industrial, and residential markets.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Gurtz Electric COgurtzelectric.com HQ: Arlington Heights, IL, United StatesReported employees: 501-1,000 | Arlington Heights, IL, United States | 501-1,000 | Exact match | 178 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Rubicon Technical Services - RTSrubicontechservices.com HQ: Kennesaw, GA, United StatesReported employees: 51-200 | Kennesaw, GA, United States | 51-200 | Exact match | 171 contacts → |
“Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Guardian Electrical Compliance LTDguardianelectrical.co.uk HQ: Sheffield, United KingdomReported employees: 51-200 | Sheffield, United Kingdom | 51-200 | Exact match | 140 contacts → |
“Founded in 2010, Guardian Electrical Compliance Ltd have become the market leaders in terms of Duty Holder guidance, technical & legislative support, site delivery and after sales…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Electric Motor & Contracting Co., INCemc-co.com HQ: Chesapeake, VA, United StatesReported employees: 201-500 | Chesapeake, VA, United States | 201-500 | Exact match | 138 contacts → |
“Established in 1960, Electric Motor and Contracting remains one of the largest independently owned electric motor and pump repair shops in the U.S.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | White Electrical Construction Companywhite-electrical.com HQ: Atlanta, GA, United StatesReported employees: 201-500 | Atlanta, GA, United States | 201-500 | Exact match | 133 contacts → |
“White Electrical is a full service industrial electrical contractor supplying many different industries including: automotive, food/beverage, power, chemical, pulp/paper…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Osmos Sistemas Eléctricososmos.es HQ: A Coruña, SpainReported employees: 201-500 | A Coruña, Spain | 201-500 | Exact match | 132 contacts → |
“LA EMPRESA Y SUS VALORES Osmos tiene por misión la prestación de servicios eléctricos, abarcando la instalación desde su concepción, realizando el montaje y manteniendo las…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | NEW Electricnewelectric.com HQ: Oakville, ON, CanadaReported employees: 201-500 | Oakville, ON, Canada | 201-500 | Exact match | 108 contacts → |
“New Electric is one of the fastest growing industrial electrical contractors in North America with over 40 years of experience installing and troubleshooting equipment.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Usmc Electricusmcelectric.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 108 contacts → |
“Unparalleled Service & Masterful Craftmanship (USMC) A Leader in Customer Service and Satisfaction Since Are you in need of expert Residential or Commercial Electrical services?” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Lemberglembergelectric.com HQ: Brookfield, WI, United StatesReported employees: 51-200 | Brookfield, WI, United States | 51-200 | Exact match | 107 contacts → |
“About Lemberg: Lemberg is a full-service electrical contracting firm for industrial, commercial and residential customers.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | United Electricunitedelectric.biz HQ: Bradenton, FL, United StatesReported employees: 11-50 | Bradenton, FL, United States | 11-50 | Exact match | 103 contacts → |
“Welcome to United Electric Founded in 1976, United Electric has emerged as one of the leading electrical services companies in Sarasota and Manatee counties.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Prenad ABprenad.se HQ: Helsingborg, SwedenReported employees: 501-1,000 | Helsingborg, Sweden | 501-1,000 | Exact match | 102 contacts → |
“Prenad har lång och gedigen erfarenhet av elinstallationer och el service – från den vanliga vägguttaget till komplexa system i bostäder, kontor, industrier och små och stora…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Technical Diagnostic Servicestdssolutions.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 101 contacts → |
“For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Master Electricmasterelectric.com HQ: Savage, MN, United StatesReported employees: 51-200 | Savage, MN, United States | 51-200 | Exact match | 100 contacts → |
“Master Electric is a full service electrical contractor servicing the upper mid-west since 1973, providing commercial/industrial, multi-family, communication/data/fire/safety with…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Jedi Internationaljedi-me.com HQ: Doha, QatarReported employees: 201-500 | Doha, Qatar | 201-500 | Exact match | 100 contacts → |
“As a distinguished Qualified TAB & MEP Testing and Commissioning Firm, we take pride in our team of highly certified supervisors and technicians, boasting a total of 30 individual…” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Allan Briteway Electrical Utility Contractors, INCallanbritewayutility.com HQ: Florham Park, NJ, United StatesReported employees: 51-200 | Florham Park, NJ, United States | 51-200 | Exact match | 97 contacts → |
“With over 85 years of experience in the electrical contracting industry, Allan Briteway Electrical Utility Contractors, Inc.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | DPG Deutsche Elektro Prüfgesellschaft MBHdpg-gruppe.de HQ: Mannheim, GermanyReported employees: 201-500 | Mannheim, Germany | 201-500 | Exact match | 96 contacts → |
“Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.” Recorded description excerpt · October 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 6,349 company matches
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Panel testing and maintenance contractors: dataset insights
October 22, 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
6,244 records in the displayed employee bands.
105 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 6,349 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: October 22, 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 ↗
Panel testing and maintenance contractors by location
19 lists · largest firstEvery Panel testing and maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Panel testing and maintenance contractors based in the United States1,530
- Panel testing and maintenance contractors based in the United Kingdom894
- Panel testing and maintenance contractors based in Brazil422
- Panel testing and maintenance contractors based in Italy282
- Panel testing and maintenance contractors based in Canada271
- Panel testing and maintenance contractors based in India249
- Panel testing and maintenance contractors based in Australia239
- Panel testing and maintenance contractors based in France229
- Panel testing and maintenance contractors based in Germany122
- Panel testing and maintenance contractors based in Spain94
- Panel testing and maintenance contractors based in Türkiye85
- Panel testing and maintenance contractors based in Switzerland82
- Panel testing and maintenance contractors based in the Netherlands82
- Panel testing and maintenance contractors based in Norway50
- Panel testing and maintenance contractors based in Belgium48
- Panel testing and maintenance contractors based in Chile48
- Panel testing and maintenance contractors based in New Zealand39
- Panel testing and maintenance contractors based in Sweden34
Cities
Questions about this company list
What does Exact match mean for panel testing and maintenance contractors?
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 panel testing and maintenance contractors did RevenueBase find worldwide?
The saved snapshot records 6,349 matching company records, 38,679 tracked contacts and 7,215 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: October 22, 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.
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Cite this list
RevenueBase Data Team. Top 25 panel testing and maintenance contractors worldwide. Snapshot: October 22, 2026. https://revenuebase.ai/companies/browse/panel-testing-and-maintenance-contractors.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗