Company lists · Data refreshed November 2026
Top 25 Electrical system diagnostics companies worldwide
RevenueBase identified 5,091 company matches for electrical system diagnostics companies worldwide as of November 2026 and tracks 30,506 professional contacts across them, including 6,887 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for electrical system diagnostics companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for electrical system diagnostics companies 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 electrical system diagnostics companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,324 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 678 contacts → | ||||
Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 662 contacts → | ||||
Exact match “Doble is the world’s most trusted brand in electrical diagnostics.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 571 contacts → | ||||
Exact match “Advanced diagnosis of faults of the whole type of electrical systems Commissioning of wind turbines Troubleshooting during the different lifetime periods of wind turbines…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 471 contacts → | ||||
Exact match “We provide global testing services for automotive, aeronautic & defence industries : we perform environmental, mechanical, EMC and electrical tests.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 456 contacts → | ||||
Exact match “Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 443 contacts → | ||||
Exact match “CONTRATOS DE MANUTENÇÃO A Tereme oferece a seus clientes soluções de manutenção global ou parcial dos equipamentos e instalações elétricas de uma planta industrial.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 355 contacts → | ||||
Exact match “Delivering confidence for over 40 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 270 contacts → | ||||
Exact match “In business since 1971, Electrical Reliability Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 219 contacts → | ||||
Exact match “SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 172 contacts → | ||||
Exact match “THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 154 contacts → | ||||
Exact match “Schmidt Electric has made its mark on the Austin marketplace by providing superior installation, service and support to all its clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 138 contacts → | ||||
Exact match “Mobile Auto Solutions provides unrivaled experience, capabilities, training, and equipment to the automotive industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 138 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 129 contacts → | ||||
Exact match “Complete end-to-end solutions for collision, glass, and repair shops.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 113 contacts → | ||||
Exact match “BAUR is the world market leader of testing and measurement technology.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 108 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 106 contacts → | ||||
Exact match “For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 105 contacts → | ||||
Exact match “Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 103 contacts → | ||||
Exact match “Since 1974, United Electric has served homeowners and businesses throughout Manatee, Sarasota, and Charlotte counties with dependable electrical expertise and responsive local…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 101 contacts → | ||||
Exact match “En GERS realizamos estudios de sistemas eléctricos, diseño, interventorías, pruebas, puesta en servicio de proyectos para electrificadoras, la industria y el comercio.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 99 contacts → | ||||
Exact match “D&V Electronics of Toronto, Canada designs and manufactures electric motor, inverter, BSG / ISG motors, alternator and starter testers for endurance, performance and production…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 99 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 95 contacts → | ||||
Exact match “Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 94 contacts → | ||||
Exact match “Our licensed electricians are prepared to solve all of your complex electrical issues.” Recorded in the RevenueBase company graph · Nov 6, 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 “electrical system diagnostics companies”. 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 5,091 electrical system diagnostics companies worldwide
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Electrical system diagnostics companies worldwide at a glance
As of Nov 6, 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 electrical system diagnostics companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “electrical system diagnostics companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. 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 6,887 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 6, 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.
Electrical system diagnostics companies by location
18 lists · largest firstEvery Electrical system diagnostics companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Electrical system diagnostics companies based in the United States878
- Electrical system diagnostics companies based in the United Kingdom868
- Electrical system diagnostics companies based in Brazil359
- Electrical system diagnostics companies based in France237
- Electrical system diagnostics companies based in Australia230
- Electrical system diagnostics companies based in Italy196
- Electrical system diagnostics companies based in Germany182
- Electrical system diagnostics companies based in Canada156
- Electrical system diagnostics companies based in India134
- Electrical system diagnostics companies based in the Netherlands113
- Electrical system diagnostics companies based in Spain96
- Electrical system diagnostics companies based in Switzerland89
- Electrical system diagnostics companies based in New Zealand56
- Electrical system diagnostics companies based in Chile53
- Electrical system diagnostics companies based in Sweden51
- Electrical system diagnostics companies based in Belgium46
- Electrical system diagnostics companies based in Norway39
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 “electrical system diagnostics companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many electrical system diagnostics companies are there worldwide?
RevenueBase identified 5,091 company matches for electrical system diagnostics companies worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Shermco Industries tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most electrical system diagnostics companies?
The United States leads with 878 companies, followed by the United Kingdom (868) and Brazil (359). Every electrical system diagnostics companies list by country and city is linked on this page.
Which city has the most electrical system diagnostics companies?
London leads with 57 company records, followed by Sao Paulo (44) and Houston (19).
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 6,887 professional contacts with verified work emails tracked across these 5,091 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 5,091 electrical system diagnostics companies 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 electrical system diagnostics companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 5,091 matching company records for electrical system diagnostics companies worldwide, with 30,506 tracked contacts and 6,887 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: November 6, 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 electrical system diagnostics companies 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, OK, United StatesReported employees: 1,001-5,000 | Irving, OK, United States | 1,001-5,000 | Exact match | 1,324 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Electric Power Systemsvoltyx.comHQ: Maryland Heights, MI, United StatesReported employees: 501-1,000 | Maryland Heights, MI, United States | 501-1,000 | Exact match | 678 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Doble Engineeringdoble.comHQ: Marlborough, MA, United StatesReported employees: 501-1,000 | Marlborough, MA, United States | 501-1,000 | Exact match | 662 contacts → |
“Doble is the world’s most trusted brand in electrical diagnostics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Endiprevmuehlhanwindservices.comHQ: Porto, PortugalReported employees: 501-1,000 | Porto, Portugal | 501-1,000 | Exact match | 571 contacts → |
“Advanced diagnosis of faults of the whole type of electrical systems Commissioning of wind turbines Troubleshooting during the different lifetime periods of wind turbines…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Emitech Groupemitech-group.comHQ: Montigny Le Bretonneux, FranceReported employees: 501-1,000 | Montigny Le Bretonneux, France | 501-1,000 | Exact match | 471 contacts → |
“We provide global testing services for automotive, aeronautic & defence industries : we perform environmental, mechanical, EMC and electrical tests.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Quartzelec Limitedquartzelec.comHQ: Rugby, United KingdomReported employees: 501-1,000 | Rugby, United Kingdom | 501-1,000 | Exact match | 456 contacts → |
“Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Tereme Engenhariatereme.com.brHQ: Serra, BrazilReported employees: 501-1,000 | Serra, Brazil | 501-1,000 | Exact match | 443 contacts → |
“CONTRATOS DE MANUTENÇÃO A Tereme oferece a seus clientes soluções de manutenção global ou parcial dos equipamentos e instalações elétricas de uma planta industrial.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Edmonton, CO, CanadaReported employees: 201-500 | Edmonton, CO, Canada | 201-500 | Exact match | 355 contacts → |
“Delivering confidence for over 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Electrical Reliability Services, INCers.vertiv.comHQ: Westerville, SC, United StatesReported employees: 201-500 | Westerville, SC, United States | 201-500 | Exact match | 270 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Sdmyerssdmyers.comHQ: Tallmadge, OH, United StatesReported employees: 201-500 | Tallmadge, OH, United States | 201-500 | Exact match | 219 contacts → |
“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Innova Electronics Corpinnova.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 172 contacts → |
“THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Schmidt Electric Co., INCschmidt-electric.comHQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 154 contacts → |
“Schmidt Electric has made its mark on the Austin marketplace by providing superior installation, service and support to all its clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Mobile Auto Solutionsmasllc.netHQ: Broadview, IL, United StatesReported employees: 201-500 | Broadview, IL, United States | 201-500 | Exact match | 138 contacts → |
“Mobile Auto Solutions provides unrivaled experience, capabilities, training, and equipment to the automotive industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Osmos Sistemas Eléctricososmos.esHQ: A Coruña, SpainReported employees: 201-500 | A Coruña, Spain | 201-500 | Exact match | 138 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Airpro Diagnosticsairprodiagnostics.comHQ: Jacksonville, FL, United StatesReported employees: 201-500 | Jacksonville, FL, United States | 201-500 | Exact match | 129 contacts → |
“Complete end-to-end solutions for collision, glass, and repair shops.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Baur Gmbhbaur.euHQ: Sulz, FranceReported employees: 51-200 | Sulz, France | 51-200 | Exact match | 113 contacts → |
“BAUR is the world market leader of testing and measurement technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Prenad ABprenad.seHQ: Helsingborg, SwedenReported employees: 501-1,000 | Helsingborg, Sweden | 501-1,000 | Exact match | 108 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Technical Diagnostic Servicestdssolutions.comHQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 106 contacts → |
“For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  DPG Deutsche Elektro Prüfgesellschaft MBHdpg-gruppe.deHQ: Mannheim, GermanyReported employees: 201-500 | Mannheim, Germany | 201-500 | Exact match | 105 contacts → |
“Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  United Electricunitedelectric.bizHQ: Bradenton, FL, United StatesReported employees: 11-50 | Bradenton, FL, United States | 11-50 | Exact match | 103 contacts → |
“Since 1974, United Electric has served homeowners and businesses throughout Manatee, Sarasota, and Charlotte counties with dependable electrical expertise and responsive local…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Gers Colombiagers.com.coHQ: Chile, ColombiaReported employees: 51-200 | Chile, Colombia | 51-200 | Exact match | 101 contacts → |
“En GERS realizamos estudios de sistemas eléctricos, diseño, interventorías, pruebas, puesta en servicio de proyectos para electrificadoras, la industria y el comercio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  D&v Electronicsdvelectronics.comHQ: Woodbridge, ON, United StatesReported employees: 51-200 | Woodbridge, ON, United States | 51-200 | Exact match | 99 contacts → |
“D&V Electronics of Toronto, Canada designs and manufactures electric motor, inverter, BSG / ISG motors, alternator and starter testers for endurance, performance and production…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Master Electricmasterelectric.comHQ: Savage, MN, United StatesReported employees: 51-200 | Savage, MN, United States | 51-200 | Exact match | 99 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Electrical Engineering & Service Co., INCeescousa.comHQ: Holbrook, MA, United StatesReported employees: Not recorded | Holbrook, MA, United States | Not recorded | Exact match | 95 contacts → |
“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Hi-Tech Electric Companyhi-techelectric.netHQ: Kalamazoo, IN, United StatesReported employees: 201-500 | Kalamazoo, IN, United States | 201-500 | Exact match | 94 contacts → |
“Our licensed electricians are prepared to solve all of your complex electrical issues.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,091 company matches
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Electrical system diagnostics companies: dataset insights
November 6, 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
4,874 records in the displayed employee bands.
217 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 5,091 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: November 6, 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 ↗
Electrical system diagnostics companies by location
18 lists · largest firstEvery Electrical system diagnostics companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Electrical system diagnostics companies based in the United States878
- Electrical system diagnostics companies based in the United Kingdom868
- Electrical system diagnostics companies based in Brazil359
- Electrical system diagnostics companies based in France237
- Electrical system diagnostics companies based in Australia230
- Electrical system diagnostics companies based in Italy196
- Electrical system diagnostics companies based in Germany182
- Electrical system diagnostics companies based in Canada156
- Electrical system diagnostics companies based in India134
- Electrical system diagnostics companies based in the Netherlands113
- Electrical system diagnostics companies based in Spain96
- Electrical system diagnostics companies based in Switzerland89
- Electrical system diagnostics companies based in New Zealand56
- Electrical system diagnostics companies based in Chile53
- Electrical system diagnostics companies based in Sweden51
- Electrical system diagnostics companies based in Belgium46
- Electrical system diagnostics companies based in Norway39
Cities
Questions about this company list
What does Exact match mean for electrical system diagnostics companies?
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 electrical system diagnostics companies did RevenueBase find worldwide?
The saved snapshot records 5,091 matching company records, 30,506 tracked contacts and 6,887 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: November 6, 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 electrical system diagnostics companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/electrical-system-diagnostics-companies.
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 electrical system diagnostics companies worldwide
RevenueBase records 5,091 matching company records for electrical system diagnostics companies worldwide, with 30,506 tracked contacts and 6,887 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: November 6, 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 electrical system diagnostics companies 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, OK, United StatesReported employees: 1,001-5,000 | Irving, OK, United States | 1,001-5,000 | Exact match | 1,324 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Electric Power Systemsvoltyx.com HQ: Maryland Heights, MI, United StatesReported employees: 501-1,000 | Maryland Heights, MI, United States | 501-1,000 | Exact match | 678 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Doble Engineeringdoble.com HQ: Marlborough, MA, United StatesReported employees: 501-1,000 | Marlborough, MA, United States | 501-1,000 | Exact match | 662 contacts → |
“Doble is the world’s most trusted brand in electrical diagnostics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Endiprevmuehlhanwindservices.com HQ: Porto, PortugalReported employees: 501-1,000 | Porto, Portugal | 501-1,000 | Exact match | 571 contacts → |
“Advanced diagnosis of faults of the whole type of electrical systems Commissioning of wind turbines Troubleshooting during the different lifetime periods of wind turbines…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Emitech Groupemitech-group.com HQ: Montigny Le Bretonneux, FranceReported employees: 501-1,000 | Montigny Le Bretonneux, France | 501-1,000 | Exact match | 471 contacts → |
“We provide global testing services for automotive, aeronautic & defence industries : we perform environmental, mechanical, EMC and electrical tests.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Quartzelec Limitedquartzelec.com HQ: Rugby, United KingdomReported employees: 501-1,000 | Rugby, United Kingdom | 501-1,000 | Exact match | 456 contacts → |
“Quartzelec is a leading independent electrical engineering group delivering solutions and services in both UK and global markets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Tereme Engenhariatereme.com.br HQ: Serra, BrazilReported employees: 501-1,000 | Serra, Brazil | 501-1,000 | Exact match | 443 contacts → |
“CONTRATOS DE MANUTENÇÃO A Tereme oferece a seus clientes soluções de manutenção global ou parcial dos equipamentos e instalações elétricas de uma planta industrial.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Edmonton, CO, CanadaReported employees: 201-500 | Edmonton, CO, Canada | 201-500 | Exact match | 355 contacts → |
“Delivering confidence for over 40 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Electrical Reliability Services, INCers.vertiv.com HQ: Westerville, SC, United StatesReported employees: 201-500 | Westerville, SC, United States | 201-500 | Exact match | 270 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Sdmyerssdmyers.com HQ: Tallmadge, OH, United StatesReported employees: 201-500 | Tallmadge, OH, United States | 201-500 | Exact match | 219 contacts → |
“SDMyers is the industry leader in transformer and substation maintenance and electric power system reliability.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Innova Electronics Corpinnova.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 172 contacts → |
“THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Schmidt Electric Co., INCschmidt-electric.com HQ: Austin, TX, United StatesReported employees: 201-500 | Austin, TX, United States | 201-500 | Exact match | 154 contacts → |
“Schmidt Electric has made its mark on the Austin marketplace by providing superior installation, service and support to all its clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Mobile Auto Solutionsmasllc.net HQ: Broadview, IL, United StatesReported employees: 201-500 | Broadview, IL, United States | 201-500 | Exact match | 138 contacts → |
“Mobile Auto Solutions provides unrivaled experience, capabilities, training, and equipment to the automotive industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Osmos Sistemas Eléctricososmos.es HQ: A Coruña, SpainReported employees: 201-500 | A Coruña, Spain | 201-500 | Exact match | 138 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Airpro Diagnosticsairprodiagnostics.com HQ: Jacksonville, FL, United StatesReported employees: 201-500 | Jacksonville, FL, United States | 201-500 | Exact match | 129 contacts → |
“Complete end-to-end solutions for collision, glass, and repair shops.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Baur Gmbhbaur.eu HQ: Sulz, FranceReported employees: 51-200 | Sulz, France | 51-200 | Exact match | 113 contacts → |
“BAUR is the world market leader of testing and measurement technology.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Prenad ABprenad.se HQ: Helsingborg, SwedenReported employees: 501-1,000 | Helsingborg, Sweden | 501-1,000 | Exact match | 108 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Technical Diagnostic Servicestdssolutions.com HQ: Fort Worth, TX, United StatesReported employees: 201-500 | Fort Worth, TX, United States | 201-500 | Exact match | 106 contacts → |
“For over 25 years, Sentinel-TDS, based in Dallas/Ft.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | DPG Deutsche Elektro Prüfgesellschaft MBHdpg-gruppe.de HQ: Mannheim, GermanyReported employees: 201-500 | Mannheim, Germany | 201-500 | Exact match | 105 contacts → |
“Die DPG ist der innovative Dienstleister für hochwertige elektrische und nichtelektrische Betriebssicherheitsprüfungen.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | United Electricunitedelectric.biz HQ: Bradenton, FL, United StatesReported employees: 11-50 | Bradenton, FL, United States | 11-50 | Exact match | 103 contacts → |
“Since 1974, United Electric has served homeowners and businesses throughout Manatee, Sarasota, and Charlotte counties with dependable electrical expertise and responsive local…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Gers Colombiagers.com.co HQ: Chile, ColombiaReported employees: 51-200 | Chile, Colombia | 51-200 | Exact match | 101 contacts → |
“En GERS realizamos estudios de sistemas eléctricos, diseño, interventorías, pruebas, puesta en servicio de proyectos para electrificadoras, la industria y el comercio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | D&v Electronicsdvelectronics.com HQ: Woodbridge, ON, United StatesReported employees: 51-200 | Woodbridge, ON, United States | 51-200 | Exact match | 99 contacts → |
“D&V Electronics of Toronto, Canada designs and manufactures electric motor, inverter, BSG / ISG motors, alternator and starter testers for endurance, performance and production…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Master Electricmasterelectric.com HQ: Savage, MN, United StatesReported employees: 51-200 | Savage, MN, United States | 51-200 | Exact match | 99 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Electrical Engineering & Service Co., INCeescousa.com HQ: Holbrook, MA, United StatesReported employees: Not recorded | Holbrook, MA, United States | Not recorded | Exact match | 95 contacts → |
“Specialists in Electrical Power Systems - Testing, Commissioning, Maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Hi-Tech Electric Companyhi-techelectric.net HQ: Kalamazoo, IN, United StatesReported employees: 201-500 | Kalamazoo, IN, United States | 201-500 | Exact match | 94 contacts → |
“Our licensed electricians are prepared to solve all of your complex electrical issues.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 5,091 company matches
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Electrical system diagnostics companies: dataset insights
November 6, 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
4,874 records in the displayed employee bands.
217 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 5,091 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: November 6, 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 ↗
Electrical system diagnostics companies by location
18 lists · largest firstEvery Electrical system diagnostics companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Electrical system diagnostics companies based in the United States878
- Electrical system diagnostics companies based in the United Kingdom868
- Electrical system diagnostics companies based in Brazil359
- Electrical system diagnostics companies based in France237
- Electrical system diagnostics companies based in Australia230
- Electrical system diagnostics companies based in Italy196
- Electrical system diagnostics companies based in Germany182
- Electrical system diagnostics companies based in Canada156
- Electrical system diagnostics companies based in India134
- Electrical system diagnostics companies based in the Netherlands113
- Electrical system diagnostics companies based in Spain96
- Electrical system diagnostics companies based in Switzerland89
- Electrical system diagnostics companies based in New Zealand56
- Electrical system diagnostics companies based in Chile53
- Electrical system diagnostics companies based in Sweden51
- Electrical system diagnostics companies based in Belgium46
- Electrical system diagnostics companies based in Norway39
Cities
Questions about this company list
What does Exact match mean for electrical system diagnostics companies?
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 electrical system diagnostics companies did RevenueBase find worldwide?
The saved snapshot records 5,091 matching company records, 30,506 tracked contacts and 6,887 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: November 6, 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
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Cite this list
RevenueBase Data Team. Top 25 electrical system diagnostics companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/electrical-system-diagnostics-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗