Company lists · Data refreshed November 2026

Top 25 Electrical fault detection services worldwide

RevenueBase identified 3,696 company matches for electrical fault detection services worldwide as of November 2026 and tracks 20,354 professional contacts across them, including 3,578 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers company matches for electrical fault detection services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for electrical fault detection services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
3,696Companies
20,354Contacts tracked
3,578Verified emails
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The 25 largest electrical fault detection services worldwide

Ranked by team size
Top 25 of 3,696 company matches for electrical fault detection services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchIrving, OK, United StatesHQ recorded Nov 6, 20261,001-5,0001,324 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
2Exact matchMaryland Heights, MI, United StatesHQ recorded Nov 6, 2026501-1,000678 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
3Exact matchMarlborough, MA, United StatesHQ recorded Nov 6, 2026501-1,000662 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
4Exact matchWesterville, SC, United StatesHQ recorded Nov 6, 2026201-500270 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
5Exact matchTallmadge, OH, United StatesHQ recorded Nov 6, 2026201-500219 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
6Exact matchLansing, United StatesHQ recorded Nov 6, 202651-200194 contacts →

Exact match

“Electrical; Fire Alarm; Kitchen equipment; low voltage network, voice and fiber optic cabling; AV; Sound and Security services for residential, commercial and industrial customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchFort Worth, TX, United StatesHQ recorded Nov 6, 2026201-500106 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
8Exact matchBradenton, FL, United StatesHQ recorded Nov 6, 202611-50103 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
9Exact matchChile, ColombiaHQ recorded Nov 6, 202651-200101 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
10Exact matchSavage, MN, United StatesHQ recorded Nov 6, 202651-20099 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
11Exact matchHolbrook, MA, United StatesHQ recorded Nov 6, 2026n/a95 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
12Exact matchBogota, ColombiaHQ recorded Nov 6, 202651-20090 contacts →

Exact match

“Somos solución integral en la ejecución de pruebas a sistemas eléctricos a cualquier nivel de tensión; Ofrecemos la ejecución de una amplia gama de pruebas eléctricas, soportados…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchCatu, BrazilHQ recorded Nov 6, 202651-20085 contacts →

Exact match

“Soluções completas em engenharia elétrica, automação, montagem de subestações, SPDA e painéis industriais.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchConverse, TX, United StatesHQ recorded Nov 6, 202651-20064 contacts →

Exact match

“WELCOME Power Engineering Services is an Accredited, Full-Member of the International Electrical Testing Association (NETA), and a Registered Engineering Firm in 46 states.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Nov 6, 202651-20062 contacts →

Exact match

“Borrell Electric Co, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPiracicaba, BrazilHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“Instalações elétricas / Manutenção elétrica / Projetos elétricos / Análises e Ensaios / SPDA / Termografia / Retrofit / Montagens industriais / Automação / Treinamentos”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchManchester, United KingdomHQ recorded Nov 6, 202651-20050 contacts →

Exact match

“Monitra (formerly HVPD) are experts in the field of Partial Discharge (PD) testing and monitoring of Medium Voltage and High Voltage electrical equipment, which can be performed…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchLima, PeruHQ recorded Nov 6, 202651-20049 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPanamaHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“ETS is a Panamanian capital engineering company, funded in 1986.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDurham, CT, United StatesHQ recorded Nov 6, 202651-20041 contacts →

Exact match

“EPST is a NETA Certified, Independent Electrical Testing & Engineering Organization.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTerrebonne, QC, CanadaHQ recorded Nov 6, 202651-20040 contacts →

Exact match

“MDL Énergie inc, une compagnie IPS, est un groupe d’ingénieurs et de techniciens bénéficiant d’une expertise dans les services en électrotechnique.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCharlotte, NC, United StatesHQ recorded Nov 6, 202611-5040 contacts →

Exact match

“A&W Electric is driven to provide growth opportunities for our associates and to create value for our clients in the industrial, commercial, and utility sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTickfaw, LA, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“At Titan we are dedicated to keeping linemen safe through quality work and excellent customer service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchIndianapolis, IN, United StatesHQ recorded Nov 6, 202651-20039 contacts →

Exact match

“The talented Field engineers at HIVOLT Advanced provide electrical testing and commissioning services in a safe and reliable manner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSouthampton, United KingdomHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“COMPANY OVERVIEW Based near Southampton, Intersafe are compliance specialists providing a range of electrical testing services for large, commercial sites.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,696 electrical fault detection services worldwide

See the full list, filter by size, metro and specialty, and access 3,578 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical fault detection services worldwide at a glance

As of Nov 6, 2026
17.6%Verified-email coverage
5.5Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
2,467
11-50
842
51-200
138
201-500
27
501-1,000
4
1,001-5,000
4
5,001-10,000
1
10001+
1

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 fault detection services are linked below.
What qualifies
Company records worldwide whose business descriptions match “electrical fault detection services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 3,578 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 fault detection services by location

11 lists · largest first

Every Electrical fault detection services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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

How many electrical fault detection services are there worldwide?

RevenueBase identified 3,696 company matches for electrical fault detection services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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 fault detection services?

The United Kingdom leads with 1,094 companies, followed by the United States (690) and Australia (222). Every electrical fault detection services list by country and city is linked on this page.

Which city has the most electrical fault detection services?

London leads with 98 company records, followed by Sao Paulo (19) and Bristol (15).

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 3,578 professional contacts with verified work emails tracked across these 3,696 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.

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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.