Company lists · Data refreshed October 2026

Top 25 Electrical testing contractors worldwide

Name: Electrical testing contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 18,932 companies tracked

RevenueBase identified 18,932 company matches for electrical testing contractors worldwide as of October 2026 and tracks 273,298 professional contacts across them, including 68,953 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for electrical testing 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 12, 2026. Country and city lists for electrical testing 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 12, 2026 How this list was built

18,932Companies

273,298Contacts tracked

68,953Verified emails

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The 25 largest electrical testing contractors worldwide

Ranked by team size

Top 25 of 18,932 company matches for electrical testing contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	SGS	Exact match	Baar, SwitzerlandHQ recorded Oct 12, 2026	10001+	63,840 contacts →
	Exact match “SGS is the world’s leading Testing, Inspection and Certification company.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	UL Solutions	Exact match	Northbrook, IL, United StatesHQ recorded Oct 12, 2026	10001+	12,880 contacts →
	Exact match “A global leader in applied safety science, UL Solutions (NYSE: ULS) transforms safety, security and sustainability challenges into opportunities for customers in more than 110…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Applus	Exact match	Madrid, SpainHQ recorded Oct 12, 2026	10001+	7,065 contacts →
	Exact match “Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Socotec	Exact match	Guyancourt, FranceHQ recorded Oct 12, 2026	10001+	6,034 contacts →
	Exact match “SOCOTEC ranks in the Top 10 Best Workplaces® 2025 (category:>2500 employees) and is once again certified Great Place to Work® in 2025, across 18 countries!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Element Materials Technology	Exact match	London, United KingdomHQ recorded Oct 12, 2026	5,001-10,000	4,423 contacts →
	Exact match “The Element Materials Technology Group is one of the world’s leading global providers of testing, inspection, and certification services for a diverse range of products…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Oct 12, 2026	5,001-10,000	2,661 contacts →
	Exact match “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	TUV India Pvt. LTD	Exact match	Mumbai, IndiaHQ recorded Oct 12, 2026	1,001-5,000	2,262 contacts →
	Exact match “TUV India Pvt.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Kinectrics	Exact match	Toronto, ON, CanadaHQ recorded Oct 12, 2026	1,001-5,000	1,339 contacts →
	Exact match “Kinectrics is an integrated lifecycle management services company providing testing, inspection, certification and engineering consulting for the electric power generation…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Shermco Industries	Exact match	Irving, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	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 12, 2026 · View company records in RevenueBase
10	Force Technology	Exact match	Brøndby, DenmarkHQ recorded Oct 12, 2026	1,001-5,000	1,074 contacts →
	Exact match “Force Technology is a technology consultancy and service company which strives to create positive technological change and make the world more sustainable and safer.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	TÜV Rheinland Middle East	Exact match	Saudi Arabia, United Arab EmiratesHQ recorded Oct 12, 2026	10001+	1,013 contacts →
	Exact match “150 years of making the world a safer place: TÜV Rheinland is one of the world's leading providers of testing and inspection services, with annual revenues of over 2.7 billion…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Applied Technical Services, LLC	Exact match	Marietta, GA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	922 contacts →
	Exact match “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Omicron Electronics	Exact match	Klaus, FranceHQ recorded Oct 12, 2026	1,001-5,000	910 contacts →
	Exact match “OMICRON is an international company that works passionately on ideas for making electric power systems safe and reliable.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Socotec UK & Ireland	Exact match	Burton Upon Trent, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	898 contacts →
	Exact match “SOCOTEC UK is a network of industry-leading experts we empower ambitious businesses at every stage of the asset lifecycle.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Oct 12, 2026	n/a	778 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	British Engineering Services Group	Exact match	Warrington, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	775 contacts →
	Exact match “Testing, inspection, certification and compliance is our core business so that’s what gets 100% of our focus.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Prism Electric	Exact match	Garland, TX, United StatesHQ recorded Oct 12, 2026	1,001-5,000	717 contacts →
	Exact match “Our story began in 1994 with a simple vision: Build a company that does things right.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Kiwa Suomi	Exact match	Helsinki, FinlandHQ recorded Oct 12, 2026	10001+	683 contacts →
	Exact match “Kiwa on yksi maailman johtavista asiantuntijoista turvallisuudessa, laadussa ja luotettavuudessa.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Electric Power Systems	Exact match	Maryland Heights, MO, United StatesHQ recorded Oct 12, 2026	501-1,000	666 contacts →
	Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Cache Valley Electric	Exact match	Logan, UT, United StatesHQ recorded Oct 12, 2026	1,001-5,000	662 contacts →
	Exact match “As one of the nation’s premier electrical contractors, we don’t just provide high-quality services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Oceaneering Asset Integrity	Exact match	Bergen, NorwayHQ recorded Oct 12, 2026	5,001-10,000	630 contacts →
	Exact match “Oceaneering Asset Integrity is one of the largest providers of Integrity and Inspection Services in the world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Oct 12, 2026	501-1,000	615 contacts →
	Exact match “Since 1923, Alterman has provided electrical construction on many of San Antonio and Austin's most impressive landmarks and contemporary structures.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	Cesi SPA	Exact match	Milan, ItalyHQ recorded Oct 12, 2026	501-1,000	613 contacts →
	Exact match “CESI is a leading global engineering and consulting company specializing in innovation, digitization, and testing for the electric power sector.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Setsco Services PTE LTD	Exact match	SingaporeHQ recorded Oct 12, 2026	501-1,000	590 contacts →
	Exact match “With 40 years of extensive experience, Setsco Services Pte Ltd is one of Singapore’s largest test and inspection companies accredited by the Singapore Accreditation Council –…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	CSI Electrical Contractors, INC	Exact match	Santa Fe Springs, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	585 contacts →
	Exact match “Founded in 1990, CSI has become a leader in highly technical and innovative electrical design and construction.” Recorded in the RevenueBase company graph · Oct 12, 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 testing 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 18,932 electrical testing contractors worldwide

See the full list, filter by size, metro and specialty, and access 68,953 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical testing contractors worldwide at a glance

As of Oct 12, 2026

25.2%Verified-email coverage

14.4Average contacts per company

1-10Median size (employees)

1.1%Largest-city concentration · London

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

10,405

11-50

5,915

51-200

1,753

201-500

386

501-1,000

1,001-5,000

5,001-10,000

10001+

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 testing contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “electrical testing 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 68,953 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 12, 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 testing contractors by location

52 lists · largest first

Every Electrical testing contractors 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 testing contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical testing contractors are there worldwide?

RevenueBase identified 18,932 company matches for electrical testing 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?

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

Which country has the most electrical testing contractors?

The United States leads with 5,510 companies, followed by the United Kingdom (3,243) and Australia (1,010). Every electrical testing contractors list by country and city is linked on this page.

Which city has the most electrical testing contractors?

London leads with 205 company records, followed by Houston (92) and Sao Paulo (70).

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 68,953 professional contacts with verified work emails tracked across these 18,932 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 12, 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.