Company lists · Data refreshed November 2026

Top 25 Power transformer testing services worldwide

RevenueBase identified 2,603 company matches for power transformer testing services worldwide as of November 2026 and tracks 43,037 professional contacts across them, including 11,185 with verified work emails. India is the largest market and Vadodara the largest hub.

This list covers company matches for power transformer testing 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 power transformer testing 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
2,603Companies
43,037Contacts tracked
11,185Verified emails
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The 25 largest power transformer testing services worldwide

Ranked by team size
Top 25 of 2,603 company matches for power transformer testing 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 matchToronto, ON, CanadaHQ recorded Nov 6, 20261,001-5,0001,395 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 · Nov 6, 2026 · View company records in RevenueBase
2Exact 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
3Exact matchDover, United KingdomHQ recorded Nov 6, 20261,001-5,0001,198 contacts →

Exact match

“Megger supports the people who keep essential services running.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchKlaus, FranceHQ recorded Nov 6, 20261,001-5,000937 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchBalıkesir, TürkiyeHQ recorded Nov 6, 20261,001-5,000786 contacts →

Exact match

“BEST Transformer, founded in 1966 in Balıkesir, produces oil-immersed distribution transformers, power transformers, cast resin dry-type transformers, reactors, and mechanical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact matchMilan, ItalyHQ recorded Nov 6, 2026501-1,000637 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 · Nov 6, 2026 · View company records in RevenueBase
9Exact matchVadodara, IndiaHQ recorded Nov 6, 2026501-1,000508 contacts →

Exact match

“Voltamp Transformers Limited is a Oil filled Power, Distribution and Dry type Transformer manufacturing company based in Vadodara, Gujarat State in India since year 1967.The…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchNijmegen, NetherlandsHQ recorded Nov 6, 2026501-1,000466 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSurrey, BC, CanadaHQ recorded Nov 6, 2026201-500462 contacts →

Exact match

“One of the largest testing and research labs in North America, Powertech is home to a broad range of scientists, engineers, and technical specialists from around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMontevideo, UruguayHQ recorded Nov 6, 2026501-1,000431 contacts →

Exact match

“Empresa de Ingeniería y Servicios en el area de la Ingenieria Electrica e Industrial.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchViña Del Mar, ChileHQ recorded Nov 6, 2026501-1,000394 contacts →

Exact match

“RHONA nace de la unión de dos empresas de ingeniería, cuyos inicios se remontan a 1943.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchTomball, TX, United StatesHQ recorded Nov 6, 20265,001-10,000366 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchGreer, ID, United StatesHQ recorded Nov 6, 2026201-500311 contacts →

Exact match

“Maddox serves the commercial, industrial, utility, and renewables segments of the transformer market.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchTürkiyeHQ recorded Nov 6, 2026501-1,000303 contacts →

Exact match

“We are proud to announce that in this year, our new production facility equipped with the best, modern machines and equipment at m² open area, was started the production with…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchTizayuca, MexicoHQ recorded Nov 6, 20261,001-5,000301 contacts →

Exact match

“En VOLTRAN, nuestros equipos de Ingenieros y Técnicos, trabajan bajo los estándares más estrictos de calidad para diseñar, fabricar, reparar y poner en operación transformadores…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHuntersville, GA, United StatesHQ recorded Nov 6, 2026201-500299 contacts →

Exact match

“Structural Integrity Associates is the most-trusted provider of proven engineering services for the energy and process industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchGlen Waverley, AustraliaHQ recorded Nov 6, 2026501-1,000295 contacts →

Exact match

“THE TRANSFORMER SOLUTION SPECIALIST Established in 1933 with a proud history, Wilson Transformer Company is a leading specialist in the delivery of transformer solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNavi Mumbai, IndiaHQ recorded Nov 6, 2026201-500265 contacts →

Exact match

“We are a leading manufacturer of power transformers and other electronics.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchDurban, South AfricaHQ recorded Nov 6, 2026201-500244 contacts →

Exact match

“WearCheck, is Africa’s pre-eminent condition monitoring services provider, with 16 world class laboratories and 19 offices in nine countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchZagreb, CroatiaHQ recorded Nov 6, 2026501-1,000229 contacts →

Exact match

“KONČAR - Distribution & Special Transformers Inc.(KONČAR-D & ST), as a / regional leader in production of distribution, medium power and special transformers up to 160 MVA and 170…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchCórdoba, ArgentinaHQ recorded Nov 6, 2026201-500229 contacts →

Exact match

“More than 50 years of experience in the design and manufacture of power and distribution transformers under ANSI and IEC international standards.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBragança Paulista, BrazilHQ recorded Nov 6, 2026201-500229 contacts →

Exact match

“We have been in the market for over 20 years serving the main industrial and commercial markets, gaining prominent positions in the segments of Engineering, Commissioning of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIndianapolis, United StatesHQ recorded Nov 6, 2026201-500220 contacts →

Exact match

“POLARIS Laboratories® can help you prevent maintenance failure.”

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

Showing 25 of 2,603 power transformer testing services worldwide

See the full list, filter by size, metro and specialty, and access 11,185 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Power transformer testing services worldwide at a glance

As of Nov 6, 2026
26.0%Verified-email coverage
16.5Average contacts per company
11-50Median size (employees)
1.2%Largest-city concentration · Vadodara
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
917
11-50
945
51-200
478
201-500
137
501-1,000
44
1,001-5,000
24
5,001-10,000
7
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 power transformer testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “power transformer testing 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 11,185 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.

Power transformer testing services by location

13 lists · largest first

Every Power transformer testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “power transformer testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many power transformer testing services are there worldwide?

RevenueBase identified 2,603 company matches for power transformer testing 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?

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

Which country has the most power transformer testing services?

India leads with 469 companies, followed by the United States (325) and Brazil (209). Every power transformer testing services list by country and city is linked on this page.

Which city has the most power transformer testing services?

Vadodara leads with 32 company records, followed by Bangalore (30) and Chennai (27).

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 11,185 professional contacts with verified work emails tracked across these 2,603 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.