Company lists · Data refreshed November 2026

Top 25 Transformer insulators suppliers worldwide

RevenueBase identified 1,470 company matches for transformer insulators suppliers worldwide as of November 2026 and tracks 25,740 professional contacts across them, including 5,245 with verified work emails. India is the largest market and Bangalore the largest hub.

This list covers company matches for transformer insulators suppliers 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 2, 2026. Country and city lists for transformer insulators suppliers 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 2, 2026 How this list was built
1,470Companies
25,740Contacts tracked
5,245Verified emails
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The 25 largest transformer insulators suppliers worldwide

Ranked by team size
Top 25 of 1,470 company matches for transformer insulators suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 2, 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 matchFort Mill, SC, United StatesHQ recorded Nov 2, 20261,001-5,000982 contacts →

Exact match

“MacLean Power Systems (MPS), headquartered in Fort Mill, SC, is LEADING THE WAY™ in delivering innovative, reliable, and resilient solutions for the electric utility…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
2Exact matchHyderabad, IndiaHQ recorded Nov 2, 20265,001-10,000952 contacts →

Exact match

“Vijai Electricals Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
3Exact matchBalıkesir, TürkiyeHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
4Exact matchBerlin, ON, GermanyHQ recorded Nov 2, 20261,001-5,000752 contacts →

Exact match

“As Trench Group, we are sage and VISIONARY INNOMAKERS leading the sustainable transformation of the electric power industry.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
5Exact matchWinterbach, FranceHQ recorded Nov 2, 20261,001-5,000606 contacts →

Exact match

“PFISTERER is a globally leading and independent technology company with head offices in Winterbach near Stuttgart, Germany.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
6Exact matchNijmegen, NetherlandsHQ recorded Nov 2, 2026501-1,000466 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
7Exact matchBasiskele, TürkiyeHQ recorded Nov 2, 20261,001-5,000460 contacts →

Exact match

“ENPAY is the Pace-Setter of Transformer Industry serving to its customers from its 4 Plants Worldwide.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
8Exact matchWesel, GermanyHQ recorded Nov 2, 20261,001-5,000419 contacts →

Exact match

“Please note that this account is no longer being actively managed.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
9Exact matchRegensburg, OH, GermanyHQ recorded Nov 2, 20261,001-5,000324 contacts →

Exact match

“Welcome to the SGB-SMIT Group, the pure-play transformer specialist from Europe with the highest customer dedication.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
10Exact matchGreer, ID, United StatesHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
11Exact matchTürkiyeHQ recorded Nov 2, 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 2, 2026 · View company records in RevenueBase
12Exact matchWiener Neudorf, PA, MexicoHQ recorded Nov 2, 20261,001-5,000287 contacts →

Exact match

“ISOVOLTA Group is a leading international manufacturer of electrical insulating materials, technical laminates and composites and maintains a global presence.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
13Exact matchCuiabá, BrazilHQ recorded Nov 2, 20261,001-5,000274 contacts →

Exact match

“A TRAEL iniciou suas atividades em 1992 com a fabricação de transformadores de distribuição, força e especiais.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
14Exact matchAbu Road, IndiaHQ recorded Nov 2, 20261,001-5,000263 contacts →

Exact match

“Modern Insulators ltd is India’s largest manufacturer and exporter of equipment porcelain insulators, working closely with OEMs, Indian Railways, National and Regional Utilities…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
15Exact matchCentral Jakarta, IndonesiaHQ recorded Nov 2, 2026501-1,000258 contacts →

Exact match

“PT.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
16Exact matchCourbevoie, QC, FranceHQ recorded Nov 2, 2026501-1,000233 contacts →

Exact match

“For 75 years Sediver has specialized in overhead line insulation technology - research, design, manufacturing, testing and supply of insulators for AC and DC applications designed…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
17Exact matchBangalore, IndiaHQ recorded Nov 2, 2026501-1,000228 contacts →

Exact match

“Manufacturer & Exporter of LV & MV Current, Voltage Transformers(up to 33kV), Dry Type Control & Power Transformer(up to Oil Cooled Distribution Transformers(up to 33kV Special…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
18Exact matchBusto Arsizio, ItalyHQ recorded Nov 2, 2026201-500217 contacts →

Exact match

“At TMC Transformers SpA, we blend tradition with innovation to produce highly engineered Dry Type Transformers in Cast Resin or VPI technology.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
19Exact matchMontgomery, AL, United StatesHQ recorded Nov 2, 2026201-500212 contacts →

Exact match

“HD Hyundai Power Transformers USA, Inc, a subsidiary of HD Hyundai Electric Systems, stands as a premier transformer manufacturer located in Montgomery, Alabama.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
20Exact matchSao Paulo, BrazilHQ recorded Nov 2, 2026201-500198 contacts →

Exact match

“Maurizio, fundada em 1956, consolidou-se como referência na fabricação de equipamentos de alta tensão para linhas de Distribuição, Transmissão, Subestação e Smart Grids.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
21Exact matchChennai, IndiaHQ recorded Nov 2, 2026201-500172 contacts →

Exact match

“GK EXPERTISE is a Leading Manufacture in Transmission & Distribution Equipment of Power Transformer, Current Transformer, OLTC, Control & Relay Panels, MV Switchgears, Lighting…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
22Exact matchHamburg, GermanyHQ recorded Nov 2, 2026501-1,000167 contacts →

Exact match

“RITZ is one of the world´s leading specialists for Instrument Transformers, Cast Resin Applications and Cast Resin Insulated Busbar Systems.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
23Exact matchVadodara, IndiaHQ recorded Nov 2, 202651-200167 contacts →

Exact match

“Yash Highvoltage Ltd.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
24Exact matchMontichiari, ItalyHQ recorded Nov 2, 2026501-1,000157 contacts →

Exact match

“Gruppo Bonomi was founded in Lumezzane in 1928 as a foundry of non-ferrous alloys and expands its production over the years thanks to the acquisition of brands such as Rebosio…”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase
25Exact matchItu, BrazilHQ recorded Nov 2, 2026201-500153 contacts →

Exact match

“ISOLET is a company based out of Rod.”

Recorded in the RevenueBase company graph · Nov 2, 2026 · View company records in RevenueBase

Showing 25 of 1,470 transformer insulators suppliers worldwide

See the full list, filter by size, metro and specialty, and access 5,245 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer insulators suppliers worldwide at a glance

As of Nov 2, 2026
20.4%Verified-email coverage
17.5Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · Bangalore
Nov 2, 2026Page data refreshed

Companies by employee count

1-10
329
11-50
438
51-200
413
201-500
159
501-1,000
51
1,001-5,000
46
5,001-10,000
2
10001+
3

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 transformer insulators suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “transformer insulators suppliers” 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 5,245 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 2, 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.

Transformer insulators suppliers by location

8 lists · largest first

Every Transformer insulators suppliers 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 “transformer insulators suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transformer insulators suppliers are there worldwide?

RevenueBase identified 1,470 company matches for transformer insulators suppliers 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?

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

Which country has the most transformer insulators suppliers?

India leads with 437 companies, followed by the United States (113) and Brazil (67). Every transformer insulators suppliers list by country and city is linked on this page.

Which city has the most transformer insulators suppliers?

Bangalore leads with 31 company records, followed by Vadodara (31) and Hyderabad (25).

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 5,245 professional contacts with verified work emails tracked across these 1,470 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 2, 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.