Company lists · Data refreshed September 2026

Top 25 Electrical transformer companies worldwide

Name: Electrical transformer companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 6,530 companies tracked

RevenueBase identified 6,530 electrical transformer companies worldwide as of September 2026 and tracks 205,456 professional contacts across them, including 55,462 with verified work emails. India is the largest market and Pune the largest hub.

This list covers electrical transformer companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for electrical transformer companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

6,530Companies

205,456Contacts tracked

55,462Verified emails

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The 25 largest electrical transformer companies worldwide

Ranked by team size

Top 25 of 6,530 electrical transformer companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical transformer companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Hitachi Energy	Indirect evidence	Zurich, SwitzerlandHQ checked Sep 19, 2026	10001+	30,256 contacts →
	Indirect evidence “Hitachi Energy is a global technology leader in electrification, powering a sustainable energy future with innovative power grid technologies with digital at the core.” Source: RevenueBase Database · checked Sep 19, 2026
2	Schweitzer Engineering Laboratories SEL	Partial evidence	Pullman, WA, United StatesHQ checked Sep 19, 2026	5,001-10,000	6,489 contacts →
	Partial evidence “SEL is a globally recognized designer and manufacturer of products and solutions that make electric power safer, more reliable, and more economical.” Source: RevenueBase Database · checked Sep 19, 2026
3	Nexans	Indirect evidence	Courbevoie, FranceHQ checked Sep 19, 2026	10001+	6,409 contacts →
	Indirect evidence “For over a century, Nexans has played a crucial role in the electrification of the planet and is committed to electrifying the future.” Source: RevenueBase Database · checked Sep 19, 2026
4	CG Power And Industrial Solutions Limited	Indirect evidence	Mumbai, IndiaHQ checked Sep 19, 2026	1,001-5,000	4,609 contacts →
	Indirect evidence “CG Power and Industrial Solutions Limited is an engineering conglomerate headquartered in Mumbai, India.” Source: RevenueBase Database · checked Sep 19, 2026
5	Littelfuse	Partial evidence	Rosemont, IL, United StatesHQ checked Sep 19, 2026	10001+	4,259 contacts →
	Partial evidence “Littelfuse, Inc.(NASDAQ: LFUS) is a diversified, industrial technology manufacturing company shaping solutions for the safe and efficient transfer of electrical energy.” Source: RevenueBase Database · checked Sep 19, 2026
6	Hubbell Incorporated	Partial evidence	Shelton, CT, United StatesHQ checked Sep 19, 2026	10001+	4,053 contacts →
	Partial evidence “Hubbell Incorporated is a leading manufacturer of utility and electrical solutions that help build more reliable, resilient, and renewable energy infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
7	C&s Electric LTD	Indirect evidence	New Delhi, IndiaHQ checked Sep 19, 2026	5,001-10,000	2,773 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
8	Powell	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,561 contacts →
	Indirect evidence “Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.” Source: RevenueBase Database · checked Sep 19, 2026
9	Prolec Energy	Indirect evidence	Apodaca, MexicoHQ checked Sep 19, 2026	5,001-10,000	2,322 contacts →
	Indirect evidence “Prolec has more than fifty years of experience in the creation of comprehensive solutions to meet the needs of power generation, transmission, and distribution.” Source: RevenueBase Database · checked Sep 19, 2026
10	Electrical Components International	Partial evidence	Southfield, MI, United StatesHQ checked Sep 19, 2026	10001+	2,200 contacts →
	Partial evidence “Founded in 1953, Electrical Components International (ECI) is one of the world’s leading suppliers of electrical distribution systems, control box assemblies, and other critical…” Source: RevenueBase Database · checked Sep 19, 2026
11	Atkore	Partial evidence	Harvey, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,595 contacts →
	Partial evidence “Atkore is a leading manufacturer of electrical products for commercial, industrial, data center, telecommunications, and solar applications.” Source: RevenueBase Database · checked Sep 19, 2026
12	Lucy Electric	Partial evidence	Thame, United KingdomHQ checked Sep 19, 2026	1,001-5,000	1,238 contacts →
	Partial evidence “Lucy Electric is a leader in secondary power distribution solutions with over 100 years’ industry experience.” Source: RevenueBase Database · checked Sep 19, 2026
13	Nidec Conversion	Partial evidence	Cinisello Balsamo, ItalyHQ checked Sep 19, 2026	1,001-5,000	1,180 contacts →
	Partial evidence “Nidec Conversion is a Business Unit of Nidec Corporation, a global Japanese manufacturer and distributor of electric motors with employees and plants/offices in +40 countries in…” Source: RevenueBase Database · checked Sep 19, 2026
14	Bharat Bijlee LTD	Partial evidence	Mumbai, IndiaHQ checked Sep 19, 2026	1,001-5,000	1,144 contacts →
	Partial evidence “Bharat Bijlee is a public-listed electrical engineering company headquartered in Mumbai, India.” Source: RevenueBase Database · checked Sep 19, 2026
15	Hubbell Power Systems	Partial evidence	Columbia, SC, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,079 contacts →
	Partial evidence “Hubbell Power Systems (HPS) designs and manufactures a wide variety of electric power transmission, distribution, substation, underground, OEM, and communications products used by…” Source: RevenueBase Database · checked Sep 19, 2026
16	Maschinenfabrik Reinhausen	Indirect evidence	Regensburg, GermanyHQ checked Sep 19, 2026	1,001-5,000	1,052 contacts →
	Indirect evidence “MR: THE POWER BEHIND POWER We at MR have been writing our success story in the world of energy technology for more than 150 years.” Source: RevenueBase Database · checked Sep 19, 2026
17	Sudhir Power LTD	Partial evidence	Gurugram, IndiaHQ checked Sep 19, 2026	1,001-5,000	1,036 contacts →
	Partial evidence “Sudhir Power Limited, established in 1973, is a leader in Diesel Gensets, Transformers, PSS, HT & LT panels, and Equipment rental services.” Source: RevenueBase Database · checked Sep 19, 2026
18	Ormazabal	Partial evidence	Derio, SpainHQ checked Sep 19, 2026	1,001-5,000	1,014 contacts →
	Partial evidence “We are experts in customized and high-tech electrical solutions for your challenges At Ormazabal we design and manufacture solutions aimed at digitalizing the electrical grid to…” Source: RevenueBase Database · checked Sep 19, 2026
19	Arteche	Strong evidence	Mungia, SpainHQ checked Sep 19, 2026	1,001-5,000	993 contacts →
	Strong evidence “The Arteche Group, with 75 years of experience in the electric power industry, offers high-tech solutions and equipment, with a complete range of instrument transformers…” Source: RevenueBase Database · checked Sep 19, 2026
20	Industrial Electric Mfg. IEM	Partial evidence	Fremont, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	969 contacts →
	Partial evidence “Industrial Electric Mfg.(IEM) is the largest independent full-line manufacturer of electrical distribution equipment and integrated power systems in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026
21	Mitsubishi Electric Power Products, INC	Partial evidence	Warrendale, PA, United StatesHQ checked Sep 19, 2026	1,001-5,000	967 contacts →
	Partial evidence “Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Source: RevenueBase Database · checked Sep 19, 2026
22	Howard Industries	Partial evidence	Ellisville, MS, United StatesHQ checked Sep 19, 2026	1,001-5,000	941 contacts →
	Partial evidence “Howard Industries is the leading manufacturer of liquid-filled distribution transformers for the utility and commercial/industrial markets.” Source: RevenueBase Database · checked Sep 19, 2026
23	SAE Towers	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	928 contacts →
	Indirect evidence “SAE Towers is one of the world’s largest producers of steel lattice towers for high-voltage power transmission.” Source: RevenueBase Database · checked Sep 19, 2026
24	Vijai Electricals Limited, Hyderabad	Partial evidence	Hyderabad, IndiaHQ checked Sep 19, 2026	5,001-10,000	920 contacts →
	Partial evidence “Vijai Electricals Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
25	Electrical Consultants, INC	Partial evidence	Billings, MT, United StatesHQ checked Sep 19, 2026	1,001-5,000	890 contacts →
	Partial evidence “Electrical Consultants, Inc.(ECI) is an employee-owned, national provider of high voltage transmission, substation, and distribution solutions.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: electrical transformer companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names electrical transformer companies.
Partial evidence: Its own public description names part of electrical transformer companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical transformer companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 6,530 electrical transformer companies worldwide

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Electrical transformer companies worldwide at a glance

As of Sep 19, 2026

27.0%Verified-email coverage

31.5Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Pune

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,665

11-50

2,231

51-200

1,552

201-500

558

501-1,000

236

1,001-5,000

192

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among electrical transformer companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for electrical transformer companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “electrical transformer companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names electrical transformer companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among electrical transformer companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 55,462 across the full list. 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 September 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Electrical transformer companies by location

28 lists · largest first

Every Electrical transformer companies 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names electrical transformer companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many electrical transformer companies are there worldwide?

RevenueBase identified 6,530 electrical transformer companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Hitachi Energy, headquartered in Zurich, tops this list with the largest team on record.

Which country has the most electrical transformer companies?

India leads with 1,271 companies, followed by the United States (616) and Brazil (331). Every electrical transformer companies list by country and city is linked on this page.

Which city has the most electrical transformer companies?

Pune leads with 71 headquartered companies, followed by Vadodara (66) and Bangalore (65).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 55,462 verified decision-maker contacts tracked across these 6,530 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.