Company lists · Data refreshed November 2026

Top 25 Transformer installation contractors worldwide

Name: Transformer installation contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 14,202 companies tracked

RevenueBase identified 14,202 company matches for transformer installation contractors worldwide as of November 2026 and tracks 167,860 professional contacts across them, including 39,488 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for transformer installation 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 November 6, 2026. Country and city lists for transformer installation 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 Nov 6, 2026 How this list was built

14,202Companies

167,860Contacts tracked

39,488Verified emails

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The 25 largest transformer installation contractors worldwide

Ranked by team size

Top 25 of 14,202 company matches for transformer installation contractors 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Engelmig Energia	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,929 contacts →
	Exact match “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Dashiell Corporation	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,087 contacts →
	Exact match “Dashiell is a leading national provider of technical services to the electric utility, power generation, industrial, renewable and energy industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Sudhir Power LTD	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,077 contacts →
	Exact match “Sudhir Power Limited, established in 1973, is a leader in Diesel Gensets, Transformers, PSS, HT & LT panels, and Equipment rental services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Mitsubishi Electric Power Products, INC	Exact match	Warrendale, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,037 contacts →
	Exact match “Mitsubishi Electric Power Products, Inc.(MEPPI) is a leading U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Vijai Electricals Limited, Hyderabad	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	5,001-10,000	952 contacts →
	Exact match “Vijai Electricals Ltd.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Virginia Transformer Corp	Exact match	Roanoke, United StatesHQ recorded Nov 6, 2026	5,001-10,000	915 contacts →
	Exact match “Virginia Transformer is an engineering company that manufactures transformers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Linxon	Exact match	Baden, NC, SwitzerlandHQ recorded Nov 6, 2026	1,001-5,000	891 contacts →
	Exact match “Delivering power grid Infrastructure that people rely on.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Elec-Tech Electrical Contractors	Exact match	Long Beach, CA, United StatesHQ recorded Nov 6, 2026	n/a	787 contacts →
	Exact match “WELCOME TO OUR WEBSITE!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Best Transformer	Exact match	Balıkesir, TürkiyeHQ recorded Nov 6, 2026	1,001-5,000	786 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
10	AL Ahleia Switchgear Co. Kscc	Exact match	Sabhan, KuwaitHQ recorded Nov 6, 2026	1,001-5,000	758 contacts →
	Exact match “Established in 1982 by Sayed Hamid Behbehani & Sons, Kuwait.* First Kuwaiti company to be awarded with ISO 9001 back in 1995 by DNV.* Company certified for ISO/TS 29001:2010…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Comfica Soluciones Integrales S.L	Exact match	Fuenlabrada, SpainHQ recorded Nov 6, 2026	201-500	755 contacts →
	Exact match “Empresa especializada en la ingenieria, desarrollo, construccion, instalación, y puesta en marcha de instalaciones de telecomunicaciones, electricidad, señalización, redes de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Prism Electric	Exact match	Garland, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	752 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 · Nov 6, 2026 · View company records in RevenueBase
13	Prime Electric	Exact match	Bellevue, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	724 contacts →
	Exact match “For over a quarter century, Prime has been successfully engineering, constructing building, and facilities solutions for our clientele.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Dycom Industries, INC	Exact match	West Palm Beach, FL, United StatesHQ recorded Nov 6, 2026	10001+	706 contacts →
	Exact match “Dycom (NYSE: DY) is on a mission to connect America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Cache Valley Electric	Exact match	Logan, UT, United StatesHQ recorded Nov 6, 2026	1,001-5,000	691 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 · Nov 6, 2026 · View company records in RevenueBase
16	Bajel Projects LTD	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	501-1,000	686 contacts →
	Exact match “Bajel Projects Limited is a leading company in the business of power infrastructure, with a strong presence in the Power Transmission and Power Distribution sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	M. J. Electric, LLC	Exact match	Iron Mountain, NH, United StatesHQ recorded Nov 6, 2026	1,001-5,000	685 contacts →
	Exact match “M.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Electric Power Systems	Exact match	Maryland Heights, MI, United StatesHQ recorded Nov 6, 2026	501-1,000	678 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
19	Temon Técnica DE Montagens E Construções	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	664 contacts →
	Exact match “Desde 1978 atuando na execução de Instalações Elétricas e Hidráulicas, a Temon conseguiu firmar sua marca nesse mercado com participação em mais de obras por todo Brasil e…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	PAR Electrical Contractors, LLC	Exact match	Kansas City, MO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	650 contacts →
	Exact match “PAR, a Quanta Services company, offers a full range of construction services for substations, overhead and underground distribution and transmission lines, engineering, design…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	OWL Services	Exact match	Irving, TX, United StatesHQ recorded Nov 6, 2026	1,001-5,000	634 contacts →
	Exact match “OWL™ Services is the premier sales, installation, program management, compliance and service provider to industrial, commercial fleet, municipal and electrical vehicle charging…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Alterman, INC	Exact match	Live Oak, TX, United StatesHQ recorded Nov 6, 2026	501-1,000	632 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 · Nov 6, 2026 · View company records in RevenueBase
23	Transformers & Rectifiers India LTD	Exact match	Ahmedabad, IndiaHQ recorded Nov 6, 2026	1,001-5,000	632 contacts →
	Exact match “Transformer & Rectifier (India) Limited (TARIL) is one of India’s leading transformer manufacturers, with over four decades of engineering excellence and a strong global presence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	CSI Electrical Contractors, INC	Exact match	Santa Fe Springs, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	595 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 · Nov 6, 2026 · View company records in RevenueBase
25	Resa Power	Exact match	Houston, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	590 contacts →
	Exact match “RESA Power is your ONE-STOP for all of your power needs.” Recorded in the RevenueBase company graph · Nov 6, 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 “transformer installation 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 14,202 transformer installation contractors worldwide

See the full list, filter by size, metro and specialty, and access 39,488 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transformer installation contractors worldwide at a glance

As of Nov 6, 2026

23.5%Verified-email coverage

11.8Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,939

11-50

5,210

51-200

1,941

201-500

468

501-1,000

164

1,001-5,000

111

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 transformer installation contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “transformer installation 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 39,488 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.

Transformer installation contractors by location

40 lists · largest first

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

How many transformer installation contractors are there worldwide?

RevenueBase identified 14,202 company matches for transformer installation contractors 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?

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

Which country has the most transformer installation contractors?

The United States leads with 3,877 companies, followed by India (949) and the United Kingdom (817). Every transformer installation contractors list by country and city is linked on this page.

Which city has the most transformer installation contractors?

Sao Paulo leads with 85 company records, followed by Houston (72) and Bangalore (50).

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 39,488 professional contacts with verified work emails tracked across these 14,202 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.