Company lists · Data refreshed September 2026

Top 25 Electrical transmission contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 19,234 companies tracked

RevenueBase identified 19,234 electrical transmission contractors worldwide as of September 2026 and tracks 387,836 professional contacts across them, including 99,517 with verified work emails and 0 with mobile numbers. The United States is the largest market and Houston the largest hub.

This list covers electrical transmission contractors 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 16, 2026. Country and city lists for electrical transmission contractors 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 16, 2026 86% judged on-target in blind review

19,234Companies

387,836Contacts tracked

99,517Verified emails

0Mobile numbers

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The 25 largest electrical transmission contractors worldwide

Ranked by team size

Top 25 of 19,234 electrical transmission contractors worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrical transmission contractors: 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	KEC International LTD	Indirect evidence	Mumbai, IndiaHQ checked Sep 16, 2026	5,001-10,000	10,868 contacts →
	Indirect evidence “KEC International Limited, the flagship company of RPG Enterprises is a diversified global infrastructure Engineering, Procurement & Construction (EPC) major, with a presence in…” Source: RevenueBase Database · checked Sep 16, 2026
2	Power Grid Corporation Of India Limited	Partial evidence	Gurgaon, IndiaHQ checked Sep 16, 2026	5,001-10,000	5,997 contacts →
	Partial evidence “Power Grid Corporation of India Limited (POWERGRID), is a 'Maharatna' Company operating under Ministry of Power, is engaged in power transmission business.” Source: RevenueBase Database · checked Sep 16, 2026
3	Primoris Services Corporation	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	10001+	4,089 contacts →
	Indirect evidence “Primoris Services Corporation (NYSE: PRIM) is a leading provider of critical infrastructure services to the utility, energy, and renewables markets throughout the United States…” Source: RevenueBase Database · checked Sep 16, 2026
4	Hubbell Incorporated	Partial evidence	Shelton, CT, United StatesHQ checked Sep 16, 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 16, 2026
5	Circet	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	10001+	3,901 contacts →
	Indirect evidence “A global player in the telecom infrastructure services industry, the Circet Group provides operators, local authorities and key accounts throughout the world with an integrated…” Source: RevenueBase Database · checked Sep 16, 2026
6	Mastec Communications Group	Indirect evidence	Coral Gables, FL, United StatesHQ checked Sep 16, 2026	5,001-10,000	3,207 contacts →
	Indirect evidence “MasTec Communications Group (MCG) is a division of MasTec that provides comprehensive services and turnkey solutions for Telecom operators.” Source: RevenueBase Database · checked Sep 16, 2026
7	NKT	Indirect evidence	Copenhagen, DenmarkHQ checked Sep 16, 2026	5,001-10,000	2,931 contacts →
	Indirect evidence “NKT connects a greener world with high-quality power cable technology and plays a key role as the world moves towards clean energy.” Source: RevenueBase Database · checked Sep 16, 2026
8	Pearce Services	Indirect evidence	Paso Robles, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,620 contacts →
	Indirect evidence “PEARCE from CBRE is the largest national independent provider of outsourced repair, maintenance, and engineering services to critical infrastructure in the renewable energy, power…” Source: RevenueBase Database · checked Sep 16, 2026
9	IES Holdings	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	5,001-10,000	2,567 contacts →
	Partial evidence “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Source: RevenueBase Database · checked Sep 16, 2026
10	Edenor	Partial evidence	Buenos Aires, ArgentinaHQ checked Sep 16, 2026	1,001-5,000	2,531 contacts →
	Partial evidence “Somos la mayor distribuidora de energía eléctrica de la Argentina en términos de cantidad de clientes y electricidad vendida.” Source: RevenueBase Database · checked Sep 16, 2026
11	Tabocas Participações Empreendimentos S A	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 16, 2026	10001+	2,204 contacts →
	Indirect evidence “Fundada em abril de em Belo Horizonte (MG), a Tabocas é referência nacional na modalidade EPC Full, dentro dos setores de construção e engenharia civil, com foco de atuação na…” Source: RevenueBase Database · checked Sep 16, 2026
12	Pike Corporation	Indirect evidence	Mount Airy, NC, United StatesHQ checked Sep 16, 2026	10001+	2,082 contacts →
	Indirect evidence “The Pike family of companies is a leading provider of utilities solutions to over 300 investor-owned, municipal and cooperative utilities in the United States.” Source: RevenueBase Database · checked Sep 16, 2026
13	Areva T&d	Strong evidence	92084 Paris - La Défense, FranceHQ checked Sep 16, 2026	10001+	2,012 contacts →
	Strong evidence “One of the top three global players in the transmission and distribution of energy, AREVA T&D offers solutions to bring electricity from the source onto the power network.” Source: RevenueBase Database · checked Sep 16, 2026
14	Service Stream	Indirect evidence	Docklands, AustraliaHQ checked Sep 16, 2026	1,001-5,000	1,823 contacts →
	Indirect evidence “Service Stream plays a vital role, working with our clients in keeping communities connected to essential network services across Australia.” Source: RevenueBase Database · checked Sep 16, 2026
15	Engelmig Energia	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 16, 2026	5,001-10,000	1,818 contacts →
	Indirect evidence “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Source: RevenueBase Database · checked Sep 16, 2026
16	Henkels & Mccoy, INC	Indirect evidence	Blue Bell, PA, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,813 contacts →
	Indirect evidence “Henkels & McCoy, Inc.(H&M) is a leading utility construction firm providing critical infrastructure for the power, oil & gas pipeline, telecommunications, and gas distribution…” Source: RevenueBase Database · checked Sep 16, 2026
17	Grupo RCS	Indirect evidence	Brasilia, BrazilHQ checked Sep 16, 2026	5,001-10,000	1,810 contacts →
	Indirect evidence “A RCS é uma empresa de Engenharia especializada em oferecer serviços técnicos de missão crítica com alta tecnologia aplicada, para clientes que necessitam manter suas atividades…” Source: RevenueBase Database · checked Sep 16, 2026
18	Quanta Services, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	10001+	1,783 contacts →
	Partial evidence “Quanta Services (NYSE: PWR) is the leading specialty contractor with the largest and highly trained skilled workforce in North America, providing fully integrated solutions for…” Source: RevenueBase Database · checked Sep 16, 2026
19	Taqa Transmission	Partial evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 16, 2026	1,001-5,000	1,674 contacts →
	Partial evidence “We own and operate safe, sustainable, economic and reliable transmission networks that connect generation plants to distribution companies and other customers.” Source: RevenueBase Database · checked Sep 16, 2026
20	Helix Electric	Strong evidence	San Diego, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,560 contacts →
	Strong evidence “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Source: RevenueBase Database · checked Sep 16, 2026
21	Çalık Enerji	Indirect evidence	İstanbul, TürkiyeHQ checked Sep 16, 2026	10001+	1,542 contacts →
	Indirect evidence “Founded in 1998, Çalık Enerji is a leading international energy company with a strong track record in delivering integrated, turn-key contracting projects across Europe, Central…” Source: RevenueBase Database · checked Sep 16, 2026
22	ITC Holdings Corp	Strong evidence	Novi, MI, United StatesHQ checked Sep 16, 2026	501-1,000	1,486 contacts →
	Strong evidence “From electric vehicles to renewables, we’re looking at electricity in a whole new way- because transmission is the key to unlocking our energy future.” Source: RevenueBase Database · checked Sep 16, 2026
23	BHI Energy	Indirect evidence	Weymouth, MA, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,427 contacts →
	Indirect evidence “BHI Energy is an industry-leading provider of specialty services and staffing solutions in support of the daily operations, routine maintenance and capital investment requirements…” Source: RevenueBase Database · checked Sep 16, 2026
24	NPL Construction CO	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	5,001-10,000	1,358 contacts →
	Indirect evidence “NPL is a nationally recognized leader in energy infrastructure construction, with 50 years of experience.” Source: RevenueBase Database · checked Sep 16, 2026
25	Control Construções Ltda	Indirect evidence	Joao Pessoa, BrazilHQ checked Sep 16, 2026	1,001-5,000	1,337 contacts →
	Indirect evidence “Fundada em na cidade de João Pessoa, a empresa se tornou especialista nas áreas de construção e prestação de serviços no setor elétrico.” Source: RevenueBase Database · checked Sep 16, 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 transmission contractors. 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 transmission contractors.
Partial evidence: Its own public description names part of electrical transmission contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical transmission contractors. 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 19,234 electrical transmission contractors worldwide

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Electrical transmission contractors worldwide at a glance

As of Sep 16, 2026

25.7%Verified-email coverage

20.2Average contacts per company

11-50Median size (employees)

0.7%Largest-city concentration · Houston

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

7,557

11-50

7,147

51-200

2,987

201-500

808

501-1,000

269

1,001-5,000

231

5,001-10,000

10001+

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 transmission contractors, 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: 38 countries, largest first: the United States, the United Kingdom, Brazil, India, Canada, Italy, Australia, France, Germany, Türkiye and 28 more. Country and city lists for electrical transmission contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “electrical transmission contractors”. 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 transmission contractors), 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 transmission contractors, 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, 99,517 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 16, 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 transmission contractors by location

66 lists · largest first

Every Electrical transmission 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 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 transmission contractors, 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 transmission contractors are there worldwide?

RevenueBase identified 19,234 electrical transmission contractors 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?

KEC International LTD, headquartered in Worldwide, tops this list with the largest team on record.

Which country has the most electrical transmission contractors?

The United States leads with 7,006 companies, followed by the United Kingdom (1,631) and Brazil (1,153). Every electrical transmission contractors list by country and city is linked on this page.

Which city has the most electrical transmission contractors?

Houston leads with 138 headquartered companies, followed by Sao Paulo (101) and London (94).

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 99,517 verified decision-maker contacts tracked across these 19,234 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 16, 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.