Company lists · Data refreshed November 2026

Top 25 Critical power infrastructure companies worldwide

Name: Critical power infrastructure companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 7,248 companies tracked

RevenueBase identified 7,248 company matches for critical power infrastructure companies worldwide as of November 2026 and tracks 306,235 professional contacts across them, including 94,143 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for critical power infrastructure companies 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 critical power infrastructure companies 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

7,248Companies

306,235Contacts tracked

94,143Verified emails

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The 25 largest critical power infrastructure companies worldwide

Ranked by team size

Top 25 of 7,248 company matches for critical power infrastructure companies 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	Vertiv	Exact match	Columbus, United StatesHQ recorded Nov 6, 2026	10001+	16,620 contacts →
	Exact match “Vertiv is a global leader in critical digital infrastructure for applications in data centers, communication networks, and commercial and industrial environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Enel Group	Exact match	Rome, ItalyHQ recorded Nov 6, 2026	10001+	16,168 contacts →
	Exact match “We are a multinational company reshaping the future of energy and one of the world’s leading integrated electricity operators.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Constellation	Exact match	Baltimore, MD, United StatesHQ recorded Nov 6, 2026	10001+	10,040 contacts →
	Exact match “Constellation Energy Corporation (Nasdaq: CEG), a Fortune 200 company headquartered in Baltimore, is the nation’s largest producer of reliable, emissions-free energy and a leading…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Tata Power	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	10001+	9,891 contacts →
	Exact match “Tata Power is one of India’s largest integrated power companies and together with its subsidiaries and jointly controlled entities, has an installed/managed capacity of 14,294 MW.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Nextera Energy Resources	Exact match	Juno Beach, FL, United StatesHQ recorded Nov 6, 2026	10001+	6,545 contacts →
	Exact match “NextEra Energy Resources, LLC, together with its affiliated entities,("NextEra Energy Resources") is one of the largest energy infrastructure companies in North America.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Power Grid Corporation Of India Limited	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	5,001-10,000	6,251 contacts →
	Exact match “Power Grid Corporation of India Limited (POWERGRID), is a 'Maharatna' Company operating under Ministry of Power, is engaged in power transmission business.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Primoris Services Corporation	Exact match	Dallas, AZ, United StatesHQ recorded Nov 6, 2026	10001+	4,275 contacts →
	Exact match “Primoris Services Corporation (NYSE: PRIM) is a leading provider of critical infrastructure services to the utility, energy, and renewables markets throughout the United States…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Fieldcore	Exact match	Atlanta, GA, United StatesHQ recorded Nov 6, 2026	10001+	3,768 contacts →
	Exact match “GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	M.C. Dean, INC	Exact match	Tysons, VA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,496 contacts →
	Exact match “M.C.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	IEC	Exact match	Haifa, IsraelHQ recorded Nov 6, 2026	10001+	3,351 contacts →
	Exact match “The Israel Electric Corporation (IEC) is a public, government company, 99.85% of its shares are government-owned and traded on the Tel-Aviv and Singapore stock exchange.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Ansaldo Energia	Exact match	Genoa, ItalyHQ recorded Nov 6, 2026	1,001-5,000	2,736 contacts →
	Exact match “Ansaldo Energia Group is an international leader in the power generation industry and a key player in the energy transition.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Vistra Corp	Exact match	Irving, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,727 contacts →
	Exact match “Vistra (NYSE: VST) is a leading Fortune 500 integrated retail electricity and power generation company, based in Irving, Texas, that provides essential resources to customers…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Edenor	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 6, 2026	1,001-5,000	2,712 contacts →
	Exact match “Somos la mayor distribuidora de energía eléctrica de la Argentina en términos de cantidad de clientes y electricidad vendida.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Société Tunisienne DE L'electricité ET DU GAZ Steg	Exact match	Tunis, TunisiaHQ recorded Nov 6, 2026	10001+	2,586 contacts →
	Exact match “The Tunisian Company of Electricity and Gas (STEG) as a public and a non administrative company, has the essential role to : • Electrify the country • Develop the natural gas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Invenergy	Exact match	Chicago, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,526 contacts →
	Exact match “Invenergy is North America’s largest privately held developer, owner, and operator of innovative, reliable power infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	ATCO	Exact match	AB, CanadaHQ recorded Nov 6, 2026	5,001-10,000	2,508 contacts →
	Exact match “ATCO is a global leader in housing, energy and defence, delivering the essential services people and communities depend on every day.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Innio Group	Exact match	Munich, WI, GermanyHQ recorded Nov 6, 2026	1,001-5,000	2,393 contacts →
	Exact match “INNIO Group is a global distributed energy solutions provider that delivers reliable, flexible, transient, decentralized, modular and efficient power.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	EDP Brasil	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,117 contacts →
	Exact match “Com mais de 20 anos de atuação no Brasil, a EDP é uma das maiores empresas privadas do setor elétrico a operar em toda a cadeia de valor.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Korea Electric Power Corporation Kepco	Exact match	South KoreaHQ recorded Nov 6, 2026	10001+	2,057 contacts →
	Exact match “Korea Electric Power Corporation (“KEPCO”) is a state-owned, integrated electric utility company in the Republic of Korea, whose six generation subsidiaries produce the majority…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Enercon Services, INC	Exact match	Kennesaw, PA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,022 contacts →
	Exact match “ENERCON is a multi-discipline engineering and environmental engineering support services firm focused on delivering safe and efficient solutions for the power, data center and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Grupo RCS	Exact match	Brasilia, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,973 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Rehlko	Exact match	Milwaukee, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,933 contacts →
	Exact match “Rehlko is a global leader in energy resilience, delivering the solutions critical to sustain and improve life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Çalık Enerji	Exact match	İstanbul, TürkiyeHQ recorded Nov 6, 2026	10001+	1,804 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Taqa Transmission	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	1,794 contacts →
	Exact match “We own and operate safe, sustainable, economic and reliable transmission networks that connect generation plants to distribution companies and other customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,666 contacts →
	Exact match “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” 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 “critical power infrastructure companies”. 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 7,248 critical power infrastructure companies worldwide

See the full list, filter by size, metro and specialty, and access 94,143 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Critical power infrastructure companies worldwide at a glance

As of Nov 6, 2026

30.7%Verified-email coverage

42.3Average contacts per company

11-50Median size (employees)

1.0%Largest-city concentration · Houston

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

2,631

11-50

2,793

51-200

1,069

201-500

312

501-1,000

148

1,001-5,000

132

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 critical power infrastructure companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “critical power infrastructure companies” 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 94,143 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.

Critical power infrastructure companies by location

40 lists · largest first

Every Critical power infrastructure 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 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 “critical power infrastructure companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many critical power infrastructure companies are there worldwide?

RevenueBase identified 7,248 company matches for critical power infrastructure companies 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?

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

Which country has the most critical power infrastructure companies?

The United States leads with 1,624 companies, followed by Brazil (429) and the United Kingdom (415). Every critical power infrastructure companies list by country and city is linked on this page.

Which city has the most critical power infrastructure companies?

Houston leads with 71 company records, followed by Sao Paulo (67) and Bangalore (45).

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 94,143 professional contacts with verified work emails tracked across these 7,248 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.