Company lists · Data refreshed September 2026

Top 25 Critical power infrastructure companies worldwide

RevenueBase identified 5,334 company matches for critical power infrastructure companies worldwide as of September 2026 and tracks 253,561 professional contacts across them, including 77,924 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 September 19, 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 Sep 19, 2026 How this list was built
5,334Companies
253,561Contacts tracked
77,924Verified emails
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The 25 largest critical power infrastructure companies worldwide

Ranked by team size
Top 25 of 5,334 company matches for critical power infrastructure companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchRome, ItalyHQ recorded Sep 19, 202610001+15,726 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 · Sep 19, 2026 · View company records in RevenueBase
2Exact matchColumbus, OH, United StatesHQ recorded Sep 19, 202610001+14,610 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 · Sep 19, 2026 · View company records in RevenueBase
3Exact matchBaltimore, MD, United StatesHQ recorded Sep 19, 202610001+9,458 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 · Sep 19, 2026 · View company records in RevenueBase
4Exact matchMumbai, IndiaHQ recorded Sep 19, 202610001+9,414 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 · Sep 19, 2026 · View company records in RevenueBase
5Exact matchJuno Beach, FL, United StatesHQ recorded Sep 19, 202610001+6,221 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 · Sep 19, 2026 · View company records in RevenueBase
6Exact matchGurgaon, IndiaHQ recorded Sep 19, 20265,001-10,0005,997 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 · Sep 19, 2026 · View company records in RevenueBase
7Exact matchDallas, TX, United StatesHQ recorded Sep 19, 202610001+4,089 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 · Sep 19, 2026 · View company records in RevenueBase
8Exact matchAtlanta, GA, United StatesHQ recorded Sep 19, 202610001+3,700 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 · Sep 19, 2026 · View company records in RevenueBase
9Exact matchHaifa, IsraelHQ recorded Sep 19, 202610001+3,195 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 · Sep 19, 2026 · View company records in RevenueBase
10Exact matchTysons, VA, United StatesHQ recorded Sep 19, 20265,001-10,0002,761 contacts →

Exact match

“M.C.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchGenova, ItalyHQ recorded Sep 19, 20261,001-5,0002,554 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 · Sep 19, 2026 · View company records in RevenueBase
12Exact matchBuenos Aires, ArgentinaHQ recorded Sep 19, 20261,001-5,0002,531 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 · Sep 19, 2026 · View company records in RevenueBase
13Exact matchTunis, TunisiaHQ recorded Sep 19, 202610001+2,475 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 · Sep 19, 2026 · View company records in RevenueBase
14Exact matchIrving, TX, United StatesHQ recorded Sep 19, 20265,001-10,0002,466 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 · Sep 19, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Sep 19, 20261,001-5,0002,408 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 · Sep 19, 2026 · View company records in RevenueBase
16Exact matchAB, CanadaHQ recorded Sep 19, 20265,001-10,0002,335 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 · Sep 19, 2026 · View company records in RevenueBase
17Exact matchMunich, GermanyHQ recorded Sep 19, 20261,001-5,0002,111 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 · Sep 19, 2026 · View company records in RevenueBase
18Exact matchSao Paulo, BrazilHQ recorded Sep 19, 20261,001-5,0002,049 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 · Sep 19, 2026 · View company records in RevenueBase
19Exact matchSouth KoreaHQ recorded Sep 19, 202610001+1,994 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 · Sep 19, 2026 · View company records in RevenueBase
20Exact matchMilwaukee, WI, United StatesHQ recorded Sep 19, 20265,001-10,0001,709 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 · Sep 19, 2026 · View company records in RevenueBase
21Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Sep 19, 20261,001-5,0001,674 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 · Sep 19, 2026 · View company records in RevenueBase
22Exact matchİstanbul, TürkiyeHQ recorded Sep 19, 202610001+1,542 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 · Sep 19, 2026 · View company records in RevenueBase
23Exact matchMoncks Corner, SC, United StatesHQ recorded Sep 19, 20261,001-5,0001,393 contacts →

Exact match

“Santee Cooper is South Carolina’s largest power producer, the largest Green Power generator and the ultimate source of electricity for 2 million people across the state.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchCaba, IndiaHQ recorded Sep 19, 20265,001-10,0001,352 contacts →

Exact match

“Pampa Energía S.A.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchIrving, TX, United StatesHQ recorded Sep 19, 20261,001-5,0001,221 contacts →

Exact match

“Shermco Industries is a provider of safe, reliable testing, repair, professional training, electrical outage planning, maintenance and analysis of rotating apparatus and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 5,334 critical power infrastructure companies worldwide

See the full list, filter by size, metro and specialty, and access 77,924 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 Sep 19, 2026
30.7%Verified-email coverage
47.5Average contacts per company
11-50Median size (employees)
1.1%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,878
11-50
2,060
51-200
826
201-500
238
501-1,000
128
1,001-5,000
111
5,001-10,000
28
10001+
35

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 77,924 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 September 19, 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

32 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 5,334 company matches for critical power infrastructure companies worldwide as of September 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?

Enel Group 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 1,236 companies, followed by India (340) and the United Kingdom (311). 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 59 company records, followed by Sao Paulo (53) and Bangalore (29).

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 77,924 professional contacts with verified work emails tracked across these 5,334 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 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 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.