Company lists · Data refreshed November 2026

Top 25 Regional transmission organizations worldwide

RevenueBase identified 239 company matches for regional transmission organizations worldwide as of November 2026 and tracks 104,403 professional contacts across them, including 31,444 with verified work emails. The United States is the largest market and New Delhi the largest hub.

This list covers company matches for regional transmission organizations 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 regional transmission organizations 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
239Companies
104,403Contacts tracked
31,444Verified emails
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The 25 largest regional transmission organizations worldwide

Ranked by team size
Top 25 of 239 company matches for regional transmission organizations 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchColumbus, OH, United StatesHQ recorded Nov 6, 202610001+11,678 contacts →

Exact match

“Our team at American Electric Power is committed to improving our customers' lives with reliable, affordable power.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchRiyadh, Saudi ArabiaHQ recorded Nov 6, 202610001+10,049 contacts →

Exact match

“The Saudi Electricity Company was established on the 5th of April in the year incorporated in accordance with Council of Ministers Mandate No.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLa Defense Cedex, FranceHQ recorded Nov 6, 202610001+7,740 contacts →

Exact match

“Chaque jour, nous faisons du réseau électrique le moteur d’une France décarbonée en transportant l’électricité à chaque seconde et en veillant en permanence à son équilibre…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchIndiaHQ recorded Nov 6, 20265,001-10,0005,955 contacts →

Exact match

“Torrent Power is one of the leading brands in the Indian power sector.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchQuezon City, PhilippinesHQ recorded Nov 6, 20261,001-5,0002,831 contacts →

Exact match

“At NGCP, our mission is to empower every person and every organization in the Philippines to facilitate technological advancements, enhance the quality of life, and stimulate…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFredericia, DenmarkHQ recorded Nov 6, 20261,001-5,0002,813 contacts →

Exact match

“NEW WINDS IN THE ENERGYSECTOR The energy sector is undergoing a large-scale transformation because of national and international agreements to convert to climate-neutral societies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBayreuth, GermanyHQ recorded Nov 6, 20265,001-10,0002,697 contacts →

Exact match

“TenneT is a leading European grid operator.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNewstead, AustraliaHQ recorded Nov 6, 20265,001-10,0002,512 contacts →

Exact match

“Energy Queensland formed in 2016 with the merger of Ergon Energy and Energex, creating a single energy company that powers communities from Tweed Heads up to the Torres Strait and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHaymarket, AustraliaHQ recorded Nov 6, 20261,001-5,0002,511 contacts →

Exact match

“Ausgrid is Australia's largest distributor of electricity, provided products and services to 1.7 million customers in Sydney, the Hunter and the Central Coast.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDortmund, GermanyHQ recorded Nov 6, 20261,001-5,0001,874 contacts →

Exact match

“Das Übertragungsnetz von Amprion transportiert Strom für rund 29 Millionen Menschen in einem Gebiet von der Nordsee bis zu den Alpen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 6, 20261,001-5,0001,794 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
12Exact matchOslo, NorwayHQ recorded Nov 6, 20261,001-5,0001,778 contacts →

Exact match

“Statnett eier og driver hovedparten av sentralnettet, som kan beskrives som riksveiene i norsk strømforsyning.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchColombo, Sri LankaHQ recorded Nov 6, 202610001+1,665 contacts →

Exact match

“Ceylon Electricity Board is a body corporate established on the 1st November 1969 under the Act of Parliament No.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNovi, MI, United StatesHQ recorded Nov 6, 2026501-1,0001,556 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Nov 6, 20261,001-5,0001,469 contacts →

Exact match

“Senelec est une société anonyme à capitaux publics majoritaires, concessionnaire de la production, du transport, de la distribution et de la vente de l’énergie électrique mais…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 2026501-1,0001,372 contacts →

Exact match

“O Operador Nacional do Sistema Elétrico (ONS) é o órgão responsável pela coordenação e controle da operação das instalações de geração e transmissão de energia elétrica no Sistema…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCarmel, AR, United StatesHQ recorded Nov 6, 20261,001-5,0001,291 contacts →

Exact match

“MISO is the electric grid operator for the central United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchStuttgart, GermanyHQ recorded Nov 6, 20261,001-5,0001,194 contacts →

Exact match

“Secure electricity grids are the prerequisite for a reliable energy supply and the basis for a functioning economy and society.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchMadrid, SpainHQ recorded Nov 6, 20261,001-5,0001,107 contacts →

Exact match

“Red Eléctrica fue la primera empresa en el mundo dedicada en exclusividad al transporte de electricidad y a la operación de sistemas eléctricos.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchAudubon, PA, United StatesHQ recorded Nov 6, 2026501-1,0001,090 contacts →

Exact match

“PJM Interconnection manages the high-voltage electric system that provides power to 67 million people in all or parts of 13 states and the District of Columbia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTaylor, TX, United StatesHQ recorded Nov 6, 2026501-1,0001,081 contacts →

Exact match

“The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to 27 million Texas customers - representing about 90 percent of the state's electric load.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchMaitama, NigeriaHQ recorded Nov 6, 20261,001-5,0001,067 contacts →

Exact match

“As part of Nigeria’s broader power sector reforms in the early the Federal Government, under the leadership of former President Olusegun Obasanjo, sought to address the nation’s…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSantiago, ChileHQ recorded Nov 6, 2026501-1,000967 contacts →

Exact match

“Transelec’s mission is to be a leader in the development of the national electricity system, expanding transmission services in a sustainable and efficient manner, and profitably…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchFolsom, CA, United StatesHQ recorded Nov 6, 2026501-1,000900 contacts →

Exact match

“The California Independent System Operator (ISO) manages the flow of electricity across the high-voltage, long-distance power lines that make up 80 percent of California's power…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchLittle Rock, AR, United StatesHQ recorded Nov 6, 2026501-1,000889 contacts →

Exact match

“Working together to responsibly and economically keep the lights on today and in the future.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 239 regional transmission organizations worldwide

See the full list, filter by size, metro and specialty, and access 31,444 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Regional transmission organizations worldwide at a glance

As of Nov 6, 2026
30.1%Verified-email coverage
436.8Average contacts per company
51-200Median size (employees)
3.3%Largest-city concentration · New Delhi
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
42
11-50
36
51-200
52
201-500
16
501-1,000
31
1,001-5,000
33
5,001-10,000
9
10001+
15

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 regional transmission organizations are linked below.
What qualifies
Company records worldwide whose business descriptions match “regional transmission organizations” 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 31,444 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.

Regional transmission organizations by location

1 lists · largest first

Every Regional transmission organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “regional transmission organizations”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many regional transmission organizations are there worldwide?

RevenueBase identified 239 company matches for regional transmission organizations 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?

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

Which country has the most regional transmission organizations?

The United States leads with 49 companies. Every regional transmission organizations list by country and city is linked on this page.

Which city has the most regional transmission organizations?

New Delhi leads with 8 company records, followed by Sao Paulo (5) and Washington (4).

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 31,444 professional contacts with verified work emails tracked across these 239 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.