Company lists · Data refreshed September 2026

Top 25 Telecommunications network operators worldwide

RevenueBase identified 4,242 telecommunications network operators worldwide as of September 2026 and tracks 1,110,541 professional contacts across them, including 183,709 with verified work emails and 0 with mobile numbers. Brazil is the largest market and Sao Paulo the largest hub.

This list covers telecommunications network operators 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 19, 2026. Country and city lists for telecommunications network operators 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 19, 2026 86% judged on-target in blind review
4,242Companies
1,110,541Contacts tracked
183,709Verified emails
0Mobile numbers
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The 25 largest telecommunications network operators worldwide

Ranked by team size
Top 25 of 4,242 telecommunications network operators worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications network operators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceDallas, TX, United StatesHQ checked Sep 19, 202610001+149,412 contacts →

Indirect evidence

“We understand that our customers want an easier, less complicated life.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202610001+84,459 contacts →

Indirect evidence

“At Vodafone, our purpose is to connect everyone.”

Source: RevenueBase Database · checked Sep 19, 2026
3Strong evidenceIssy-les-moulineaux, FranceHQ checked Sep 19, 202610001+71,767 contacts →

Strong evidence

“Orange is one of the world’s leading telecommunications operators with revenues of 40.3 billion euros in 2024 and employees worldwide at 31 December 2024, including employees in…”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceGurgaon, IndiaHQ checked Sep 19, 202610001+67,946 contacts →

Indirect evidence

“Airtel was founded to provide global connectivity and unlock endless opportunities.”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidenceMadrid, SpainHQ checked Sep 19, 202610001+54,718 contacts →

Partial evidence

“Telefónica is today one of the largest telecommunications companies in the world in terms of market capitalisation and number of customers.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceSydney, AustraliaHQ checked Sep 19, 202610001+31,885 contacts →

Indirect evidence

“We believe it’s people who give purpose to our technology.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect evidenceSão Paulo, BrazilHQ checked Sep 19, 202610001+30,465 contacts →

Indirect evidence

“Prazer, somos a Claro!”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceSão Paulo, BrazilHQ checked Sep 19, 202610001+29,859 contacts →

Indirect evidence

“Vivo (Telefônica Brasil) is part of the Telefónica Group and with more than 94 million customers, of which 75 million mobile and 19 million fixed, we are the largest…”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceStamford, NC, United StatesHQ checked Sep 19, 202610001+26,596 contacts →

Indirect evidence

“Spectrum is a suite of advanced communications services offered by Charter Communications, Inc.(NASDAQ:CHTR), a leading broadband connectivity company available to more than 57…”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceMilano, ItalyHQ checked Sep 19, 202610001+19,263 contacts →

Indirect evidence

“We are driving the digital transition of Italy and Brazil with innovative technologies and services because we want to contribute to accelerating the sustainable growth of the…”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceCenturion, South AfricaHQ checked Sep 19, 202610001+13,574 contacts →

Partial evidence

“Connect with Mzansi’s Best* Value Network as we enable everyday ambitions.#TelkomIsIconic #PossibleBeginsHere To learn more about Telkom, visit:”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceSolna, SwedenHQ checked Sep 19, 202610001+13,021 contacts →

Indirect evidence

“Our 15 talented colleagues serve millions of customers every day in one of the world’s most connected regions.”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceIstanbul, TürkiyeHQ checked Sep 19, 20265,001-10,00012,790 contacts →

Partial evidence

“Turkcell is a converged telecommunication and technology services provider, founded and headquartered in Türkiye.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidenceSantiago, ChileHQ checked Sep 19, 20261,001-5,00010,668 contacts →

Indirect evidence

“Desde el origen en 1964, uno de nuestros motores para avanzar y evolucionar ha sido el querer ser un aporte para el desarrollo futuro de las personas, las empresas y la sociedad.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceCiudad, ArgentinaHQ checked Sep 19, 202610001+10,572 contacts →

Indirect evidence

“We are Telecom Argentina, a connectivity solutions and entertainment company with over collaborators throughout the country.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceBogotá, ColombiaHQ checked Sep 19, 202610001+9,652 contacts →

Indirect evidence

“Claro Telecomunicaciones móviles y Claro Telecomunicaciones fijas.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceLittle Rock, AR, United StatesHQ checked Sep 19, 202610001+7,275 contacts →

Indirect evidence

“Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceDubai, United Arab EmiratesHQ checked Sep 19, 20261,001-5,0006,465 contacts →

Indirect evidence

“Add life to life.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidencePhoenix, AZ, United StatesHQ checked Sep 19, 20261,001-5,0006,379 contacts →

Indirect evidence

“Cable One Business offers scalable, reliable, and efficient solutions so that the businesses we serve can be successful.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceHuechuraba, ChileHQ checked Sep 19, 20261,001-5,0005,324 contacts →

Indirect evidence

“Claro Chile es filial de América Móvil, el tercer operador de telecomunicaciones en el mundo y el más grande de Latinoamérica.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceCiudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 19, 20261,001-5,0005,204 contacts →

Indirect evidence

“Te damos la Bienvenida a Claro Argentina Somos parte de América Móvil, uno de los grupos de telecomunicaciones más importantes a nivel mundial, con presencia en países de América…”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceUtrecht, NetherlandsHQ checked Sep 19, 20265,001-10,0005,037 contacts →

Indirect evidence

“VodafoneZiggo is een krachtenbundeling van twee sterke Nederlandse bedrijven.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceSão Paulo, BrazilHQ checked Sep 19, 202610001+4,921 contacts →

Indirect evidence

“A GVT é a empresa nacional que mais cresce no setor de telecomunicações.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceSão Paulo, BrazilHQ checked Sep 19, 202610001+4,895 contacts →

Indirect evidence

“A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.”

Source: RevenueBase Database · checked Sep 19, 2026
25Partial evidenceKista, SwedenHQ checked Sep 19, 20261,001-5,0004,444 contacts →

Partial evidence

“Tele2 is a Nordic and Baltic telecom operator built on a strong challenger culture.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 4,242 telecommunications network operators worldwide

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 183,709 reachable decision-makers.

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Telecommunications network operators worldwide at a glance

As of Sep 19, 2026
16.5%Verified-email coverage
261.8Average contacts per company
11-50Median size (employees)
2.5%Largest-city concentration · Sao Paulo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,504
11-50
1,536
51-200
678
201-500
204
501-1,000
75
1,001-5,000
119
5,001-10,000
35
10001+
66

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 telecommunications network operators, 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
27 countries, largest first: Brazil, the United States, the United Kingdom, Spain, France, Italy, Germany, India, Poland, Australia and 17 more. Country and city lists for telecommunications network operators are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “telecommunications network operators”. 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 telecommunications network operators), 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 telecommunications network operators, 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, 183,709 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 19, 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.

Telecommunications network operators by location

29 lists · largest first

Every Telecommunications network operators 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 telecommunications network operators, 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 telecommunications network operators are there worldwide?

RevenueBase identified 4,242 telecommunications network operators 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?

At&t, headquartered in Dallas, tops this list with the largest team on record.

Which country has the most telecommunications network operators?

Brazil leads with 959 companies, followed by the United States (546) and the United Kingdom (443). Every telecommunications network operators list by country and city is linked on this page.

Which city has the most telecommunications network operators?

Sao Paulo leads with 105 headquartered companies, followed by London (69) and Rio De Janeiro (37).

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 183,709 verified decision-maker contacts tracked across these 4,242 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 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 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.