Company lists · Data refreshed September 2026

Top 25 Telecom network operators worldwide

RevenueBase identified 5,601 telecom network operators worldwide as of September 2026 and tracks 901,995 professional contacts across them, including 149,073 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers telecom 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 telecom 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
5,601Companies
901,995Contacts tracked
149,073Verified emails
0Mobile numbers
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The 25 largest telecom network operators worldwide

Ranked by team size
Top 25 of 5,601 telecom 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 telecom 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 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
3Partial 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
4Indirect evidenceStamford, CT, United StatesHQ checked Sep 19, 202610001+30,997 contacts →

Indirect evidence

“For company news and job opportunities, please follow us at: Spectrum is powered and innovated by Charter Communications.”

Source: RevenueBase Database · checked Sep 19, 2026
5Indirect 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
6Partial evidenceMonroe, LA, United StatesHQ checked Sep 19, 202610001+15,336 contacts →

Partial evidence

“Lumen is the trusted network for the AI-powered world, connecting people, data, and applications through one of the world’s most expansive fiber networks.”

Source: RevenueBase Database · checked Sep 19, 2026
7Indirect 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
8Indirect evidenceBasking Ridge, NJ, United StatesHQ checked Sep 19, 202610001+12,837 contacts →

Indirect evidence

“You’re more than a business, agency or organization leader.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial 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
10Partial evidenceBogotá, ColombiaHQ checked Sep 19, 202610001+9,652 contacts →

Partial evidence

“Claro Telecomunicaciones móviles y Claro Telecomunicaciones fijas.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceKuala Lumpur, MalaysiaHQ checked Sep 19, 202610001+9,167 contacts →

Indirect evidence

“TM is the national connectivity and digital infrastructure provider and Malaysia’s leading integrated telco; offering a comprehensive suite of communication services and solutions…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceRiyadh, Saudi ArabiaHQ checked Sep 19, 20261,001-5,0007,585 contacts →

Indirect evidence

“Etihad Etisalat (Mobily) is a Saudi company launched commercially in May 2005.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect 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
14Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202610001+6,767 contacts →

Indirect evidence

“Vodafone Business is part of the Vodafone Group.”

Source: RevenueBase Database · checked Sep 19, 2026
15Partial evidenceSão Paulo, BrazilHQ checked Sep 19, 202610001+6,428 contacts →

Partial evidence

“A NET faz parte da Claro Brasil, líder em telecomunicações da América Latina e operadora que mais cresce no mercado móvel brasileiro.”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect 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
17Partial evidenceCiudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 19, 20261,001-5,0005,204 contacts →

Partial 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
18Indirect 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
19Strong evidenceKista, SwedenHQ checked Sep 19, 20261,001-5,0004,444 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceCalgary, AB, CanadaHQ checked Sep 19, 202610001+4,209 contacts →

Partial evidence

“Shaw and Rogers have come together to continue expanding connectivity, supporting local communities and bringing you the latest 5G and fibre network technology.”

Source: RevenueBase Database · checked Sep 19, 2026
21Strong evidenceParis, FranceHQ checked Sep 19, 202610001+3,901 contacts →

Strong 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 19, 2026
22Partial evidenceMilano, ItalyHQ checked Sep 19, 20265,001-10,0003,850 contacts →

Partial evidence

“WINDTRE è l’operatore italiano che offre connessioni, energia e prodotti assicurativi*.”

Source: RevenueBase Database · checked Sep 19, 2026
23Partial evidenceBarangaroo, AustraliaHQ checked Sep 19, 20261,001-5,0003,352 contacts →

Partial evidence

“TPG Telecom is one of Australia’s largest telecommunication companies and operates a number of leading mobile and internet brands including Vodafone, TPG, iiNet, Internode…”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceGlattpark (opfikon), SwitzerlandHQ checked Sep 19, 20261,001-5,0003,284 contacts →

Partial evidence

“Sunrise is Switzerland’s leading challenger in the telecommunications market and is listed on the SIX Swiss Exchange (SUNN).”

Source: RevenueBase Database · checked Sep 19, 2026
25Strong evidenceBucurești, RomaniaHQ checked Sep 19, 20265,001-10,0002,913 contacts →

Strong evidence

“Grupul DIGI este unul dintre principalii operatori de servicii convergente de telecomunicații din Europa, care activează în România, Spania, Italia (MVNO), Portugalia și Belgia.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 5,601 telecom network operators worldwide

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Telecom network operators worldwide at a glance

As of Sep 19, 2026
16.5%Verified-email coverage
161.0Average contacts per company
11-50Median size (employees)
1.9%Largest-city concentration · Sao Paulo
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
1,895
11-50
2,100
51-200
948
201-500
310
501-1,000
109
1,001-5,000
134
5,001-10,000
24
10001+
54

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 telecom 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
30 countries, largest first: the United States, Brazil, the United Kingdom, France, Spain, Italy, Germany, India, Canada, Australia and 20 more. Country and city lists for telecom network operators are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “telecom 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 telecom 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 telecom 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, 149,073 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.

Telecom network operators by location

32 lists · largest first

Every Telecom 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 telecom 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 telecom network operators are there worldwide?

RevenueBase identified 5,601 telecom 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 telecom network operators?

The United States leads with 1,380 companies, followed by Brazil (1,093) and the United Kingdom (456). Every telecom network operators list by country and city is linked on this page.

Which city has the most telecom network operators?

Sao Paulo leads with 105 headquartered companies, followed by London (66) and Madrid (33).

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 149,073 verified decision-maker contacts tracked across these 5,601 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.