Company lists · Data refreshed September 2026

Top 25 Communication service providers worldwide

Name: Communication service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 7,935 companies tracked

RevenueBase identified 7,935 company matches for communication service providers worldwide as of September 2026 and tracks 1,703,081 professional contacts across them, including 282,341 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for communication service providers 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 communication service providers 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

7,935Companies

1,703,081Contacts tracked

282,341Verified emails

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The 25 largest communication service providers worldwide

Ranked by team size

Top 25 of 7,935 company matches for communication service providers 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	At&t	Exact match	Dallas, TX, United StatesHQ recorded Sep 19, 2026	10001+	149,412 contacts →
	Exact match “We understand that our customers want an easier, less complicated life.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	Vodafone	Exact match	London, United KingdomHQ recorded Sep 19, 2026	10001+	84,459 contacts →
	Exact match “At Vodafone, our purpose is to connect everyone.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Orange	Exact match	Issy-les-moulineaux, FranceHQ recorded Sep 19, 2026	10001+	71,767 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Airtel	Exact match	Gurgaon, IndiaHQ recorded Sep 19, 2026	10001+	67,946 contacts →
	Exact match “Airtel was founded to provide global connectivity and unlock endless opportunities.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5	Telefónica	Exact match	Madrid, SpainHQ recorded Sep 19, 2026	10001+	54,718 contacts →
	Exact match “Telefónica is today one of the largest telecommunications companies in the world in terms of market capitalisation and number of customers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Telstra	Exact match	Sydney, AustraliaHQ recorded Sep 19, 2026	10001+	31,885 contacts →
	Exact match “We believe it’s people who give purpose to our technology.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Charter Communications	Exact match	Stamford, CT, United StatesHQ recorded Sep 19, 2026	10001+	30,997 contacts →
	Exact match “For company news and job opportunities, please follow us at: Spectrum is powered and innovated by Charter Communications.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	Claro Brasil	Exact match	São Paulo, BrazilHQ recorded Sep 19, 2026	10001+	30,465 contacts →
	Exact match “Prazer, somos a Claro!” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Vivo Telefônica Brasil	Exact match	São Paulo, BrazilHQ recorded Sep 19, 2026	10001+	29,859 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10	SKY	Exact match	Middlesex, United KingdomHQ recorded Sep 19, 2026	10001+	26,533 contacts →
	Exact match “Sky connects and entertains millions of people across Europe.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	E& UAE	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Sep 19, 2026	10001+	24,168 contacts →
	Exact match “Formerly etisalat UAE) For more than four decades, we have connected people and now we’ve evolved to become the digital telco of the future.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	TIM	Exact match	Milano, ItalyHQ recorded Sep 19, 2026	10001+	19,263 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Telkomsel	Exact match	Jakarta Selatan, IndonesiaHQ recorded Sep 19, 2026	5,001-10,000	14,605 contacts →
	Exact match “Connecting Nation.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Telecom Egypt	Exact match	Smart Village, EgyptHQ recorded Sep 19, 2026	10001+	14,061 contacts →
	Exact match “Since its establishment in 1854, Telecom Egypt has played a pivotal role in driving growth within the local ICT market capitalizing on its vast infrastructure, which is one of the…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Telkom	Exact match	Centurion, South AfricaHQ recorded Sep 19, 2026	10001+	13,574 contacts →
	Exact match “Connect with Mzansi’s Best* Value Network as we enable everyday ambitions.#TelkomIsIconic #PossibleBeginsHere To learn more about Telkom, visit:” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	TELIA	Exact match	Solna, SwedenHQ recorded Sep 19, 2026	10001+	13,021 contacts →
	Exact match “Our 15 talented colleagues serve millions of customers every day in one of the world’s most connected regions.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	Verizon Business	Exact match	Basking Ridge, NJ, United StatesHQ recorded Sep 19, 2026	10001+	12,837 contacts →
	Exact match “You’re more than a business, agency or organization leader.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Turkcell	Exact match	Istanbul, TürkiyeHQ recorded Sep 19, 2026	5,001-10,000	12,790 contacts →
	Exact match “Turkcell is a converged telecommunication and technology services provider, founded and headquartered in Türkiye.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Globe Telecom	Exact match	Taguig City National, PhilippinesHQ recorded Sep 19, 2026	5,001-10,000	12,676 contacts →
	Exact match “Globe is a leading full-service telecommunications company in the Philippines and publicly listed in the PSE with the stock symbol GLO.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Swisscom	Exact match	Worblaufen, SwitzerlandHQ recorded Sep 19, 2026	10001+	12,155 contacts →
	Exact match “As No.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	Proximus Group	Exact match	Brussels, BelgiumHQ recorded Sep 19, 2026	10001+	10,716 contacts →
	Exact match “Proximus Group is a provider of future-proof connectivity, IT and digital services, headquartered in Brussels.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	ENTEL	Exact match	Santiago, ChileHQ recorded Sep 19, 2026	1,001-5,000	10,668 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	JAZZ	Exact match	Islamabad, PakistanHQ recorded Sep 19, 2026	1,001-5,000	10,623 contacts →
	Exact match “Pakistan’s number one digital operator and the largest internet and broadband service provider with over 70 million subscribers nationwide.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Telecom Argentina	Exact match	Ciudad, ArgentinaHQ recorded Sep 19, 2026	10001+	10,572 contacts →
	Exact match “We are Telecom Argentina, a connectivity solutions and entertainment company with over collaborators throughout the country.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	SFR	Exact match	Paris, FranceHQ recorded Sep 19, 2026	5,001-10,000	9,922 contacts →
	Exact match “SFR is the number one alternative telecoms operator in France.” Recorded in the RevenueBase company graph · Sep 19, 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 “communication service providers”. 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 7,935 communication service providers worldwide

See the full list, filter by size, metro and specialty, and access 282,341 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Communication service providers worldwide at a glance

As of Sep 19, 2026

16.6%Verified-email coverage

214.6Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

2,670

11-50

2,769

51-200

1,271

201-500

456

501-1,000

211

1,001-5,000

316

5,001-10,000

10001+

132

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 communication service providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “communication service providers” 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 282,341 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.

Communication service providers by location

34 lists · largest first

Every Communication service providers 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 “communication service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many communication service providers are there worldwide?

RevenueBase identified 7,935 company matches for communication service providers 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?

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

Which country has the most communication service providers?

Brazil leads with 1,355 companies, followed by the United States (791) and the United Kingdom (602). Every communication service providers list by country and city is linked on this page.

Which city has the most communication service providers?

Sao Paulo leads with 128 company records, followed by London (91) and Madrid (49).

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 282,341 professional contacts with verified work emails tracked across these 7,935 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.