Company lists · Data refreshed September 2026

Top 25 Enterprise telecom companies worldwide

Name: Enterprise telecom companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 19,583 companies tracked

RevenueBase identified 19,583 company matches for enterprise telecom companies worldwide as of September 2026 and tracks 1,555,785 professional contacts across them, including 275,946 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for enterprise telecom 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 21, 2026. Country and city lists for enterprise telecom 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 21, 2026 How this list was built

19,583Companies

1,555,785Contacts tracked

275,946Verified emails

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The 25 largest enterprise telecom companies worldwide

Ranked by team size

Top 25 of 19,583 company matches for enterprise telecom companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 21, 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 21, 2026 · View company records in RevenueBase
2	Verizon	Exact match	Basking Ridge, NJ, United StatesHQ recorded Sep 21, 2026	10001+	90,060 contacts →
	Exact match “We get you.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Orange	Exact match	Issy-les-moulineaux, FranceHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4	Airtel	Exact match	Gurgaon, IndiaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5	Telefónica	Exact match	Madrid, SpainHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
6	Sprint	Exact match	Overland Park, KS, United StatesHQ recorded Sep 21, 2026	10001+	39,870 contacts →
	Exact match “Thanks for everything!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Telstra	Exact match	Sydney, AustraliaHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
8	Claro Brasil	Exact match	São Paulo, BrazilHQ recorded Sep 21, 2026	10001+	30,465 contacts →
	Exact match “Prazer, somos a Claro!” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Spectrum	Exact match	Stamford, NC, United StatesHQ recorded Sep 21, 2026	10001+	26,596 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Tata Communications	Exact match	Mumbai, IndiaHQ recorded Sep 21, 2026	5,001-10,000	22,941 contacts →
	Exact match “Tata Communications is a leading global communications technology player, enabling enterprises to operate, grow, and transform in an increasingly hyperconnected world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Centurylink	Exact match	Monroe, LA, United StatesHQ recorded Sep 21, 2026	10001+	22,745 contacts →
	Exact match “CenturyLink (NYSE: CTL) is a technology leader delivering hybrid networking, cloud connectivity, and security solutions to customers around the world.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Lumen Technologies	Exact match	Monroe, LA, United StatesHQ recorded Sep 21, 2026	10001+	15,336 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Telecom Egypt	Exact match	Smart Village, EgyptHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
14	OI	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 21, 2026	10001+	13,575 contacts →
	Exact match “Aqui na Oi, trabalhamos para criar novos futuros e levar a vida digital para todos.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	TELIA	Exact match	Solna, SwedenHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
16	Verizon Business	Exact match	Basking Ridge, NJ, United StatesHQ recorded Sep 21, 2026	10001+	12,837 contacts →
	Exact match “You’re more than a business, agency or organization leader.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Turkcell	Exact match	Istanbul, TürkiyeHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
18	Telmex	Exact match	Ciudad De Mexico, MexicoHQ recorded Sep 21, 2026	10001+	11,181 contacts →
	Exact match “TELMEX, la empresa líder de telecomunicaciones y servicios TI en México, ha realizado importantes inversiones para desarrollar la plataforma tecnológica más robusta y vanguardista…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	ENTEL	Exact match	Santiago, ChileHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
20	JAZZ	Exact match	Islamabad, PakistanHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
21	Telekom Malaysia	Exact match	Kuala Lumpur, MalaysiaHQ recorded Sep 21, 2026	10001+	9,167 contacts →
	Exact match “TM is the national connectivity and digital infrastructure provider and Malaysia’s leading integrated telco; offering a comprehensive suite of communication services and solutions…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Mobily	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 21, 2026	1,001-5,000	7,585 contacts →
	Exact match “Etihad Etisalat (Mobily) is a Saudi company launched commercially in May 2005.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23	SK Telecom	Exact match	Jung-gu, South KoreaHQ recorded Sep 21, 2026	5,001-10,000	7,464 contacts →
	Exact match “SK Telecom has been leading the growth of the mobile industry since 1984.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24	Windstream	Exact match	Little Rock, AR, United StatesHQ recorded Sep 21, 2026	10001+	7,275 contacts →
	Exact match “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25	Vodafone Business	Exact match	London, United KingdomHQ recorded Sep 21, 2026	10001+	6,767 contacts →
	Exact match “Vodafone Business is part of the Vodafone Group.” Recorded in the RevenueBase company graph · Sep 21, 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 “enterprise telecom companies”. 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 19,583 enterprise telecom companies worldwide

See the full list, filter by size, metro and specialty, and access 275,946 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise telecom companies worldwide at a glance

As of Sep 21, 2026

17.7%Verified-email coverage

79.4Average contacts per company

11-50Median size (employees)

1.6%Largest-city concentration · Sao Paulo

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

7,271

11-50

7,614

51-200

2,852

201-500

868

501-1,000

360

1,001-5,000

369

5,001-10,000

10001+

119

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 enterprise telecom companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “enterprise telecom 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 275,946 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 21, 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.

Enterprise telecom companies by location

88 lists · largest first

Every Enterprise telecom 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 “enterprise telecom companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many enterprise telecom companies are there worldwide?

RevenueBase identified 19,583 company matches for enterprise telecom 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?

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

Which country has the most enterprise telecom companies?

The United States leads with 3,408 companies, followed by Brazil (1,927) and the United Kingdom (1,567). Every enterprise telecom companies list by country and city is linked on this page.

Which city has the most enterprise telecom companies?

Sao Paulo leads with 306 company records, followed by London (255) and Dubai (107).

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 275,946 professional contacts with verified work emails tracked across these 19,583 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 21, 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.