Company lists · Data refreshed September 2026

Top 25 Enterprise telecommunications providers worldwide

Name: Enterprise telecommunications providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 17,401 companies tracked

RevenueBase identified 17,401 company matches for enterprise telecommunications providers worldwide as of September 2026 and tracks 1,065,491 professional contacts across them, including 183,417 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for enterprise telecommunications 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 28, 2026. Country and city lists for enterprise telecommunications 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 28, 2026 How this list was built

17,401Companies

1,065,491Contacts tracked

183,417Verified emails

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The 25 largest enterprise telecommunications providers worldwide

Ranked by team size

Top 25 of 17,401 company matches for enterprise telecommunications providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 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 28, 2026 · View company records in RevenueBase
2	Airtel	Exact match	Gurgaon, IndiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	Telefónica	Exact match	Madrid, SpainHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	Spectrum	Exact match	Stamford, NC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5	Tata Communications	Exact match	Mumbai, IndiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6	Centurylink	Exact match	Monroe, LA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	Lumen Technologies	Exact match	Monroe, LA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	Telecom Egypt	Exact match	Smart Village, EgyptHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
9	OI	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	TELIA	Exact match	Solna, SwedenHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11	Verizon Business	Exact match	Basking Ridge, NJ, United StatesHQ recorded Sep 28, 2026	10001+	12,837 contacts →
	Exact match “You’re more than a business, agency or organization leader.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Turkcell	Exact match	Istanbul, TürkiyeHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
13	Telmex	Exact match	Ciudad De Mexico, MexicoHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
14	Comcast Business	Exact match	Philadelphia, PA, United StatesHQ recorded Sep 28, 2026	10001+	8,242 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Mobily	Exact match	Riyadh, Saudi ArabiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
16	Windstream	Exact match	Little Rock, AR, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
17	Vodafone Business	Exact match	London, United KingdomHQ recorded Sep 28, 2026	10001+	6,767 contacts →
	Exact match “Vodafone Business is part of the Vodafone Group.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	DU	Exact match	Dubai, United Arab EmiratesHQ recorded Sep 28, 2026	1,001-5,000	6,465 contacts →
	Exact match “Add life to life.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Cable ONE	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 28, 2026	1,001-5,000	6,379 contacts →
	Exact match “Cable One Business offers scalable, reliable, and efficient solutions so that the businesses we serve can be successful.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Grameenphone LTD	Exact match	Dhaka, BangladeshHQ recorded Sep 28, 2026	1,001-5,000	6,298 contacts →
	Exact match “The right and contemporary use of technology is key to the progress of a nation.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Colt Technology Services	Exact match	London, United KingdomHQ recorded Sep 28, 2026	5,001-10,000	6,233 contacts →
	Exact match “Colt Technology Services (Colt) is a global digital infrastructure company which creates extraordinary connections to help businesses succeed.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Dialog Axiata PLC	Exact match	Colombo 2, Sri LankaHQ recorded Sep 28, 2026	1,001-5,000	5,338 contacts →
	Exact match “Dialog Axiata PLC is Sri Lanka’s flagship telecommunications service provider, which operates Dialog Mobile– the country’s largest mobile network.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Claro Argentina	Exact match	Ciudad Autónoma De Buenos Aires, ArgentinaHQ recorded Sep 28, 2026	1,001-5,000	5,204 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Vodafoneziggo	Exact match	Utrecht, NetherlandsHQ recorded Sep 28, 2026	5,001-10,000	5,037 contacts →
	Exact match “VodafoneZiggo is een krachtenbundeling van twee sterke Nederlandse bedrijven.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Spark NEW Zealand	Exact match	Cbd, New ZealandHQ recorded Sep 28, 2026	5,001-10,000	4,023 contacts →
	Exact match “In today’s fast-paced digital world, Spark is here to help all New Zealanders stay ahead.” Recorded in the RevenueBase company graph · Sep 28, 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 telecommunications 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 17,401 enterprise telecommunications providers worldwide

See the full list, filter by size, metro and specialty, and access 183,417 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Enterprise telecommunications providers worldwide at a glance

As of Sep 28, 2026

17.2%Verified-email coverage

61.2Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

6,771

11-50

6,763

51-200

2,425

201-500

695

501-1,000

266

1,001-5,000

280

5,001-10,000

10001+

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 telecommunications providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “enterprise telecommunications 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 183,417 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 28, 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 telecommunications providers by location

86 lists · largest first

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

How many enterprise telecommunications providers are there worldwide?

RevenueBase identified 17,401 company matches for enterprise telecommunications 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 enterprise telecommunications providers?

The United States leads with 3,469 companies, followed by Brazil (1,618) and the United Kingdom (1,490). Every enterprise telecommunications providers list by country and city is linked on this page.

Which city has the most enterprise telecommunications providers?

Sao Paulo leads with 257 company records, followed by London (239) and Madrid (91).

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 183,417 professional contacts with verified work emails tracked across these 17,401 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 28, 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.