Company lists · Data refreshed November 2026

Top 25 Business telecom services worldwide

Name: Business telecom services worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 17,848 companies tracked

RevenueBase identified 17,848 company matches for business telecom services worldwide as of November 2026 and tracks 1,015,135 professional contacts across them, including 156,706 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for business telecom services 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 November 6, 2026. Country and city lists for business telecom services 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 Nov 6, 2026 How this list was built

17,848Companies

1,015,135Contacts tracked

156,706Verified emails

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The 25 largest business telecom services worldwide

Ranked by team size

Top 25 of 17,848 company matches for business telecom services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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, CA, United StatesHQ recorded Nov 6, 2026	10001+	162,612 contacts →
	Exact match “We understand that our customers want an easier, less complicated life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Airtel	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	10001+	70,813 contacts →
	Exact match “Airtel was founded to provide global connectivity and unlock endless opportunities.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Telefónica	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	10001+	57,647 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 · Nov 6, 2026 · View company records in RevenueBase
4	Sprint	Exact match	Overland Park, KS, United StatesHQ recorded Nov 6, 2026	10001+	42,120 contacts →
	Exact match “Thanks for everything!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Spectrum	Exact match	Stamford, NC, United StatesHQ recorded Nov 6, 2026	10001+	30,583 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 · Nov 6, 2026 · View company records in RevenueBase
6	Telecom Egypt	Exact match	Smart Village, EgyptHQ recorded Nov 6, 2026	10001+	14,642 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 · Nov 6, 2026 · View company records in RevenueBase
7	Turkcell	Exact match	Istanbul, TürkiyeHQ recorded Nov 6, 2026	5,001-10,000	13,929 contacts →
	Exact match “Turkcell is a converged telecommunication and technology services provider, founded and headquartered in Türkiye.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	TELIA	Exact match	Solna, SwedenHQ recorded Nov 6, 2026	10001+	13,849 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 · Nov 6, 2026 · View company records in RevenueBase
9	Verizon Business	Exact match	Basking Ridge, United StatesHQ recorded Nov 6, 2026	10001+	13,770 contacts →
	Exact match “You’re more than a business, agency or organization leader.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Comcast Business	Exact match	Philadelphia, PA, United StatesHQ recorded Nov 6, 2026	10001+	8,837 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Mobily	Exact match	Riyadh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	7,959 contacts →
	Exact match “Mobily is a Saudi company launched commercially in May 2005.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Windstream	Exact match	Little Rock, AR, United StatesHQ recorded Nov 6, 2026	10001+	7,649 contacts →
	Exact match “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Vodafone Business	Exact match	London, United KingdomHQ recorded Nov 6, 2026	10001+	6,808 contacts →
	Exact match “Vodafone Business is part of the Vodafone Group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Grameenphone LTD	Exact match	Dhaka, BangladeshHQ recorded Nov 6, 2026	1,001-5,000	6,770 contacts →
	Exact match “The right and contemporary use of technology is key to the progress of a nation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Claro Chile S.A	Exact match	Huechuraba, ChileHQ recorded Nov 6, 2026	1,001-5,000	5,959 contacts →
	Exact match “Claro Chile es filial de América Móvil, el tercer operador de telecomunicaciones en el mundo y el más grande de Latinoamérica.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Claro Argentina	Exact match	Buenos Aires, ArgentinaHQ recorded Nov 6, 2026	1,001-5,000	5,641 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 · Nov 6, 2026 · View company records in RevenueBase
17	Cable ONE	Exact match	Phoenix, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	5,608 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 · Nov 6, 2026 · View company records in RevenueBase
18	Dialog Axiata PLC	Exact match	Colombo 2, Sri LankaHQ recorded Nov 6, 2026	1,001-5,000	5,555 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 · Nov 6, 2026 · View company records in RevenueBase
19	Icomon Tecnologia Ltda	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	10001+	5,504 contacts →
	Exact match “A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Tunisie Telecom	Exact match	Tunis, TunisiaHQ recorded Nov 6, 2026	5,001-10,000	5,429 contacts →
	Exact match “Tunisie Telecom est parmi les pionniers des grands opérateurs Telecom de la région.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Vodafoneziggo	Exact match	Utrecht, NetherlandsHQ recorded Nov 6, 2026	5,001-10,000	5,245 contacts →
	Exact match “VodafoneZiggo is een krachtenbundeling van twee sterke Nederlandse bedrijven.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Spark NEW Zealand	Exact match	Cbd, New ZealandHQ recorded Nov 6, 2026	5,001-10,000	4,233 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 · Nov 6, 2026 · View company records in RevenueBase
23	Wind TRE	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	5,001-10,000	4,071 contacts →
	Exact match “WINDTRE è l’operatore italiano che offre connessioni, energia e prodotti assicurativi*.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	A1 Telekom Austria AG	Exact match	Vienna, AustriaHQ recorded Nov 6, 2026	5,001-10,000	3,922 contacts →
	Exact match “A1 – Internet, Voice, TV and IT-Services from One Source A1 is Austria’s leading communications provider, encompassing more than 5.3 million mobile communications customers and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Omantel	Exact match	Muscat, OmanHQ recorded Nov 6, 2026	1,001-5,000	3,908 contacts →
	Exact match “Omantel is the leading and main provider of integrated telecommunication solutions in Oman.” Recorded in the RevenueBase company graph · Nov 6, 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 “business telecom services”. 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 17,848 business telecom services worldwide

See the full list, filter by size, metro and specialty, and access 156,706 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Business telecom services worldwide at a glance

As of Nov 6, 2026

15.4%Verified-email coverage

56.9Average contacts per company

11-50Median size (employees)

1.4%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

7,420

11-50

6,715

51-200

2,230

201-500

628

501-1,000

242

1,001-5,000

249

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 business telecom services are linked below.
What qualifies: Company records worldwide whose business descriptions match “business telecom services” 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 156,706 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 November 6, 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.

Business telecom services by location

98 lists · largest first

Every Business telecom services 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 “business telecom services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business telecom services are there worldwide?

RevenueBase identified 17,848 company matches for business telecom services worldwide as of November 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 business telecom services?

The United States leads with 3,685 companies, followed by the United Kingdom (1,800) and Brazil (1,646). Every business telecom services list by country and city is linked on this page.

Which city has the most business telecom services?

Sao Paulo leads with 257 company records, followed by London (254) and New York (87).

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 156,706 professional contacts with verified work emails tracked across these 17,848 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 November 6, 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.