Company lists · Data refreshed September 2026

Top 25 Telecom managed service providers worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 14,139 companies tracked

RevenueBase identified 14,139 company matches for telecom managed service providers worldwide as of September 2026 and tracks 721,656 professional contacts across them, including 112,993 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for telecom managed 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 29, 2026. Country and city lists for telecom managed 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 29, 2026 How this list was built

14,139Companies

721,656Contacts tracked

112,993Verified emails

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The 25 largest telecom managed service providers worldwide

Ranked by team size

Top 25 of 14,139 company matches for telecom managed service providers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 29, 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 29, 2026 · View company records in RevenueBase
2	Airtel	Exact match	Gurgaon, IndiaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
3	Telefónica	Exact match	Madrid, SpainHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
4	Tata Communications	Exact match	Mumbai, IndiaHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
5	Telecom Egypt	Exact match	Smart Village, EgyptHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
6	Verizon Business	Exact match	Basking Ridge, NJ, United StatesHQ recorded Sep 29, 2026	10001+	12,837 contacts →
	Exact match “You’re more than a business, agency or organization leader.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7	Turkcell	Exact match	Istanbul, TürkiyeHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
8	Serede	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 29, 2026	10001+	8,011 contacts →
	Exact match “A Serede é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom, fundada em 06 de agosto de 2007.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9	Windstream	Exact match	Little Rock, AR, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
10	Vodafone Business	Exact match	London, United KingdomHQ recorded Sep 29, 2026	10001+	6,767 contacts →
	Exact match “Vodafone Business is part of the Vodafone Group.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11	Cable ONE	Exact match	Phoenix, AZ, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
12	Icomon Tecnologia Ltda	Exact match	São Paulo, BrazilHQ recorded Sep 29, 2026	10001+	4,895 contacts →
	Exact match “A Icomon atua há 37 anos com alta performance em tecnologia e telecomunicações.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13	Spark NEW Zealand	Exact match	Cbd, New ZealandHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
14	Circet	Exact match	Paris, FranceHQ recorded Sep 29, 2026	10001+	3,901 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15	Omantel	Exact match	Muscat, OmanHQ recorded Sep 29, 2026	1,001-5,000	3,670 contacts →
	Exact match “Omantel is the leading and main provider of integrated telecommunication solutions in Oman.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16	Spectrum Business	Exact match	Stamford, CT, United StatesHQ recorded Sep 29, 2026	10001+	3,044 contacts →
	Exact match “Our story starts with understanding that connectivity powers everything you do, and we make it stronger.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17	GTL Limited	Exact match	Navi Mumbai, IndiaHQ recorded Sep 29, 2026	1,001-5,000	2,780 contacts →
	Exact match “GTL, a Global Group Enterprise, is a leading Network Services company, offering services and solutions to address the Network Life Cycle requirements of Telecom Operators…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18	Airtel Business	Exact match	Gurgaon, IndiaHQ recorded Sep 29, 2026	10001+	2,760 contacts →
	Exact match “The B2B arm of Bharti Airtel, we are India's leading provider of secure and reliable connectivity, technology, and communications solutions.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19	Procisa DO Brasil	Exact match	São Paulo, BrazilHQ recorded Sep 29, 2026	1,001-5,000	2,538 contacts →
	Exact match “Prazer, somos a Procisa do Brasil!” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20	Spread Tecnologia	Exact match	São Paulo, BrazilHQ recorded Sep 29, 2026	1,001-5,000	2,521 contacts →
	Exact match “With over 30 years of experience in Information and Communication Technology market, the Spread has extensive experience and expertise in the field and has the challenge of…” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21	Starhub	Exact match	SingaporeHQ recorded Sep 29, 2026	1,001-5,000	2,492 contacts →
	Exact match “StarHub is a leading homegrown Singapore company that connects people, businesses and communities to the possibilities of the digital world.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22	Granite Telecommunications	Exact match	Quincy, MA, United StatesHQ recorded Sep 29, 2026	1,001-5,000	2,270 contacts →
	Exact match “Granite is a dynamic and rapidly growing company serving the exciting and demanding Telecommunications market.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23	LCC	Exact match	Mclean, VA, United StatesHQ recorded Sep 29, 2026	5,001-10,000	2,193 contacts →
	Exact match “In Feb.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24	VERO	Exact match	Sao Paulo, BrazilHQ recorded Sep 29, 2026	1,001-5,000	2,162 contacts →
	Exact match “Somos a Vero, uma empresa de telecomunicações brasileira.” Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25	Claro Guatemala	Exact match	GuatemalaHQ recorded Sep 29, 2026	1,001-5,000	2,102 contacts →
	Exact match “Bienvenido a Claro Guatemala Claro es la empresa líder en brindar soluciones Integrales de calidad en comunicaciones, promoviendo la preferencia de nuestros clientes, generando…” Recorded in the RevenueBase company graph · Sep 29, 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 “telecom managed 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 14,139 telecom managed service providers worldwide

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Telecom managed service providers worldwide at a glance

As of Sep 29, 2026

15.7%Verified-email coverage

51.0Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Sao Paulo

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

5,861

11-50

5,397

51-200

1,852

201-500

493

501-1,000

209

1,001-5,000

190

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 telecom managed service providers are linked below.
What qualifies: Company records worldwide whose business descriptions match “telecom managed 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 112,993 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 29, 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.

Telecom managed service providers by location

69 lists · largest first

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

How many telecom managed service providers are there worldwide?

RevenueBase identified 14,139 company matches for telecom managed 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 telecom managed service providers?

The United States leads with 3,055 companies, followed by the United Kingdom (1,218) and Brazil (1,139). Every telecom managed service providers list by country and city is linked on this page.

Which city has the most telecom managed service providers?

Sao Paulo leads with 209 company records, followed by London (183) and Madrid (83).

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 112,993 professional contacts with verified work emails tracked across these 14,139 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 29, 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.