Company lists · Data refreshed November 2026

Top 25 Managed communication service providers worldwide

RevenueBase identified 1,239 company matches for managed communication service providers worldwide as of November 2026 and tracks 36,004 professional contacts across them, including 12,294 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for managed 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 November 6, 2026. Country and city lists for managed 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 Nov 6, 2026 How this list was built
1,239Companies
36,004Contacts tracked
12,294Verified emails
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The 25 largest managed communication service providers worldwide

Ranked by team size
Top 25 of 1,239 company matches for managed communication service providers 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBelmont, United StatesHQ recorded Nov 6, 20265,001-10,0006,795 contacts →

Exact match

“RingCentral, Inc.(NYSE: RNG) is a global leader in AI–powered customer engagement, delivering an integrated platform for business phone, SMS, contact center, workforce engagement…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchKanata, ON, CanadaHQ recorded Nov 6, 20261,001-5,0003,738 contacts →

Exact match

“Powering more than 2 billion connections every day, Mitel helps businesses connect, collaborate and take care of customers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNew Delhi, IndiaHQ recorded Nov 6, 20261,001-5,0001,601 contacts →

Exact match

“Tulip Telecom Ltd.(BSE: 532691/NSE: TULIP) is India’s leading Enterprise Communications Service provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRaleigh, United StatesHQ recorded Nov 6, 20261,001-5,0001,199 contacts →

Exact match

“Bandwidth is the universal communications platform that simplifies how businesses deliver integrated global experiences.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchVancouver, WA, United StatesHQ recorded Nov 6, 2026501-1,0001,123 contacts →

Exact match

“Integra is Allstream.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchFareham, United KingdomHQ recorded Nov 6, 2026501-1,000715 contacts →

Exact match

“Onecom is the UK’s leading business telecoms and cloud communications provider managing over a million services for business customers - delivering communication services and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchConcord, FL, United StatesHQ recorded Nov 6, 202651-200455 contacts →

Exact match

“NHC is THE communications STACK provider™.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026501-1,000447 contacts →

Exact match

“We unleash human momentum with collaboration, connectivity, and communications technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026201-500443 contacts →

Exact match

“Fusion Connect delivers innovative, cloud communications services that transform business infrastructure into a foundation for lasting success.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTacoma, WA, United StatesHQ recorded Nov 6, 2026201-500392 contacts →

Exact match

“With three decades of expertise in the enterprise communications space, Continuant stands out as a seasoned Managed Services Provider, Systems Integrator, and Technology…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500370 contacts →

Exact match

“Maintel is a communications managed services provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchHoofddorp, NetherlandsHQ recorded Nov 6, 2026501-1,000340 contacts →

Exact match

“Jouw gids in de complexe wereld van IT & Communication.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchClichy, FranceHQ recorded Nov 6, 2026201-500327 contacts →

Exact match

“Keyyo développe de nouveaux usages de communication pour les entreprises, notamment avec la voix sur IP.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchBad Sobernheim, GermanyHQ recorded Nov 6, 2026501-1,000265 contacts →

Exact match

“Welcome to Medialine AG – your IT & C system house.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500235 contacts →

Exact match

“MBA Group is a UK-based customer communications and experience group, built on a simple belief: the most effective communication happens when human expertise and intelligent…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchPortsmouth, United KingdomHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“Aerial Direct are an award-winning, UK-based, managed communications expert.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHyderabad, IndiaHQ recorded Nov 6, 2026201-500186 contacts →

Exact match

“Our mission is to create meaningful experiences by unifying teams, customers & businesses, at scale.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchFairlawn, IL, United StatesHQ recorded Nov 6, 202651-200184 contacts →

Exact match

“FirstComm delivers smarter business communications and IT solutions that help organizations connect, collaborate, and scale with confidence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPlano, TX, United StatesHQ recorded Nov 6, 202651-200176 contacts →

Exact match

“Edge is an innovative provider of communications, data, systems security and business technology services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchDüsseldorf, GermanyHQ recorded Nov 6, 2026201-500171 contacts →

Exact match

“Transform your business DeTeWe Communications have many years of experience in delivering tailored, integrated solutions for their clients internationally 365 days a year, 24…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSunnyvale, CA, United StatesHQ recorded Nov 6, 202651-200170 contacts →

Exact match

“Zultys is a premier provider of omnichannel, Unified Communications, hosted business phone services and premise-based communications systems.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchBrasília, BrazilHQ recorded Nov 6, 202651-200151 contacts →

Exact match

“A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchClichy, FranceHQ recorded Nov 6, 2026501-1,000146 contacts →

Exact match

“Bienvenue dans le monde des communications d’entreprises nouvelles générations : connectées, intelligentes, flexibles et sécurisées.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 2026201-500146 contacts →

Exact match

“For over 25 years, Cypress Communications has been helping small-to-medium enterprises (SMEs) connect, communicate, collaborate and continue® with a range of fully hosted and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNew Delhi, IndiaHQ recorded Nov 6, 202651-200139 contacts →

Exact match

“Gurusons Communications Private Limitedis the most trusted Resource for Voice, Chat, Video and Data communication management solutions in the country.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,239 managed communication service providers worldwide

See the full list, filter by size, metro and specialty, and access 12,294 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Managed communication service providers worldwide at a glance

As of Nov 6, 2026
34.1%Verified-email coverage
29.1Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
493
11-50
526
51-200
151
201-500
31
501-1,000
19
1,001-5,000
9
5,001-10,000
2
10001+
1

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 managed communication service providers are linked below.
What qualifies
Company records worldwide whose business descriptions match “managed 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 12,294 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.

Managed communication service providers by location

11 lists · largest first

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

How many managed communication service providers are there worldwide?

RevenueBase identified 1,239 company matches for managed communication service providers 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?

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

Which country has the most managed communication service providers?

The United States leads with 384 companies, followed by the United Kingdom (200) and Australia (56). Every managed communication service providers list by country and city is linked on this page.

Which city has the most managed communication service providers?

London leads with 32 company records, followed by Dallas (9) and Houston (9).

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 12,294 professional contacts with verified work emails tracked across these 1,239 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.