Company lists · Data refreshed September 2026

Top 25 Enterprise telecom management firms worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 13,582 companies tracked

RevenueBase identified 13,582 company matches for enterprise telecom management firms worldwide as of September 2026 and tracks 247,778 professional contacts across them, including 50,286 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 management firms 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 telecom management firms 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

13,582Companies

247,778Contacts tracked

50,286Verified emails

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The 25 largest enterprise telecom management firms worldwide

Ranked by team size

Top 25 of 13,582 company matches for enterprise telecom management firms 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	Serede	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
2	Icomon Tecnologia Ltda	Exact match	São Paulo, BrazilHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3	Spectrum Business	Exact match	Stamford, CT, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4	Sysnet Global Technologies PVT LTD	Exact match	New Delhi, IndiaHQ recorded Sep 28, 2026	1,001-5,000	2,797 contacts →
	Exact match “Think IT, Think Sysnet.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	GTL Limited	Exact match	Navi Mumbai, IndiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6	Airtel Business	Exact match	Gurgaon, IndiaHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
7	Spread Tecnologia	Exact match	São Paulo, BrazilHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8	Granite Telecommunications	Exact match	Quincy, MA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
9	Aforeserve.com LTD	Exact match	Noida, IndiaHQ recorded Sep 28, 2026	1,001-5,000	2,133 contacts →
	Exact match “Aforeserve delivers IT infrastructure services, field support, and managed operations for enterprises across India.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	GAMMA	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	1,568 contacts →
	Exact match “Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Tulip Telecom	Exact match	New Delhi, IndiaHQ recorded Sep 28, 2026	1,001-5,000	1,481 contacts →
	Exact match “Tulip Telecom Ltd.(BSE: 532691/NSE: TULIP) is India’s leading Enterprise Communications Service provider.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Tangoe	Exact match	Indianapolis, IN, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,367 contacts →
	Exact match “Tangoe pioneered technology expense management more than 20 years ago, and today we’re the industry leader driving innovation through AI-powered automation, 70+ patents, and the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	FLŌ Networks	Exact match	El Paso, TX, United StatesHQ recorded Sep 28, 2026	501-1,000	1,250 contacts →
	Exact match “Today fast, flexible networks are the foundation of every successful organization.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Zelenza	Exact match	Madrid, SpainHQ recorded Sep 28, 2026	1,001-5,000	1,125 contacts →
	Exact match “En Zelenza somos líderes en servicios integrados TIC, Ingeniería de Redes Telco, Defensa y Seguridad y Customer Experience.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	CCI Systems	Exact match	Iron Mountain, MI, United StatesHQ recorded Sep 28, 2026	1,001-5,000	1,077 contacts →
	Exact match “CCI Systems is an employee-owned solution provider specializing in telecommunications, comprehensive network assessments, industry-leading engineering, drafting and design…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	SAKON	Exact match	Concord, MA, United StatesHQ recorded Sep 28, 2026	501-1,000	944 contacts →
	Exact match “Sakon helps enterprise clients in a wide range of industries control telecom spend and manage end-user devices more efficiently.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	NTG Clarity	Exact match	Markham, ON, CanadaHQ recorded Sep 28, 2026	501-1,000	876 contacts →
	Exact match “NTG CLARITY is a leader in delivering network, telecom, IT and infrastructure solutions to network service providers and medium and large enterprises.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Mundivox Communications	Exact match	São Paulo, BrazilHQ recorded Sep 28, 2026	501-1,000	819 contacts →
	Exact match “Com mais de 25 anos de experiência, a Mundivox é uma operadora licenciada pela Anatel, especializada em soluções integradas de comunicação para o mercado corporativo.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Kaizen IT Services Pvt. LTD	Exact match	Kolkata, IndiaHQ recorded Sep 28, 2026	501-1,000	807 contacts →
	Exact match “Kaizen is a premier IT Services company headquartered in Kolkata and having its presence in Pan India with 750 Plus Touch Points.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Bestel	Exact match	Nápoles, ItalyHQ recorded Sep 28, 2026	501-1,000	798 contacts →
	Exact match “Somos un equipo de expertos en Telecomunicaciones y Tecnologías de Información.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Wds-Sicap	Exact match	Baar, SwitzerlandHQ recorded Sep 28, 2026	n/a	777 contacts →
	Exact match “We are leading provider of telecom business intelligence and device management solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Asiatech CO	Exact match	Tehran, IranHQ recorded Sep 28, 2026	501-1,000	777 contacts →
	Exact match “Data Transmission company of Asiatech (#asiatech) was established in 2003 to provide IT-based services and obtained PAP license from the Communications Regulatory Authority (CRA)…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Calero	Exact match	Rochester, NY, United StatesHQ recorded Sep 28, 2026	1,001-5,000	742 contacts →
	Exact match “Calero is redefining how enterprises manage technology spend by turning insight into action through automated intelligence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Nunsys	Exact match	Paterna, SpainHQ recorded Sep 28, 2026	1,001-5,000	739 contacts →
	Exact match “NUNSYS es una empresa especializada en la Implantación de Soluciones Integrales de Tecnología.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Millenniumit ESP	Exact match	Colombo, Sri LankaHQ recorded Sep 28, 2026	201-500	723 contacts →
	Exact match “MillenniumIT ESP (MIT ESP) has always stood for purpose-driven technology solutions for businesses across the globe.” 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 telecom management firms”. 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 13,582 enterprise telecom management firms worldwide

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Enterprise telecom management firms worldwide at a glance

As of Sep 28, 2026

20.3%Verified-email coverage

18.2Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · Sao Paulo

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

6,186

11-50

5,051

51-200

1,596

201-500

403

501-1,000

141

1,001-5,000

119

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 telecom management firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “enterprise telecom management firms” 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 50,286 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 telecom management firms by location

74 lists · largest first

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

How many enterprise telecom management firms are there worldwide?

RevenueBase identified 13,582 company matches for enterprise telecom management firms 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?

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

Which country has the most enterprise telecom management firms?

The United States leads with 3,205 companies, followed by Brazil (1,053) and the United Kingdom (895). Every enterprise telecom management firms list by country and city is linked on this page.

Which city has the most enterprise telecom management firms?

Sao Paulo leads with 262 company records, followed by London (153) and Dubai (94).

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 50,286 professional contacts with verified work emails tracked across these 13,582 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.