Company lists · Data refreshed November 2026

Top 25 Telecommunications system integrators worldwide

Name: Telecommunications system integrators worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 28,865 companies tracked

RevenueBase identified 28,865 company matches for telecommunications system integrators worldwide as of November 2026 and tracks 663,674 professional contacts across them, including 146,028 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for telecommunications system integrators 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 telecommunications system integrators 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

28,865Companies

663,674Contacts tracked

146,028Verified emails

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The 25 largest telecommunications system integrators worldwide

Ranked by team size

Top 25 of 28,865 company matches for telecommunications system integrators 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	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
2	Serede	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	10001+	8,708 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 · Nov 6, 2026 · View company records in RevenueBase
3	Convergint	Exact match	Hoffman Estates, IL, United StatesHQ recorded Nov 6, 2026	10001+	6,031 contacts →
	Exact match “Convergint is a global systems integrator focused on delivering results for our customers through unparalleled service excellence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Circet	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	4,138 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 · Nov 6, 2026 · View company records in RevenueBase
5	Softcat	Exact match	Marlow, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	3,073 contacts →
	Exact match “Softcat is a leading provider of IT infrastructure to corporate and public sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Airtel Business	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	10001+	2,862 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 · Nov 6, 2026 · View company records in RevenueBase
7	Procisa DO Brasil	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,852 contacts →
	Exact match “Prazer, somos a Procisa do Brasil!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Automated Systems Design, INC	Exact match	Alpharetta, GA, United StatesHQ recorded Nov 6, 2026	n/a	2,754 contacts →
	Exact match “Since 1987, Automated Systems Design, Inc.(ASD®) a five-time Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Velocis Systems Private Limited	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,731 contacts →
	Exact match “As one of India’s leading system integrators, Velocis partners with organizations to turn technology into a catalyst for measurable business value.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Allied Digital	Exact match	Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,730 contacts →
	Exact match “Allied Digital Services is a globally recognized leader in Digital Transformation and a Master Systems Integrator, with over four decades of proven experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Spread Tecnologia	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,714 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 · Nov 6, 2026 · View company records in RevenueBase
12	SVA System Vertrieb Alexander Gmbh	Exact match	Wiesbaden, GermanyHQ recorded Nov 6, 2026	1,001-5,000	2,686 contacts →
	Exact match “SVA is one of the leading system integrators in Germany.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Sirti S.P.A	Exact match	Sesto San Giovanni (mi), ItalyHQ recorded Nov 6, 2026	1,001-5,000	2,442 contacts →
	Exact match “Sirti is Italy's leading technology company in the design and production of network infrastructures and telecoms system integration.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Granite Telecommunications	Exact match	Quincy, MA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,395 contacts →
	Exact match “Granite is a dynamic and rapidly growing company serving the exciting and demanding Telecommunications market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Sogetrel	Exact match	Issy Les Moulineaux, FranceHQ recorded Nov 6, 2026	1,001-5,000	2,356 contacts →
	Exact match “En première ligne de la transformation numérique des entreprises et des territoires, le Groupe Sogetrel est spécialisé dans les services aux infrastructures numériques et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	LCC	Exact match	Mclean, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,335 contacts →
	Exact match “In Feb.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Kddi Corporation	Exact match	Tokyo, JapanHQ recorded Nov 6, 2026	10001+	2,238 contacts →
	Exact match “We are Japan’s global telecommunications pioneer and a Global Fortune 500 company, providing our international customer base with data centers, networks, content delivery, system…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	IES Communications	Exact match	Tempe, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,994 contacts →
	Exact match “IES Communications, a division of IES Holdings, Inc.(NASDAQ: IESC), is a national technology infrastructure integrator.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Unifique	Exact match	Timbó, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,962 contacts →
	Exact match “Somos uma empresa de telecomunicações com 28 anos de atuação.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Camusat	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,852 contacts →
	Exact match “Camusat is one of the market leaders in the implementation of telecom infrastructures and one of the most experienced network developers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	PT Berca Hardayaperkasa	Exact match	Jakarta Pusat, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	1,772 contacts →
	Exact match “Since its establishment in 1990, PT.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Consort Group	Exact match	Paris, FranceHQ recorded Nov 6, 2026	1,001-5,000	1,758 contacts →
	Exact match “Acteur de référence des systèmes d’information augmentés par l’intégration stratégique de la data, Consort Group accompagne les entreprises pour leur permettre de valoriser ce…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Telecon	Exact match	Montreal, QC, CanadaHQ recorded Nov 6, 2026	1,001-5,000	1,658 contacts →
	Exact match “From a regional telecom networks builder in 1967 in Quebec (Canada), Telecon has grown into a world-class industry-leading telecom networks design, infrastructure and connectivity…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	GAMMA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,631 contacts →
	Exact match “Gamma Communications is a leading provider of technology-based communication solutions across Europe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Tulip Telecom	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	1,001-5,000	1,601 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

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 “telecommunications system integrators”. 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 28,865 telecommunications system integrators worldwide

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Telecommunications system integrators worldwide at a glance

As of Nov 6, 2026

22.0%Verified-email coverage

23.0Average contacts per company

11-50Median size (employees)

1.2%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11,245

11-50

11,732

51-200

3,988

201-500

959

501-1,000

345

1,001-5,000

235

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 telecommunications system integrators are linked below.
What qualifies: Company records worldwide whose business descriptions match “telecommunications system integrators” 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 146,028 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.

Telecommunications system integrators by location

176 lists · largest first

Every Telecommunications system integrators 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 “telecommunications system integrators”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many telecommunications system integrators are there worldwide?

RevenueBase identified 28,865 company matches for telecommunications system integrators 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?

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

Which country has the most telecommunications system integrators?

The United States leads with 5,647 companies, followed by Brazil (1,416) and India (1,403). Every telecommunications system integrators list by country and city is linked on this page.

Which city has the most telecommunications system integrators?

Sao Paulo leads with 350 company records, followed by Dubai (288) and Riyadh (200).

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 146,028 professional contacts with verified work emails tracked across these 28,865 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.