Company lists · Data refreshed November 2026

Top 25 Telecommunications engineers worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 27,289 companies tracked

RevenueBase identified 27,289 company matches for telecommunications engineers worldwide as of November 2026 and tracks 744,429 professional contacts across them, including 142,166 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for telecommunications engineers 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 engineers 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

27,289Companies

744,429Contacts tracked

142,166Verified emails

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The 25 largest telecommunications engineers worldwide

Ranked by team size

Top 25 of 27,289 company matches for telecommunications engineers 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	Cyient	Exact match	Hyderabad, IndiaHQ recorded Nov 6, 2026	10001+	20,105 contacts →
	Exact match “Cyient is a global lifecycle engineering services company powering mission-critical industries from design to aftermarket across products, plants, and networks.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	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
4	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
5	Sify Technologies Limited	Exact match	Chennai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	7,202 contacts →
	Exact match “A Fortune India 500 company, Sify Technologies is India’s most comprehensive ICT service & solution provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	SPIE	Exact match	Cergy Pontoise Cedex, FranceHQ recorded Nov 6, 2026	10001+	5,848 contacts →
	Exact match “As the independent European leader in multi-technical services in the areas of energy and communications, SPIE supports its customers design, build, operate and maintain…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
8	Amaris Consulting Part Of Mantu	Exact match	Chêne-bourg, SwitzerlandHQ recorded Nov 6, 2026	5,001-10,000	5,223 contacts →
	Exact match “Amaris Consulting is an independent technology consulting firm providing guidance and solutions to businesses.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Groupe SII	Exact match	Paris, FranceHQ recorded Nov 6, 2026	10001+	5,212 contacts →
	Exact match “Le groupe SII est une société d’ingénierie et de conseil en technologies (ICT) et une entreprise de services numériques (ESN) créée en 1979 par Bernard HUVÉ, ingénieur de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Viavi Solutions	Exact match	Chandler, AZ, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,595 contacts →
	Exact match “VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	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
12	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
13	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
14	Proing	Exact match	Yumbo, ColombiaHQ recorded Nov 6, 2026	1,001-5,000	3,760 contacts →
	Exact match “Basados en nuestros talentos y buena actitud, desarrollamos la ingeniería para brindar un mejor presente y futuro.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Sunrise	Exact match	Glattpark (opfikon), SwitzerlandHQ recorded Nov 6, 2026	1,001-5,000	3,449 contacts →
	Exact match “Sunrise is Switzerland’s leading challenger in the telecommunications market and is listed on the SIX Swiss Exchange (SUNN).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Mastec Communications Group	Exact match	Coral Gables, FL, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,416 contacts →
	Exact match “MasTec Communications Group (MCG) is a division of MasTec that provides comprehensive services and turnkey solutions for Telecom operators.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Hfcl Limited	Exact match	New Delhi, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,333 contacts →
	Exact match “HFCL is a leading technology company specialising in creating digital networks for telcos, enterprises and governments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Tejas Networks	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,308 contacts →
	Exact match “Tejas Networks is a global broadband, optical and wireless networking company, with a focus on technology, innovation and R&D.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	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
20	Alten Italia	Exact match	Milan, ItalyHQ recorded Nov 6, 2026	1,001-5,000	3,042 contacts →
	Exact match “Il Gruppo ALTEN, leader europeo nella consulenza per le tecnologie avanzate in campo ingegneristico e ICT, è quotato alla Borsa di Parigi e vanta più di 57.700 collaboratori in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	GTL Limited	Exact match	Navi Mumbai, IndiaHQ recorded Nov 6, 2026	1,001-5,000	2,896 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 · Nov 6, 2026 · View company records in RevenueBase
22	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
23	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
24	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
25	Sielte SPA	Exact match	Rome, ItalyHQ recorded Nov 6, 2026	1,001-5,000	2,586 contacts →
	Exact match “Oltre Persone, distribuite su 21 Centri Operativi in tutta Italia, che ogni giorno installano, collaudano, gestiscono il commissioning e le manutenzioni, progettano, implementano…” 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 engineers”. 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 27,289 telecommunications engineers worldwide

See the full list, filter by size, metro and specialty, and access 142,166 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Telecommunications engineers worldwide at a glance

As of Nov 6, 2026

19.1%Verified-email coverage

27.3Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

10,837

11-50

10,341

51-200

3,846

201-500

1,110

501-1,000

409

1,001-5,000

318

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 engineers are linked below.
What qualifies: Company records worldwide whose business descriptions match “telecommunications engineers” 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 142,166 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 engineers by location

151 lists · largest first

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

How many telecommunications engineers are there worldwide?

RevenueBase identified 27,289 company matches for telecommunications engineers 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 engineers?

The United States leads with 3,634 companies, followed by Brazil (1,808) and the United Kingdom (1,746). Every telecommunications engineers list by country and city is linked on this page.

Which city has the most telecommunications engineers?

Sao Paulo leads with 361 company records, followed by London (222) and Madrid (179).

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 142,166 professional contacts with verified work emails tracked across these 27,289 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.