Company lists · Data refreshed September 2026

Top 25 Telecommunications installation companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 12,251 companies tracked

RevenueBase identified 12,251 telecommunications installation companies worldwide as of September 2026 and tracks 315,184 professional contacts across them, including 66,529 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.

This list covers telecommunications installation companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026. Country and city lists for telecommunications installation companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

12,251Companies

315,184Contacts tracked

66,529Verified emails

0Mobile numbers

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The 25 largest telecommunications installation companies worldwide

Ranked by team size

Top 25 of 12,251 telecommunications installation companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to telecommunications installation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Spectrum	Indirect evidence	Stamford, NC, United StatesHQ checked Sep 19, 2026	10001+	26,596 contacts →
	Indirect evidence “Spectrum is a suite of advanced communications services offered by Charter Communications, Inc.(NASDAQ:CHTR), a leading broadband connectivity company available to more than 57…” Source: RevenueBase Database · checked Sep 19, 2026
2	Serede	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	10001+	8,011 contacts →
	Indirect evidence “A Serede é uma empresa prestadora de serviços de implantação e manutenção em redes de Telecom, fundada em 06 de agosto de 2007.” Source: RevenueBase Database · checked Sep 19, 2026
3	Windstream	Indirect evidence	Little Rock, AR, United StatesHQ checked Sep 19, 2026	10001+	7,275 contacts →
	Indirect evidence “Windstream and Uniti have merged - Please follow us at Uniti Group, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
4	Cable ONE	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	6,379 contacts →
	Indirect evidence “Cable One Business offers scalable, reliable, and efficient solutions so that the businesses we serve can be successful.” Source: RevenueBase Database · checked Sep 19, 2026
5	Claro Argentina	Indirect evidence	Ciudad Autónoma De Buenos Aires, ArgentinaHQ checked Sep 19, 2026	1,001-5,000	5,204 contacts →
	Indirect evidence “Te damos la Bienvenida a Claro Argentina Somos parte de América Móvil, uno de los grupos de telecomunicaciones más importantes a nivel mundial, con presencia en países de América…” Source: RevenueBase Database · checked Sep 19, 2026
6	Shaw Communications	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 19, 2026	10001+	4,209 contacts →
	Indirect evidence “Shaw and Rogers have come together to continue expanding connectivity, supporting local communities and bringing you the latest 5G and fibre network technology.” Source: RevenueBase Database · checked Sep 19, 2026
7	Spark NEW Zealand	Indirect evidence	Cbd, New ZealandHQ checked Sep 19, 2026	5,001-10,000	4,023 contacts →
	Indirect evidence “In today’s fast-paced digital world, Spark is here to help all New Zealanders stay ahead.” Source: RevenueBase Database · checked Sep 19, 2026
8	Circet	Indirect evidence	Paris, FranceHQ checked Sep 19, 2026	10001+	3,901 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
9	Mastec Communications Group	Indirect evidence	Coral Gables, FL, United StatesHQ checked Sep 19, 2026	5,001-10,000	3,207 contacts →
	Indirect evidence “MasTec Communications Group (MCG) is a division of MasTec that provides comprehensive services and turnkey solutions for Telecom operators.” Source: RevenueBase Database · checked Sep 19, 2026
10	Zayo Group	Indirect evidence	Denver, CO, United StatesHQ checked Sep 19, 2026	5,001-10,000	2,948 contacts →
	Indirect evidence “For more than 18 years, Zayo Group of companies has helped the world’s most ambitious organizations build the infrastructure behind what’s next.” Source: RevenueBase Database · checked Sep 19, 2026
11	Procisa DO Brasil	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,538 contacts →
	Indirect evidence “Prazer, somos a Procisa do Brasil!” Source: RevenueBase Database · checked Sep 19, 2026
12	Hughes	Indirect evidence	Germantown, MD, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,459 contacts →
	Indirect evidence “Hughes Network Systems, LLC (HUGHES), an innovator in satellite and multi-transport technologies and networks since 1971, provides broadband equipment and services; managed…” Source: RevenueBase Database · checked Sep 19, 2026
13	Sogetrel	Indirect evidence	Issy Les Moulineaux, FranceHQ checked Sep 19, 2026	1,001-5,000	2,285 contacts →
	Indirect evidence “En première ligne de la transformation numérique des entreprises et des territoires, le Groupe Sogetrel est spécialisé dans les services aux infrastructures numériques et…” Source: RevenueBase Database · checked Sep 19, 2026
14	Granite Telecommunications	Partial evidence	Quincy, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,270 contacts →
	Partial evidence “Granite is a dynamic and rapidly growing company serving the exciting and demanding Telecommunications market.” Source: RevenueBase Database · checked Sep 19, 2026
15	VERO	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,162 contacts →
	Indirect evidence “Somos a Vero, uma empresa de telecomunicações brasileira.” Source: RevenueBase Database · checked Sep 19, 2026
16	Infinera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,959 contacts →
	Indirect evidence “Infinera is now part of Nokia.” Source: RevenueBase Database · checked Sep 19, 2026
17	Unifique	Indirect evidence	Timbó, BrazilHQ checked Sep 19, 2026	1,001-5,000	1,807 contacts →
	Indirect evidence “Somos uma empresa de telecomunicações com 28 anos de atuação.” Source: RevenueBase Database · checked Sep 19, 2026
18	IES Communications	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,800 contacts →
	Indirect evidence “IES Communications a division of IES (NASDAQ: IESC) provides each client with a team of highly qualified dedicated professionals that deliver superior quality and cost effective…” Source: RevenueBase Database · checked Sep 19, 2026
19	Congruex	Indirect evidence	Boulder, CO, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,676 contacts →
	Indirect evidence “Congruex was formed in 2017 to take advantage of historic demand for digital connectivity.” Source: RevenueBase Database · checked Sep 19, 2026
20	Kemp & Lauritzen A S	Partial evidence	Albertslund, DenmarkHQ checked Sep 19, 2026	1,001-5,000	1,628 contacts →
	Partial evidence “Kemp & Lauritzen arbejder med tekniske installationer med stor spændvidde og høj grad af specialisering.” Source: RevenueBase Database · checked Sep 19, 2026
21	Telecon	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 19, 2026	1,001-5,000	1,573 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
22	Pt. Mora Telematika Indonesia TBK	Partial evidence	Jakarta Pusat, IndonesiaHQ checked Sep 19, 2026	1,001-5,000	1,510 contacts →
	Partial evidence “Moratelindo is part of PT Ekamas Mora RepublikTbk (MoraRepublic), one of Indonesia’s largest integrated infrastructure Telecommunication and connectivity providers.” Source: RevenueBase Database · checked Sep 19, 2026
23	Hotwire Communications LTD	Partial evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,420 contacts →
	Partial evidence “Hotwire Communications is a national leader in fiber optic technology, delivering advanced, customized telecommunications solutions to residential, commercial, senior-living…” Source: RevenueBase Database · checked Sep 19, 2026
24	Alloha Fibra	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	5,001-10,000	1,397 contacts →
	Indirect evidence “Somos a quarta maior empresa em número de assinantes e extensão de fibra óptica do País e o maior player independente neste segmento.” Source: RevenueBase Database · checked Sep 19, 2026
25	Wachter, INC	Partial evidence	Lenexa, KS, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,237 contacts →
	Partial evidence “Wachter is on the cutting-edge of technology and infrastructure installation and has been since 1930.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: telecommunications installation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names telecommunications installation companies.
Partial evidence: Its own public description names part of telecommunications installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name telecommunications installation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 12,251 telecommunications installation companies worldwide

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Telecommunications installation companies worldwide at a glance

As of Sep 19, 2026

21.1%Verified-email coverage

25.7Average contacts per company

11-50Median size (employees)

1.3%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

5,057

11-50

4,662

51-200

1,664

201-500

418

501-1,000

154

1,001-5,000

137

5,001-10,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among telecommunications installation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: 35 countries, largest first: the United States, Brazil, the United Kingdom, Italy, Spain, Germany, France, Canada, Australia, the Netherlands and 25 more. Country and city lists for telecommunications installation companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “telecommunications installation companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names telecommunications installation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among telecommunications installation companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 66,529 across the full list. 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 19, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Telecommunications installation companies by location

43 lists · largest first

Every Telecommunications installation companies 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 Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names telecommunications installation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many telecommunications installation companies are there worldwide?

RevenueBase identified 12,251 telecommunications installation companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Spectrum, headquartered in Charlotte, tops this list with the largest team on record.

Which country has the most telecommunications installation companies?

The United States leads with 3,275 companies, followed by Brazil (1,231) and the United Kingdom (874). Every telecommunications installation companies list by country and city is linked on this page.

Which city has the most telecommunications installation companies?

Sao Paulo leads with 164 headquartered companies, followed by Madrid (83) and Rio De Janeiro (81).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 66,529 verified decision-maker contacts tracked across these 12,251 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 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 Smart Search, 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.