Company lists · Data refreshed November 2026

Top 25 Data communications contractors worldwide

Name: Data communications contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 18,456 companies tracked

RevenueBase identified 18,456 company matches for data communications contractors worldwide as of November 2026 and tracks 348,491 professional contacts across them, including 80,195 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for data communications contractors 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 data communications contractors 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

18,456Companies

348,491Contacts tracked

80,195Verified emails

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The 25 largest data communications contractors worldwide

Ranked by team size

Top 25 of 18,456 company matches for data communications contractors 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	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
2	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
3	Rosendin	Exact match	San Jose, NC, United StatesHQ recorded Nov 6, 2026	10001+	4,838 contacts →
	Exact match “Since 1919, Rosendin has created a reputation for building quality electrical and communications installations, building value for clients, and building people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Panduit	Exact match	Tinley Park, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,144 contacts →
	Exact match “Panduit, a global leader in electrical and network infrastructure solutions, thrives on ingenuity and enterprise.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	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
6	Black BOX	Exact match	Plano, United StatesHQ recorded Nov 6, 2026	1,001-5,000	4,014 contacts →
	Exact match “Black Box is a global leader in digital infrastructure solutions, delivering network and system integration, managed services, and technology products to Fortune 100 and top…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	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
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	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
10	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
11	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
12	Grupo RCS	Exact match	Brasilia, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,973 contacts →
	Exact match “A RCS é uma empresa de Engenharia especializada em oferecer serviços técnicos de missão crítica com alta tecnologia aplicada, para clientes que necessitam manter suas atividades…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Congruex	Exact match	Boulder, CO, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,715 contacts →
	Exact match “Congruex was formed in 2017 to take advantage of historic demand for digital connectivity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	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
15	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
16	Pt. Mora Telematika Indonesia TBK	Exact match	Jakarta Pusat, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	1,573 contacts →
	Exact match “Moratelindo is part of PT Ekamas Mora RepublikTbk (MoraRepublic), one of Indonesia’s largest integrated infrastructure Telecommunication and connectivity providers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Hotwire Communications LTD	Exact match	Fort Lauderdale, FL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,493 contacts →
	Exact match “Hotwire Communications is a national leader in fiber optic technology, delivering advanced, customized telecommunications solutions to residential, commercial, senior-living…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Aerial Telecom Solutions	Exact match	Mohali, IndiaHQ recorded Nov 6, 2026	5,001-10,000	1,480 contacts →
	Exact match “Aerial Telecom Solutions Private Limited is a global systems integrator and technology partner, driving next-generation connectivity and digital transformation across diverse…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Italtel	Exact match	Milan, GermanyHQ recorded Nov 6, 2026	1,001-5,000	1,396 contacts →
	Exact match “We help our customers to choose the most suitable solutions for the characteristics of their business, to develop the traditional communication technologies they already have in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	MJ Quinn	Exact match	Prescot, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,373 contacts →
	Exact match “At MJ Quinn we believe in creating great connections, with our customers, our people and our world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Wachter, INC	Exact match	Lenexa, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,356 contacts →
	Exact match “Wachter is on the cutting-edge of technology and infrastructure installation and has been since 1930.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	J Brand LTD	Exact match	London, United KingdomHQ recorded Nov 6, 2026	n/a	1,265 contacts →
	Exact match “Originally set up in 1933 by Joseph Brand as an electrical contracting and repair business in Margaret Street W1, the company today still operates today with the same guiding…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Kelly Group	Exact match	Wembley, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	1,204 contacts →
	Exact match “Established in 1985 to support the emerging UK cable television market, Kelly Group has diversified to meet the needs of our clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Líder Telecom Ltda	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	1,172 contacts →
	Exact match “A Líder Telecom oferece aos clientes serviços de assessoria necessária ao estabelecimento de seu planejamento técnico e operacional para atendimento a redes corporativas de…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	CCI Systems	Exact match	Iron Mountain, MI, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,157 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 · 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 “data communications contractors”. 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 18,456 data communications contractors worldwide

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Data communications contractors worldwide at a glance

As of Nov 6, 2026

23.0%Verified-email coverage

18.9Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

7,583

11-50

7,120

51-200

2,494

201-500

615

501-1,000

209

1,001-5,000

160

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 data communications contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “data communications contractors” 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 80,195 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.

Data communications contractors by location

96 lists · largest first

Every Data communications contractors 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 “data communications contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many data communications contractors are there worldwide?

RevenueBase identified 18,456 company matches for data communications contractors 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?

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

Which country has the most data communications contractors?

The United States leads with 4,373 companies, followed by the United Kingdom (1,297) and Brazil (1,006). Every data communications contractors list by country and city is linked on this page.

Which city has the most data communications contractors?

Sao Paulo leads with 212 company records, followed by London (139) and Houston (93).

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 80,195 professional contacts with verified work emails tracked across these 18,456 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.