Company lists · Data refreshed September 2026

Top 25 Communication system integrators based in Brazil

Name: Communication system integrators based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 830 companies tracked

RevenueBase identified 830 communication system integrators headquartered in Brazil as of September 2026 and tracks 21,306 professional contacts across them, including 3,247 with verified work emails. Sao Paulo is the largest hub.

This list covers communication system integrators headquartered in Brazil, 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.

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

830Companies

21,306Contacts tracked

3,247Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest communication system integrators based in Brazil

Ranked by team size

Top 25 of 830 communication system integrators based in Brazil, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to communication system integrators: 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	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
2	Spread Tecnologia	Partial evidence	São Paulo, BrazilHQ checked Sep 19, 2026	1,001-5,000	2,521 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
3	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
4	Mundivox Communications	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	501-1,000	819 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 19, 2026
5	DDS Telecomunicações Ltda	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	518 contacts →
	Indirect evidence “A DDS é uma empresa de tecnologia especializada na integração de sistemas.” Source: RevenueBase Database · checked Sep 19, 2026
6	Maminfo	Indirect evidence	Campinas, BrazilHQ checked Sep 19, 2026	201-500	389 contacts →
	Indirect evidence “A MAMinfo é uma empresa de Consultoria e integradora de soluções em TI e telecomunicação, comercialização, instalação e suporte técnico para tecnologias de rede.” Source: RevenueBase Database · checked Sep 19, 2026
7	Engemon IT	Indirect evidence	Alto De Pinheiros/sp, BrazilHQ checked Sep 19, 2026	501-1,000	389 contacts →
	Indirect evidence “Somos uma Integradora de Tecnologia.” Source: RevenueBase Database · checked Sep 19, 2026
8	Hi-Mix Eletrônicos S A	Indirect evidence	Pato Branco, BrazilHQ checked Sep 19, 2026	501-1,000	325 contacts →
	Indirect evidence “Somos especialistas em integrar soluções de alta complexidade para diferentes segmentos da tecnologia.” Source: RevenueBase Database · checked Sep 19, 2026
9	IK	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	201-500	279 contacts →
	Indirect evidence “A IK Solution dispõe de diversas soluções inovadoras para seu negócio sair na frente.” Source: RevenueBase Database · checked Sep 19, 2026
10	A5 Solutions	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	201-500	240 contacts →
	Indirect evidence “Sobre a A5 Solutions Integradora de soluções líder no segmento de Contact Centers, Comunicações Unificadas e Redes Convergentes, a A5 Solutions atua no mercado há 10 anos.” Source: RevenueBase Database · checked Sep 19, 2026
11	ELO Telecomunicações E Construções Ltda	Indirect evidence	Aparecida De Goiania, BrazilHQ checked Sep 19, 2026	201-500	217 contacts →
	Indirect evidence “A ELO Telecomunicações e Construções Ltda é uma empresa especializada na prestação de serviços de transmissão nos seus mais variados campos.” Source: RevenueBase Database · checked Sep 19, 2026
12	Tecal Engenharia Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 19, 2026	201-500	183 contacts →
	Indirect evidence “Criada em 1994, a Tecal Soluções em Tecnologia, iniciou seus trabalhos como integradora Honeywell e hoje ocupa uma posição de destaque entre as empresas do setor de Automação…” Source: RevenueBase Database · checked Sep 19, 2026
13	Plantec Distribuidora	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	182 contacts →
	Indirect evidence “Desde 1986, a Plantec Distribuidora conecta integradores e revendedores a soluções completas em Comunicação Unificada, Segurança, Redes e Energia.” Source: RevenueBase Database · checked Sep 19, 2026
14	ADDED	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	162 contacts →
	Indirect evidence “A Added é uma integradora de soluções em tecnologia da informação localizada em São Paulo - SP.” Source: RevenueBase Database · checked Sep 19, 2026
15	Afline Manutenção E Instalação Ltda	Indirect evidence	Manaus, BrazilHQ checked Sep 19, 2026	201-500	154 contacts →
	Indirect evidence “Há 14 anos no mercado em prestações de serviços em Banda Larga, TV por assinatura, cabeamento estruturado, Call Center, proporcionando em atender melhor os cliente garantindo…” Source: RevenueBase Database · checked Sep 19, 2026
16	Hexait Service Solutions	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 19, 2026	201-500	149 contacts →
	Indirect evidence “A HexaIT Service Solutions é uma empresa especializada em serviços de Tecnologia da Informação, com foco principal em tecnologias de redes e telecomunicações, como Routing &…” Source: RevenueBase Database · checked Sep 19, 2026
17	Tecwise	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	201-500	146 contacts →
	Indirect evidence “With strategically positioned teams & offices in Chile and Brazil, TECWISE supports all of LATAM.” Source: RevenueBase Database · checked Sep 19, 2026
18	VONEX	Indirect evidence	São Paulo, BrazilHQ checked Sep 19, 2026	51-200	146 contacts →
	Indirect evidence “Fundado em 2005, o Grupo Vonex consolidou-se como um dos principais players em telecomunicações e tecnologia no Brasil.” Source: RevenueBase Database · checked Sep 19, 2026
19	Atgb Sistemas Integrados	Indirect evidence	Campinas, BrazilHQ checked Sep 19, 2026	201-500	145 contacts →
	Indirect evidence “Estruturada para atender em todo o território nacional, a ATGB Sistemas atua desde a etapa de projeto à implantação e manutenção de sistemas de Automação Predial, CFTV, Controle…” Source: RevenueBase Database · checked Sep 19, 2026
20	a.telecom	Indirect evidence	Brasília, BrazilHQ checked Sep 19, 2026	51-200	140 contacts →
	Indirect evidence “A A.Telecom é resultado das atualizações e mudanças no segmento de TI e telecomunicação.” Source: RevenueBase Database · checked Sep 19, 2026
21	Veolink Sistemas Integrados DE Segurança Eletronica	Indirect evidence	Belo Horizonte, BrazilHQ checked Sep 19, 2026	501-1,000	135 contacts →
	Indirect evidence “A VEOLINK é uma integradora de sistemas eletrônicos de segurança, automação e gestão de dados do Grupo Graber, que fornece desde soluções simples destinadas a proteção das pessoas…” Source: RevenueBase Database · checked Sep 19, 2026
22	Ifortix	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 19, 2026	201-500	116 contacts →
	Indirect evidence “Há 32 anos, com sede em Porto Alegre e presença estratégica em São Paulo e Rio de Janeiro, oferecemos soluções completas e integradas em infraestrutura de TI e telecomunicações…” Source: RevenueBase Database · checked Sep 19, 2026
23	MML Sistemas DE Automação	Indirect evidence	Tatuapé, BrazilHQ checked Sep 19, 2026	51-200	106 contacts →
	Indirect evidence “MAIS DE 30 ANOS DE HISTÓRIA Desde seu início a MML desenvolve um trabalho sólido, atuação em todo o território nacional, mais de 200 Clientes e muitas histórias de sucesso.” Source: RevenueBase Database · checked Sep 19, 2026
24	Coelho Tecnologia	Indirect evidence	Canaã Dos Carajás, BrazilHQ checked Sep 19, 2026	n/a	99 contacts →
	Indirect evidence “Coelho Tecnologia, empresa especializada em Projetos de Telecomunicações, Infra-estrutura de Cabeamento, Fibra-Ótica, Radio Enlace, Redes, Switch, Roteadores, Asterisk, MikroTik…” Source: RevenueBase Database · checked Sep 19, 2026
25	Sercompe	Indirect evidence	Joinville, BrazilHQ checked Sep 19, 2026	51-200	91 contacts →
	Indirect evidence “A Sercompe é uma empresa de tecnologia que se dedica a projetar, comercializar, implementar e manter infraestruturas de TI confiáveis e escaláveis, focada em potencializar os…” 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: communication system integrators. 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 communication system integrators.
Partial evidence: Its own public description names part of communication system integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name communication system integrators. 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 830 communication system integrators based in Brazil

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,247 reachable decision-makers.

Free signup · no credit card

View the full list →

Communication system integrators based in Brazil at a glance

As of Sep 19, 2026

15.2%Verified-email coverage

25.7Average contacts per company

11-50Median size (employees)

26.7%Largest-city concentration · Sao Paulo

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

371

11-50

333

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for Brazil, so it is reported there. Company counts and contact totals on this page are exact for Brazil, over 830 companies.

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 communication system integrators, 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.
What qualifies: Companies headquartered in Brazil whose own description of what they do matches “communication system integrators”. 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 communication system integrators), 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 communication system integrators, and records with no verified work email. Companies headquartered outside Brazil are excluded even when they keep an office there.
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, 3,247 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.

Communication system integrators by metro

Communication system integrators in Sao Paulo222
Communication system integrators in Rio De Janeiro59
Communication system integrators in Belo Horizonte43
Communication system integrators in Campinas34
Communication system integrators in Curitiba31

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 communication system integrators, 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 communication system integrators are there based in Brazil?

RevenueBase identified 830 communication system integrators headquartered in Brazil 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?

Procisa DO Brasil, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most communication system integrators?

Sao Paulo leads with 222 headquartered companies, followed by Rio De Janeiro (59) and Belo Horizonte (43).

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 3,247 verified decision-maker contacts tracked across these 830 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.

Ready to reach these companies? Verified emails and direct dials for all 830 communication system integrators based in Brazil. Start with a free account, no credit card.

Download this list →

Related lists

Communication system integrators by geography

Browse the directory

Browse: Companies home · All Brazil lists · All Communication system integrators lists · New lists

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.