Company lists · Data refreshed September 2026

Top 14 Telecom vendor management consultants based in Sao Paulo, Brazil

RevenueBase identified 91 telecom vendor management consultants headquartered in Sao Paulo, Brazil as of September 2026 and tracks 836 professional contacts across them, including 137 with verified work emails and 13 with mobile numbers. Sao Paulo is the largest hub.

This list covers telecom vendor management consultants headquartered in Sao Paulo, 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 13, 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 13, 2026 86% judged on-target in blind review
91Companies
836Contacts tracked
137Verified emails
13Mobile numbers
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The 14 largest telecom vendor management consultants based in Sao Paulo, Brazil

Ranked by team size
Top 14 of 91 telecom vendor management consultants based in Sao Paulo, Brazil, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to telecom vendor management consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSao Paulo, BrazilHQ checked Sep 13, 202651-200107 contacts →

Indirect evidence

“A ZivaSec,faz parte do Grupo NTSec e já conta com quinze anos de atuação no mercado, tem o objetivo de atuar com excelência em consultoria, implementação e gerenciamento de…”

Source: RevenueBase Database · checked Sep 13, 2026
2Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202651-20073 contacts →

Partial evidence

“Somos uma empresa especializada em soluções de Telecom e Tecnologia para pequenas, médias e grandes empresas.”

Source: RevenueBase Database · checked Sep 13, 2026
3Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202651-20050 contacts →

Partial evidence

“A Quality Telecom é uma empresa voltada à área de integração para soluções ligadas a telecomunicações e tecnologia da Informação que desenvolve projetos para pequenas, médias e…”

Source: RevenueBase Database · checked Sep 13, 2026
4Strong evidenceSao Paulo, BrazilHQ checked Sep 13, 202611-5026 contacts →

Strong evidence

“The company ATIKS TEM, acts in Telecommunication Management, Consulting and Telecommunications Services Outsourcing, using the TEM concepts (Telecom Expense Management), offering…”

Source: RevenueBase Database · checked Sep 13, 2026
5Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202611-5020 contacts →

Partial evidence

“Mais de 30 anos de experiência e resultados A DIGITEL nasceu em 1990, respondendo á necessidade do mercado de telecomunicações de contar com uma empresa especialista em projetos…”

Source: RevenueBase Database · checked Sep 13, 2026
6Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202611-5020 contacts →

Partial evidence

“Há 28 anos ajudando empresas a melhorar suas comunicações Criamos a ARC Telecom em 1995 inicialmente com o foco de ofertar serviços e soluções customizadas em telecomunicações…”

Source: RevenueBase Database · checked Sep 13, 2026
7Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202651-20015 contacts →

Partial evidence

“Founded in 2007, Zieltec Have expertise to complete solutions in telecommunications infrastructure and information technology, integrating products and services, also working on…”

Source: RevenueBase Database · checked Sep 13, 2026
8Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202611-5014 contacts →

Partial evidence

“Somos especializados em estratégias de gerenciamento em Telecom para contratos B2B.”

Source: RevenueBase Database · checked Sep 13, 2026
9Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202611-504 contacts →

Partial evidence

“Consultoria especializada em TI e Telecom

Source: RevenueBase Database · checked Sep 13, 2026
10Indirect evidenceSao Paulo, BrazilHQ checked Sep 13, 20261-104 contacts →

Indirect evidence

“Especialistas em gestão com foco em redução das despesas em Telefonia Fixa, Móvel, Voip e Internet Empresarial Comercialização de planos e serviços de Telefonia Fixa, Móvel, Voip…”

Source: RevenueBase Database · checked Sep 13, 2026
11Indirect evidenceSao Paulo, BrazilHQ checked Sep 13, 2026201-5003 contacts →

Indirect evidence

“Embratel Primesys S.A.”

Source: RevenueBase Database · checked Sep 13, 2026
12Indirect evidenceSao Paulo, BrazilHQ checked Sep 13, 202651-2002 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 13, 2026
13Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 202611-501 contacts →

Partial evidence

“Somos a Yellow A, uma empresa focada em descomplicar a gestão de contratos de TI e telecom, auditoria de contas e redução de custos.”

Source: RevenueBase Database · checked Sep 13, 2026
14Partial evidenceSao Paulo, BrazilHQ checked Sep 13, 20261-101 contacts →

Partial evidence

“Empresa com sólida experiência em Gerenciamento Comercial & Marketing nos segmentos de Telecomunicações (TV Paga e Operadoras de Telecom, Carriers Nacionais e Internacionais)…”

Source: RevenueBase Database · checked Sep 13, 2026

Showing 14 of 91 telecom vendor management consultants based in Sao Paulo, Brazil

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Telecom vendor management consultants based in Sao Paulo, Brazil at a glance

As of Sep 13, 2026
16.4%Verified-email coverage
1.6%Mobile-number coverage
9.2Average contacts per company
11-50Median size (employees)
100.0%Largest-city concentration · Sao Paulo
Sep 13, 2026Page data refreshed

Companies by employee count

1-10
38
11-50
36
51-200
14
201-500
1
5,001-10,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

Company record updated

Median 81.0d

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 telecom vendor management consultants, 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 Sao Paulo, Brazil whose own description of what they do matches “telecom vendor management consultants”. 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 telecom vendor management consultants), 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 telecom vendor management consultants, and records with no verified work email. Companies headquartered outside Sao Paulo 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, 137 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 13, 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.

Telecom vendor management consultants by metro in Brazil

  • Telecom vendor management consultants in Sao Paulo91

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 telecom vendor management consultants, 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 telecom vendor management consultants are there based in Sao Paulo, Brazil?

RevenueBase identified 91 telecom vendor management consultants headquartered in Sao Paulo, 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?

Zivasec, headquartered in Sao Paulo, tops this list with the largest team on record.

Which city has the most telecom vendor management consultants?

Sao Paulo leads with 91 headquartered companies, followed by Rio De Janeiro (22) and Campinas (18).

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 137 verified decision-maker contacts tracked across these 91 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 13, 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.