Company lists · Data refreshed September 2026

Top 25 Optical fiber manufacturers based in Brazil

Name: Optical fiber manufacturers based in Brazil
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 103 companies tracked

RevenueBase identified 103 optical fiber manufacturers headquartered in Brazil as of September 2026 and tracks 2,611 professional contacts across them, including 240 with verified work emails. Sao Paulo is the largest hub.

This list covers optical fiber manufacturers 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 17, 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 17, 2026 86% judged on-target in blind review

103Companies

2,611Contacts tracked

240Verified emails

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The 25 largest optical fiber manufacturers based in Brazil

Ranked by team size

Top 25 of 103 optical fiber manufacturers based in Brazil, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to optical fiber manufacturers: 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	Fibracem Teleinformática	Indirect evidence	Pinhais, BrazilHQ checked Sep 17, 2026	201-500	357 contacts →
	Indirect evidence “Empresa paranaense, fabricante de cabos de fibra óptica e acessórios para redes ópticas.” Source: RevenueBase Database · checked Sep 17, 2026
2	Infolink Telecom	Indirect evidence	Eusébio, BrazilHQ checked Sep 17, 2026	51-200	218 contacts →
	Indirect evidence “A INFOLINK TELECOM é uma empresa especializada em produtos e serviços de comunicação e tecnologia, presente no mercado desde 2004 com DNA de servir com qualidade e excelência…” Source: RevenueBase Database · checked Sep 17, 2026
3	Yofc Poliron	Indirect evidence	Diadema, BrazilHQ checked Sep 17, 2026	201-500	167 contacts →
	Indirect evidence “Established in 1988, in Wuhan, China, YOFC keeping the strategy of leadership and internationalization, started in the mining city of Pouso Alegre in Brazil a solution…” Source: RevenueBase Database · checked Sep 17, 2026
4	Cabletech	Indirect evidence	Caçapava, BrazilHQ checked Sep 17, 2026	201-500	152 contacts →
	Indirect evidence “Completando 30 anos em 2025, a Cabletech alcançou a liderança nacional na fabricação de cabos coaxiais e ópticos, sempre focada em inovação e em manter um padrão de qualidade…” Source: RevenueBase Database · checked Sep 17, 2026
5	ZTT Cable - Brasil	Indirect evidence	Marechal Deodoro, BrazilHQ checked Sep 17, 2026	51-200	106 contacts →
	Indirect evidence “Desde 2013 no país, a ZTT do Brasil é uma empresa que traz toda tecnologia de um dos principais fabricantes mundiais de Fibras Ópticas alinhada a comprovada experiência em…” Source: RevenueBase Database · checked Sep 17, 2026
6	Asga S A	Indirect evidence	Paulinia, BrazilHQ checked Sep 17, 2026	201-500	91 contacts →
	Indirect evidence “A AsGa, teve sua origem nos grupos de pesquisas que desenvolveram as tecnologias de comunicações por fibras ópticas e de transmissão digital, apoiado, desde 1973, pela Telebrás.” Source: RevenueBase Database · checked Sep 17, 2026
7	Fibersul Telecom	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	80 contacts →
	Indirect evidence “Na Fibersul, conectamos tecnologia, inovação e performance para transformar projetos em soluções de alto padrão.” Source: RevenueBase Database · checked Sep 17, 2026
8	WEC Cabos Ópticos	Indirect evidence	Sorocaba, BrazilHQ checked Sep 17, 2026	51-200	77 contacts →
	Indirect evidence “Fundada em 2015 por profissionais com mais de 15 anos de experiência na fabricação de fios e cabos, a WEC Fios e Cabos Especiais chega ao mercado como uma opção para aqueles que…” Source: RevenueBase Database · checked Sep 17, 2026
9	Fonnet Networks	Partial evidence	Fortaleza, BrazilHQ checked Sep 17, 2026	51-200	76 contacts →
	Partial evidence “A FonNet Networks é uma extensão da Precision Optical Technologies, Inc no Brasil, uma das maiores fabricantes de tecnologia de redes ópticas do mundo.” Source: RevenueBase Database · checked Sep 17, 2026
10	Amphenol Broadband Solutions	Indirect evidence	Campinas, BrazilHQ checked Sep 17, 2026	51-200	75 contacts →
	Indirect evidence “The history of AMPHENOL BROADBAND SOLUTIONS began with Monte D'Este Indústria e Comércio de Materiais Elétricos, a company founded in 1972, born of a partnership between the…” Source: RevenueBase Database · checked Sep 17, 2026
11	CPE DO Brasil	Indirect evidence	Pinhais, BrazilHQ checked Sep 17, 2026	51-200	57 contacts →
	Indirect evidence “Componentes para instalação de redes ópticas - Fibra Óptica e Acessórios.” Source: RevenueBase Database · checked Sep 17, 2026
12	Horizons Telecom	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	51-200	44 contacts →
	Indirect evidence “A Horizons Telecom é uma empresa de telecomunicações que oferece soluções e serviços em fibra ótica, sob medida, para empresas.” Source: RevenueBase Database · checked Sep 17, 2026
13	Sinos Telecomunicações Ltda	Indirect evidence	Novo Hamburgo, BrazilHQ checked Sep 17, 2026	51-200	43 contacts →
	Indirect evidence “Sinos é uma empresa gaúcha formada em maio de hoje trabalhamos com: projetos, Telecomunicações e Fibra Óptica.” Source: RevenueBase Database · checked Sep 17, 2026
14	Fiberwork Optical Communications	Strong evidence	Campinas, BrazilHQ checked Sep 17, 2026	11-50	34 contacts →
	Strong evidence “FiberWork is a company specialized in Optical Fiber Communication Technology.” Source: RevenueBase Database · checked Sep 17, 2026
15	Quadrac Soluções	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	51-200	30 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
16	Belari Argi Telecomunicações Ltda	Indirect evidence	Rio De Janeiro, BrazilHQ checked Sep 17, 2026	11-50	29 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
17	Fibramérica	Strong evidence	Balneário Camboriú, BrazilHQ checked Sep 17, 2026	201-500	24 contacts →
	Strong evidence “Fibramérica: Innovation and Global Connectivity in Telecommunications At Fibramérica, we lead the market in the manufacturing and distribution of high-quality fiber optic…” Source: RevenueBase Database · checked Sep 17, 2026
18	SEI Brasil Sumitomo Electric Group Company	Indirect evidence	Sorocaba, BrazilHQ checked Sep 17, 2026	51-200	23 contacts →
	Indirect evidence “For over 30 years present in the brazilian market of telecommunications, SUMITOMO ELETRIC INDUSTRIES now has a manufacturing unit, SEI BRASIL Soluções Ópticas, in the city of…” Source: RevenueBase Database · checked Sep 17, 2026
19	Compustar	Indirect evidence	Cianorte, BrazilHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect evidence “Fundada em 1997 inicialmente em Cianorte, inicialmente como revenda de computadores e assistência técnica, com pouco tempo passou a focar os trabalhos de infra-estrutura de redes…” Source: RevenueBase Database · checked Sep 17, 2026
20	Unicaserv	Indirect evidence	Santos, BrazilHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence “A Unicaserv é uma Distribuidora de equipamentos de Telecomunicações, especializada em Redes de Fibras Ópticas.” Source: RevenueBase Database · checked Sep 17, 2026
21	Global Technology	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence “Somos uma empresa com mais de 18 anos no mercado da telecomunicação, fornecemos componentes passiveis de comunicação por fibra óptica; Cordões ópticos, Splitter óptico, Pig tail…” Source: RevenueBase Database · checked Sep 17, 2026
22	WI Fibra Óptica	Indirect evidence	Palhoça, BrazilHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “A empresa WI Fibra Óptica iniciou suas atividades através do comprometimento de três profissionais da área de Telecomunicações oriundos da Eletrosul, Brasil Telecom e iniciativa…” Source: RevenueBase Database · checked Sep 17, 2026
23	JAP Telecom	Indirect evidence	Pedreira, BrazilHQ checked Sep 17, 2026	51-200	15 contacts →
	Indirect evidence “A J.A.P Indústria de Materiais para Telefonia Ltda iniciou suas atividades no ano de 2002, como indústria e comércio de materiais para telefonia.” Source: RevenueBase Database · checked Sep 17, 2026
24	Optlaser Brasil	Indirect evidence	Salvador, BrazilHQ checked Sep 17, 2026	1-10	13 contacts →
	Indirect evidence “Concebida para atender à crescente demanda em tecnologia óptica no Brasil, a OPTLASER BRASIL oferta uma série de soluções voltadas para o mercado nacional.” Source: RevenueBase Database · checked Sep 17, 2026
25	Rosenberger Brasil	Indirect evidence	Cacapava, BrazilHQ checked Sep 17, 2026	201-500	12 contacts →
	Indirect evidence “A Rosenberger, como uma grande especialista no desenvolvimento, vendas e fabricação de grandes soluções em telecomunicação, se apresentando também como uma grande líder mundial no…” Source: RevenueBase Database · checked Sep 17, 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: optical fiber manufacturers. 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 optical fiber manufacturers.
Partial evidence: Its own public description names part of optical fiber manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name optical fiber manufacturers. 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 103 optical fiber manufacturers based in Brazil

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Optical fiber manufacturers based in Brazil at a glance

As of Sep 17, 2026

9.2%Verified-email coverage

25.3Average contacts per company

11-50Median size (employees)

19.4%Largest-city concentration · Sao Paulo

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 103 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 optical fiber manufacturers, 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 “optical fiber manufacturers”. 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 optical fiber manufacturers), 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 optical fiber manufacturers, 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, 240 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 17, 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.

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 optical fiber manufacturers, 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 optical fiber manufacturers are there based in Brazil?

RevenueBase identified 103 optical fiber manufacturers 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?

Fibracem Teleinformática, headquartered in Pinhais, tops this list with the largest team on record.

Which city has the most optical fiber manufacturers?

Sao Paulo leads with 20 headquartered companies, followed by Fortaleza (5) and Rio De Janeiro (5).

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 240 verified decision-maker contacts tracked across these 103 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 17, 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.