Company lists · Data refreshed September 2026
Top 25 Fiber optic cable manufacturing companies based in Brazil
RevenueBase identified 126 fiber optic cable manufacturing companies headquartered in Brazil as of September 2026 and tracks 2,526 professional contacts across them, including 240 with verified work emails. Sao Paulo is the largest hub.
This list covers fiber optic cable manufacturing companies 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 15, 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.
The 25 largest fiber optic cable manufacturing companies based in Brazil
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 357 contacts → | ||||
Indirect evidence “Empresa paranaense, fabricante de cabos de fibra óptica e acessórios para redes ópticas.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 80 contacts → | ||||
Indirect evidence “Na Fibersul, conectamos tecnologia, inovação e performance para transformar projetos em soluções de alto padrão.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 76 contacts → | ||||
Indirect 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 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 57 contacts → | ||||
Indirect evidence “Componentes para instalação de redes ópticas - Fibra Óptica e Acessórios.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 56 contacts → | ||||
Indirect evidence “Integradores por natureza, oferecemos soluções de implantação, manutenção e fiscalização de redes de fibra óptica.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 52 contacts → | ||||
Partial evidence “Diante das diferentes demandas que surgem no mercado de telecomunicação, nasceu a Next Cable - Indústria de cabos de rede e ferragens para instalação de provedores!” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 35 contacts → | ||||
Indirect evidence “Empresa especializada em Projetos, Manutenção e Construção de redes de fibra óptica, com corpo técnico treinado em fabricantes de Cabos Ópticos.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 34 contacts → | ||||
Partial evidence “FiberWork is a company specialized in Optical Fiber Communication Technology.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 30 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 23 contacts → | ||||
Partial 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 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 20 contacts → | ||||
Indirect evidence “A Unicaserv é uma Distribuidora de equipamentos de Telecomunicações, especializada em Redes de Fibras Ópticas.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 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 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 contacts → | ||||
Indirect evidence “Empresa de injeção plástica” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
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: fiber optic cable manufacturing 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 fiber optic cable manufacturing companies.
- Partial evidence
- Its own public description names part of fiber optic cable manufacturing companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name fiber optic cable manufacturing 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 126 fiber optic cable manufacturing companies based in Brazil
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Fiber optic cable manufacturing companies based in Brazil at a glance
As of Sep 15, 2026Companies by employee count
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 126 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 fiber optic cable manufacturing 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.
- What qualifies
- Companies headquartered in Brazil whose own description of what they do matches “fiber optic cable manufacturing 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 fiber optic cable manufacturing 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 fiber optic cable manufacturing companies, 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 15, 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 fiber optic cable manufacturing 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 fiber optic cable manufacturing companies are there based in Brazil?
RevenueBase identified 126 fiber optic cable manufacturing companies 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 fiber optic cable manufacturing companies?
Sao Paulo leads with 19 headquartered companies, followed by Fortaleza (5) and Santos (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 126 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 15, 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.
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