Company lists · Data refreshed September 2026

Top 14 Optical transmission equipment manufacturers based in Brazil

Name: Optical transmission equipment 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 38 companies tracked

RevenueBase identified 38 company matches for optical transmission equipment manufacturers associated with Brazil as of September 2026 and tracks 1,513 professional contacts across them, including 379 with verified work emails. Sao Paulo is the largest hub.

This list covers company matches for optical transmission equipment manufacturers associated with Brazil, 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 September 17, 2026.

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 Sep 17, 2026 How this list was built

38Companies

1,513Contacts tracked

379Verified emails

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The 14 largest optical transmission equipment manufacturers based in Brazil

Ranked by team size

Top 14 of 38 company matches for optical transmission equipment manufacturers based in Brazil, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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	Padtec S A	Exact match	Campinas, BrazilHQ recorded Sep 17, 2026	501-1,000	614 contacts →
	Exact match “A reference for high-capacity optical transport technology and systems, Padtec offers an extensive product portfolio that meets the end-to-end demands - in transmission, optical…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Yofc Poliron	Exact match	Diadema, BrazilHQ recorded Sep 17, 2026	201-500	167 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Asga S A	Exact match	Paulinia, BrazilHQ recorded Sep 17, 2026	201-500	91 contacts →
	Exact match “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.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Fonnet Networks	Exact match	Fortaleza, BrazilHQ recorded Sep 17, 2026	51-200	76 contacts →
	Exact match “A FonNet Networks é uma extensão da Precision Optical Technologies, Inc no Brasil, uma das maiores fabricantes de tecnologia de redes ópticas do mundo.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Quadrac Soluções	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 17, 2026	51-200	30 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Belari Argi Telecomunicações Ltda	Exact match	Rio De Janeiro, BrazilHQ recorded Sep 17, 2026	11-50	29 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Fibramérica	Exact match	Balneário Camboriú, BrazilHQ recorded Sep 17, 2026	201-500	24 contacts →
	Exact match “Fibramérica: Innovation and Global Connectivity in Telecommunications At Fibramérica, we lead the market in the manufacturing and distribution of high-quality fiber optic…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	SEI Brasil Sumitomo Electric Group Company	Exact match	Sorocaba, BrazilHQ recorded Sep 17, 2026	51-200	23 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Global Technology	Exact match	Sao Paulo, BrazilHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Optlaser Brasil	Exact match	Salvador, BrazilHQ recorded Sep 17, 2026	1-10	13 contacts →
	Exact match “Concebida para atender à crescente demanda em tecnologia óptica no Brasil, a OPTLASER BRASIL oferta uma série de soluções voltadas para o mercado nacional.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Rosenberger Brasil	Exact match	Cacapava, BrazilHQ recorded Sep 17, 2026	201-500	12 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Betel Indústria	Exact match	Santa Rita Do Sapucaí, BrazilHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Empresa de injeção plástica” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Lightspeed	Exact match	Fortaleza, BrazilHQ recorded Sep 17, 2026	11-50	4 contacts →
	Exact match “Genuinamente cearense, a Light Speed nasce em meados de 2022 idealizada e estrategicamente desenvolvida em todas as esferas do negócio para ser a sua melhor parceira em soluções…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Instrufiber Instrumentações E Tecnologia Ltda	Exact match	São Paulo, BrazilHQ recorded Sep 17, 2026	1-10	4 contacts →
	Exact match “A InstruFiber Instrumentações e Tecnologia, vem conquistando mais espaço no mercado a cada dia, além de reconhecimento e credibilidade em seu segmento de negócios.” Recorded in the RevenueBase company graph · Sep 17, 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 “optical transmission equipment manufacturers”. 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 14 of 38 optical transmission equipment manufacturers based in Brazil

See the full list, filter by size, metro and specialty, and access 379 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Optical transmission equipment manufacturers based in Brazil at a glance

As of Sep 17, 2026

25.0%Verified-email coverage

39.8Average contacts per company

11-50Median size (employees)

15.8%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

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 38 companies.

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.
What qualifies: Company records associated with Brazil whose business descriptions match “optical transmission equipment manufacturers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 379 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 September 17, 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.

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 “optical transmission equipment manufacturers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many optical transmission equipment manufacturers are there based in Brazil?

RevenueBase identified 38 company matches for optical transmission equipment manufacturers associated with Brazil as of September 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?

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

Which city has the most optical transmission equipment manufacturers?

Sao Paulo leads with 6 company records, followed by Cacapava (3) and Curitiba (3).

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 379 professional contacts with verified work emails tracked across these 38 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 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 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.