Company lists · Data refreshed September 2026

Top 25 Optical transmission equipment manufacturers worldwide

Name: Optical transmission equipment manufacturers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 1,188 companies tracked

RevenueBase identified 1,188 optical transmission equipment manufacturers worldwide as of September 2026 and tracks 24,309 professional contacts across them, including 5,946 with verified work emails and 0 with mobile numbers. China is the largest market and Shenzhen the largest hub.

This list covers optical transmission equipment manufacturers worldwide, 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. Country and city lists for optical transmission equipment manufacturers follow the table.

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

1,188Companies

24,309Contacts tracked

5,946Verified emails

0Mobile numbers

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The 25 largest optical transmission equipment manufacturers worldwide

Ranked by team size

Top 25 of 1,188 optical transmission equipment manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to optical transmission equipment 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	Tejas Networks	Partial evidence	Bangalore, IndiaHQ checked Sep 17, 2026	1,001-5,000	3,282 contacts →
	Partial evidence “Tejas Networks is a global broadband, optical and wireless networking company, with a focus on technology, innovation and R&D.” Source: RevenueBase Database · checked Sep 17, 2026
2	Lumentum	Partial evidence	San Jose, CA, United StatesHQ checked Sep 17, 2026	10001+	2,257 contacts →
	Partial evidence “Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation…” Source: RevenueBase Database · checked Sep 17, 2026
3	OFS	Strong evidence	Norcross, GA, United StatesHQ checked Sep 17, 2026	1,001-5,000	816 contacts →
	Strong evidence “OFS is a world-leading innovator, manufacturer and provider of infrastructure solutions for communication networks and specialty fiber optic products.” Source: RevenueBase Database · checked Sep 17, 2026
4	Padtec S A	Strong evidence	Campinas, BrazilHQ checked Sep 17, 2026	501-1,000	614 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
5	AOI	Strong evidence	Sugar Land, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	416 contacts →
	Strong evidence “Applied Optoelectronics, Inc.\| NASDAQ: AAOI AOI is a leading designer and manufacturer of fiber optic networking products.” Source: RevenueBase Database · checked Sep 17, 2026
6	YOFC	Partial evidence	Wuhan, ChinaHQ checked Sep 17, 2026	1,001-5,000	395 contacts →
	Partial evidence “Yangtze Optical Fibre and Cable Joint Stock Limited Company (also known as 'YOFC') is established in Wuhan, Hubei Province in May 1988.” Source: RevenueBase Database · checked Sep 17, 2026
7	Ekinops	Partial evidence	Lannion, FranceHQ checked Sep 17, 2026	501-1,000	379 contacts →
	Partial evidence “Ekinops is a European leader in optical networking and secured connectivity solutions for service providers, enterprises and public organizations around the world.” Source: RevenueBase Database · checked Sep 17, 2026
8	Source Photonics	Indirect evidence	West Hills, CA, United StatesHQ checked Sep 17, 2026	501-1,000	285 contacts →
	Indirect evidence “Source Photonics is a leading global provider of innovative and reliable technology that enables communications and data connectivity, in next-generation mobile and fixed-line…” Source: RevenueBase Database · checked Sep 17, 2026
9	Optical Cable Corporation	Partial evidence	Roanoke, VA, United StatesHQ checked Sep 17, 2026	201-500	261 contacts →
	Partial evidence “When we first built our reputation as pioneers in fiber optic cable industry, OCC made a commitment to quality, performance, and service.” Source: RevenueBase Database · checked Sep 17, 2026
10	MRV Communications	Partial evidence	Chatsworth, CA, United StatesHQ checked Sep 17, 2026	201-500	259 contacts →
	Partial evidence “MRV is now part of ADVA Optical Networking MRV Communications enables service providers, data center operators and enterprises to make their networks smarter, faster and easier to…” Source: RevenueBase Database · checked Sep 17, 2026
11	Clearfield	Strong evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	201-500	258 contacts →
	Strong evidence “Clearfield, Inc.(NASDAQ: CLFD) designs, manufactures, and distributes fiber optic management, protection, and delivery solutions that play a critical role in enabling broadband…” Source: RevenueBase Database · checked Sep 17, 2026
12	Acacia	Partial evidence	Maynard, MA, United StatesHQ checked Sep 17, 2026	10001+	225 contacts →
	Partial evidence “Acacia is an optical networking strategy and technology company that empowers cloud and service providers to meet the fast-growing consumer demands for data.” Source: RevenueBase Database · checked Sep 17, 2026
13	Oplink Communications, LLC	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 17, 2026	1,001-5,000	196 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	OZ Optics LTD	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 17, 2026	201-500	191 contacts →
	Partial evidence “OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Source: RevenueBase Database · checked Sep 17, 2026
15	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
16	Multilink INC	Indirect evidence	Elyria, OH, United StatesHQ checked Sep 17, 2026	201-500	154 contacts →
	Indirect evidence “Multilink is one of the world's leading engineers and product developers of telecommunications network components, servicing the traditional CATV MSO's (Cable Television Multiple…” Source: RevenueBase Database · checked Sep 17, 2026
17	Fiber Instrument Sales, INC	Strong evidence	Oriskany, NY, United StatesHQ checked Sep 17, 2026	201-500	148 contacts →
	Strong evidence “Fiber Instrument Sales, Inc.(FIS) was founded in 1985 to fulfill the growing need in the communications industry for fiber optic cables and connectivity equipment.” Source: RevenueBase Database · checked Sep 17, 2026
18	Cortina Systems	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 17, 2026	201-500	148 contacts →
	Indirect evidence “Cortina Systems, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	Huber Suhner Polatis	Partial evidence	Cambridge, United KingdomHQ checked Sep 17, 2026	51-200	148 contacts →
	Partial evidence “HUBER+SUHNER Polatis delivers the world's lowest loss optical circuit switching solutions for dynamic remote fiber-layer provisioning, protection, monitoring, reconfiguration and…” Source: RevenueBase Database · checked Sep 17, 2026
20	Lisconn	Partial evidence	Taipei, TaiwanHQ checked Sep 17, 2026	5,001-10,000	148 contacts →
	Partial evidence “We manufacture!” Source: RevenueBase Database · checked Sep 17, 2026
21	Hisense Broadband Multimedia Technologies, LTD	Partial evidence	ChinaHQ checked Sep 17, 2026	1,001-5,000	130 contacts →
	Partial evidence “Hisense Broadband Multimedia Technologies Co, Ltd.(HBMT) is a global leader in the development and manufacturing of broadband optical and multimedia terminals.” Source: RevenueBase Database · checked Sep 17, 2026
22	Laser Components	Partial evidence	Olching, GermanyHQ checked Sep 17, 2026	201-500	127 contacts →
	Partial evidence “Since its establishment in 1982, LASER COMPONENTS has always defined itself as a solution provider for optical and optoelectronic technologies.” Source: RevenueBase Database · checked Sep 17, 2026
23	Skorpios Technologies, INC	Indirect evidence	Temecula, CA, United StatesHQ checked Sep 17, 2026	51-200	122 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
24	Fonex Data Systems INC	Partial evidence	Saint Laurent, QC, French GuianaHQ checked Sep 17, 2026	51-200	101 contacts →
	Partial evidence “FONEX is a leading carrier-class telecom equipment supplier focused on delivering optimized network infrastructure design solutions.” Source: RevenueBase Database · checked Sep 17, 2026
25	Amphenol Fiber Systems International	Strong evidence	Allen, TX, United StatesHQ checked Sep 17, 2026	201-500	100 contacts →
	Strong evidence “Amphenol Fiber Systems International (AFSI) is a full service fiber optic company specializing in the fabrication and manufacture of fiber optic connectivity products and systems.” 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 transmission equipment 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 transmission equipment manufacturers.
Partial evidence: Its own public description names part of optical transmission equipment manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name optical transmission equipment 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 1,188 optical transmission equipment manufacturers worldwide

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Optical transmission equipment manufacturers worldwide at a glance

As of Sep 17, 2026

24.5%Verified-email coverage

20.5Average contacts per company

51-200Median size (employees)

19.5%Largest-city concentration · Shenzhen

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

226

11-50

271

51-200

410

201-500

162

501-1,000

1,001-5,000

5,001-10,000

10001+

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 transmission equipment 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.
Coverage: 9 countries, largest first: China, the United States, India, the United Kingdom, Taiwan, Brazil, Germany, France, Canada. Country and city lists for optical transmission equipment manufacturers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “optical transmission equipment 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 transmission equipment 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 transmission equipment manufacturers, and records with no verified work email.
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, 5,946 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.

Optical transmission equipment manufacturers by location

9 lists · largest first

Every Optical transmission equipment manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 transmission equipment 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 transmission equipment manufacturers are there worldwide?

RevenueBase identified 1,188 optical transmission equipment manufacturers worldwide 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?

Tejas Networks, headquartered in Bangalore, tops this list with the largest team on record.

Which country has the most optical transmission equipment manufacturers?

China leads with 660 companies, followed by the United States (245) and India (66). Every optical transmission equipment manufacturers list by country and city is linked on this page.

Which city has the most optical transmission equipment manufacturers?

Shenzhen leads with 232 headquartered companies, followed by Wuhan (33) and Ningbo (15).

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 5,946 verified decision-maker contacts tracked across these 1,188 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.