Company lists · Data refreshed September 2026

Top 25 Optical communication companies worldwide

Name: Optical communication companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,994 companies tracked

RevenueBase identified 1,994 optical communication companies worldwide as of September 2026 and tracks 59,495 professional contacts across them, including 17,009 with verified work emails and 0 with mobile numbers. China is the largest market and Shenzhen the largest hub.

This list covers optical communication companies 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 19, 2026. Country and city lists for optical communication companies 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 19, 2026 86% judged on-target in blind review

1,994Companies

59,495Contacts tracked

17,009Verified emails

0Mobile numbers

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The 25 largest optical communication companies worldwide

Ranked by team size

Top 25 of 1,994 optical communication companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to optical communication companies: 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	CIENA	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 19, 2026	5,001-10,000	9,426 contacts →
	Indirect evidence “Ciena (NYSE:CIEN) is the global leader in high-speed connectivity.” Source: RevenueBase Database · checked Sep 19, 2026
2	Fiberhome	Indirect evidence	Wuhan, ChinaHQ checked Sep 19, 2026	10001+	4,327 contacts →
	Indirect evidence “FiberHome is an internationally renowned provider of ICT network products and solutions, Our mission is to maximize the potential of digital connections and benefit the society.” Source: RevenueBase Database · checked Sep 19, 2026
3	Tejas Networks	Partial evidence	Bangalore, IndiaHQ checked Sep 19, 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 19, 2026
4	Hfcl Limited	Indirect evidence	New Delhi, IndiaHQ checked Sep 19, 2026	1,001-5,000	3,233 contacts →
	Indirect evidence “HFCL is a leading technology company specialising in creating digital networks for telcos, enterprises and governments.” Source: RevenueBase Database · checked Sep 19, 2026
5	AFL	Indirect evidence	Duncan, SC, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,813 contacts →
	Indirect evidence “Founded in 1984, AFL is a global manufacturer providing end-to-end solutions to the energy, broadband, data center, AI and industrial markets.” Source: RevenueBase Database · checked Sep 19, 2026
6	Lumentum	Partial evidence	San Jose, CA, United StatesHQ checked Sep 19, 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 19, 2026
7	Infinera	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,959 contacts →
	Indirect evidence “Infinera is now part of Nokia.” Source: RevenueBase Database · checked Sep 19, 2026
8	Huber Suhner	Partial evidence	Herisau, SwitzerlandHQ checked Sep 19, 2026	1,001-5,000	1,933 contacts →
	Partial evidence “HUBER+SUHNER designs and builds components and system solutions for electrical and optical connectivity.” Source: RevenueBase Database · checked Sep 19, 2026
9	fs.com	Partial evidence	New Castle, DE, United StatesHQ checked Sep 19, 2026	1,001-5,000	893 contacts →
	Partial evidence “FS is a professional provider of communication and high-speed network system solutions to networking, data center and telecom customers, with the vision to redefine service and…” Source: RevenueBase Database · checked Sep 19, 2026
10	OFS	Strong evidence	Norcross, GA, United StatesHQ checked Sep 19, 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 19, 2026
11	Padtec S A	Partial evidence	Campinas, BrazilHQ checked Sep 19, 2026	501-1,000	614 contacts →
	Partial 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 19, 2026
12	AOI	Partial evidence	Sugar Land, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	416 contacts →
	Partial evidence “Applied Optoelectronics, Inc.\| NASDAQ: AAOI AOI is a leading designer and manufacturer of fiber optic networking products.” Source: RevenueBase Database · checked Sep 19, 2026
13	YOFC	Partial evidence	Wuhan, ChinaHQ checked Sep 19, 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 19, 2026
14	Luna Innovations	Partial evidence	Roanoke, VA, United StatesHQ checked Sep 19, 2026	201-500	333 contacts →
	Partial evidence “Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Source: RevenueBase Database · checked Sep 19, 2026
15	Source Photonics	Partial evidence	West Hills, CA, United StatesHQ checked Sep 19, 2026	501-1,000	285 contacts →
	Partial 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 19, 2026
16	Optical Cable Corporation	Partial evidence	Roanoke, VA, United StatesHQ checked Sep 19, 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 19, 2026
17	Clearfield	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 19, 2026	201-500	258 contacts →
	Partial 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 19, 2026
18	Acacia	Partial evidence	Maynard, MA, United StatesHQ checked Sep 19, 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 19, 2026
19	Infolink Telecom	Indirect evidence	Eusébio, BrazilHQ checked Sep 19, 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 19, 2026
20	Fibrain	Partial evidence	Głogów Małopolski, PolandHQ checked Sep 19, 2026	501-1,000	215 contacts →
	Partial evidence “FIBRAIN Group is the Polish leader and the leading manufacturer in the field of ICT systems, fiber optic telecommunications and FTTH solutions.” Source: RevenueBase Database · checked Sep 19, 2026
21	AVO Photonics	Indirect evidence	Fort Washington, PA, United StatesHQ checked Sep 19, 2026	501-1,000	198 contacts →
	Indirect evidence “Avo Photonics is a contract engineering services company that specializes in the custom design, development and manufacturing of opto-electronic components.” Source: RevenueBase Database · checked Sep 19, 2026
22	Oplink Communications, LLC	Indirect evidence	Fremont, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	196 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
23	OZ Optics LTD	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 19, 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 19, 2026
24	Serfim T.I.C	Partial evidence	Vénissieux Cedex, FranceHQ checked Sep 19, 2026	201-500	183 contacts →
	Partial evidence “SERFIM Technologies de l’Information et de la Communication (SERFIM TIC) est spécialisée dans 5 domaines d'activités : Réseaux Fibre Optique Très Haut Débit, Territoires Connectés…” Source: RevenueBase Database · checked Sep 19, 2026
25	Swissoptic	Partial evidence	Heerbrugg, SwitzerlandHQ checked Sep 19, 2026	501-1,000	177 contacts →
	Partial evidence “SwissOptic AG is your partner of choice for the entire process chain of OEM optics, from concept to volume production.” Source: RevenueBase Database · checked Sep 19, 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 communication 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 optical communication companies.
Partial evidence: Its own public description names part of optical communication companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name optical communication 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 1,994 optical communication companies worldwide

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Optical communication companies worldwide at a glance

As of Sep 19, 2026

28.6%Verified-email coverage

29.8Average contacts per company

11-50Median size (employees)

10.2%Largest-city concentration · Shenzhen

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

513

11-50

609

51-200

536

201-500

177

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 communication 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.
Coverage: 15 countries, largest first: China, the United States, Brazil, Germany, France, India, the United Kingdom, Spain, Italy, Canada and 5 more. Country and city lists for optical communication companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “optical communication 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 optical communication 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 optical communication companies, 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, 17,009 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 19, 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 communication companies by location

15 lists · largest first

Every Optical communication companies 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 communication 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 optical communication companies are there worldwide?

RevenueBase identified 1,994 optical communication companies 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?

CIENA, headquartered in Hanover, tops this list with the largest team on record.

Which country has the most optical communication companies?

China leads with 644 companies, followed by the United States (426) and Brazil (134). Every optical communication companies list by country and city is linked on this page.

Which city has the most optical communication companies?

Shenzhen leads with 203 headquartered companies, followed by Wuhan (37) and Ningbo (20).

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 17,009 verified decision-maker contacts tracked across these 1,994 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 19, 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.