Company lists · Data refreshed September 2026

Top 25 Optical communication systems companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,433 companies tracked

RevenueBase identified 1,433 optical communication systems companies worldwide as of September 2026 and tracks 51,056 professional contacts across them, including 15,321 with verified work emails and 0 with mobile numbers. China is the largest market and Shenzhen the largest hub.

This list covers optical communication systems 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 systems 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

1,433Companies

51,056Contacts tracked

15,321Verified emails

0Mobile numbers

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The 25 largest optical communication systems companies worldwide

Ranked by team size

Top 25 of 1,433 optical communication systems 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 systems 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	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
5	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
6	MACOM	Indirect evidence	Lowell, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,651 contacts →
	Indirect evidence “MACOM designs and manufactures RF, microwave, millimeter wave solutions and optoelectronics for Data Center, Telecommunication, Industrial and Aerospace and Defense applications.” Source: RevenueBase Database · checked Sep 19, 2026
7	Thorlabs	Indirect evidence	Newton, NJ, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,348 contacts →
	Indirect evidence “Thorlabs is a leading designer and manufacturer of photonics equipment for research, manufacturing, and biomedical applications.” Source: RevenueBase Database · checked Sep 19, 2026
8	fs.com	Strong evidence	New Castle, DE, United StatesHQ checked Sep 19, 2026	1,001-5,000	893 contacts →
	Strong 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
9	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
10	Padtec S A	Strong evidence	Campinas, BrazilHQ checked Sep 19, 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 19, 2026
11	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
12	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
13	Ekinops	Partial evidence	Lannion, FranceHQ checked Sep 19, 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 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	Mynaric	Partial evidence	Munich, GermanyHQ checked Sep 19, 2026	201-500	326 contacts →
	Partial evidence “Mynaric develops and produces laser communications terminals for air, space and mobile applications.” Source: RevenueBase Database · checked Sep 19, 2026
16	California Eastern Laboratories CEL	Strong evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	51-200	310 contacts →
	Strong evidence “CEL provides world class wireless and optical products, with specialized support, to OEMs needing wireless communication.” Source: RevenueBase Database · checked Sep 19, 2026
17	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
18	Senko Advanced Components, INC	Partial evidence	Hudson, MA, United StatesHQ checked Sep 19, 2026	1,001-5,000	276 contacts →
	Partial evidence “SENKO Advanced Components design and manufacture precise, user-friendly, and application-focused fiber optic connectors that allow network operators to achieve the performance and…” Source: RevenueBase Database · checked Sep 19, 2026
19	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
20	Optimax Systems, INC	Partial evidence	Ontario, NY, United StatesHQ checked Sep 19, 2026	201-500	261 contacts →
	Partial evidence “America's largest optics manufacturer, Optimax is on the cutting edge of future applications in space, high-energy lasers, and semiconductor.” Source: RevenueBase Database · checked Sep 19, 2026
21	MRV Communications	Strong evidence	Chatsworth, CA, United StatesHQ checked Sep 19, 2026	201-500	259 contacts →
	Strong 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 19, 2026
22	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
23	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
24	Sunny Optical Technology Group Co. LTD	Partial evidence	Yuyao, ChinaHQ checked Sep 19, 2026	10001+	223 contacts →
	Partial evidence “Sunny Optical Technology (Group) Company Limited (the “Company” or “Sunny Optical Technology”, together with its subsidiaries, the “Group”)(Stock Code: 2382.HK) is a global…” Source: RevenueBase Database · checked Sep 19, 2026
25	Ayar Labs	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 19, 2026	51-200	200 contacts →
	Indirect evidence “Ayar Labs is transforming AI infrastructure by accelerating data movement.” 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 systems 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 systems companies.
Partial evidence: Its own public description names part of optical communication systems 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 systems 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 1,433 optical communication systems companies worldwide

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Optical communication systems companies worldwide at a glance

As of Sep 19, 2026

30.0%Verified-email coverage

35.6Average contacts per company

51-200Median size (employees)

16.1%Largest-city concentration · Shenzhen

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

289

11-50

365

51-200

455

201-500

167

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 systems 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: 9 countries, largest first: China, the United States, Germany, India, the United Kingdom, Taiwan, France, Brazil, Canada. Country and city lists for optical communication systems companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “optical communication systems 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 systems 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 systems 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, 15,321 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 systems companies by location

9 lists · largest first

Every Optical communication systems 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 systems 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 systems companies are there worldwide?

RevenueBase identified 1,433 optical communication systems 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 systems companies?

China leads with 705 companies, followed by the United States (348) and Germany (74). Every optical communication systems companies list by country and city is linked on this page.

Which city has the most optical communication systems companies?

Shenzhen leads with 231 headquartered companies, followed by Wuhan (36) and Ningbo (18).

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 15,321 verified decision-maker contacts tracked across these 1,433 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.