Company lists · Data refreshed September 2026

Top 25 Wavelength division multiplexing companies worldwide

RevenueBase identified 616 company matches for wavelength division multiplexing companies worldwide as of September 2026 and tracks 25,883 professional contacts across them, including 8,780 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers company matches for wavelength division multiplexing companies worldwide, 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 22, 2026. Country and city lists for wavelength division multiplexing companies follow the table.

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 22, 2026 How this list was built
616Companies
25,883Contacts tracked
8,780Verified emails
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The 25 largest wavelength division multiplexing companies worldwide

Ranked by team size
Top 25 of 616 company matches for wavelength division multiplexing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHanover, MD, United StatesHQ recorded Sep 22, 20265,001-10,0009,426 contacts →

Exact match

“Ciena (NYSE:CIEN) is the global leader in high-speed connectivity.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchSan Jose, CA, United StatesHQ recorded Sep 22, 202610001+2,257 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchSan Jose, CA, United StatesHQ recorded Sep 22, 20261,001-5,0001,959 contacts →

Exact match

“Infinera is now part of Nokia.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchCampinas, BrazilHQ recorded Sep 22, 2026501-1,000614 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 22, 2026 · View company records in RevenueBase
5Exact matchSugar Land, TX, United StatesHQ recorded Sep 22, 20261,001-5,000416 contacts →

Exact match

“Applied Optoelectronics, Inc.| NASDAQ: AAOI AOI is a leading designer and manufacturer of fiber optic networking products.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchLannion, FranceHQ recorded Sep 22, 2026501-1,000379 contacts →

Exact match

“Ekinops is a European leader in optical networking and secured connectivity solutions for service providers, enterprises and public organizations around the world.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchWest Hills, CA, United StatesHQ recorded Sep 22, 2026501-1,000285 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchChatsworth, CA, United StatesHQ recorded Sep 22, 2026201-500259 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchMinneapolis, MN, United StatesHQ recorded Sep 22, 2026201-500258 contacts →

Exact match

“Clearfield, Inc.(NASDAQ: CLFD) designs, manufactures, and distributes fiber optic management, protection, and delivery solutions that play a critical role in enabling broadband…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchMaynard, MA, United StatesHQ recorded Sep 22, 202610001+225 contacts →

Exact match

“Acacia is an optical networking strategy and technology company that empowers cloud and service providers to meet the fast-growing consumer demands for data.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchFremont, CA, United StatesHQ recorded Sep 22, 20261,001-5,000196 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchSunnyvale, CA, United StatesHQ recorded Sep 22, 2026201-500148 contacts →

Exact match

“Cortina Systems, Inc.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchChinaHQ recorded Sep 22, 20261,001-5,000130 contacts →

Exact match

“Hisense Broadband Multimedia Technologies Co, Ltd.(HBMT) is a global leader in the development and manufacturing of broadband optical and multimedia terminals.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchTemecula, CA, United StatesHQ recorded Sep 22, 202651-200122 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchOslo, NorwayHQ recorded Sep 22, 202651-200121 contacts →

Exact match

“Smartoptics provides innovative optical networking solutions and devices for the new era of open networking.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchCologno Monzese, ItalyHQ recorded Sep 22, 2026201-500102 contacts →

Exact match

“SM-OPTICS is company driving innovation in fiber based communication, counting on a proven management and R&D team with 20+ years of experience in the optical domain as well as…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchDhaka, BangladeshHQ recorded Sep 22, 2026201-500100 contacts →

Exact match

“Optical Fiber Connectivity TDM & IP/MPLS Solution Provider.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchSuzhou, ChinaHQ recorded Sep 22, 20261,001-5,00095 contacts →

Exact match

“InnoLight was founded in 2008, is now a world leader in development of silicon photonics and provide a wide range of high-speed optical solutions for optical communication…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchEindhoven, NetherlandsHQ recorded Sep 22, 202651-20093 contacts →

Exact match

“Where Light Meets Digital - EFFECT Photonics is a highly vertically integrated, independent photonic optical systems company addressing the need for high-performance, affordable…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchQuebec & Switzerland, CanadaHQ recorded Sep 22, 202651-20092 contacts →

Exact match

“At indie (Nasdaq: INDI), we empower our customers with best-in-class semiconductor, photonics, software, and system-level technologies designed to drive their success.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchOttawa, ON, CanadaHQ recorded Sep 22, 202651-20084 contacts →

Exact match

“The world-class team of scientist and engineers at Ranovus is comprised of professionals with a unique combination of decades of expertise in product development of…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchRochester, NY, United StatesHQ recorded Sep 22, 2026201-50078 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchFortaleza, BrazilHQ recorded Sep 22, 202651-20076 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 22, 2026 · View company records in RevenueBase
24Exact matchValencia, SpainHQ recorded Sep 22, 202651-20070 contacts →

Exact match

“iPRONICS has pioneered the field of software-defined photonics.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchSaudi ArabiaHQ recorded Sep 22, 202651-20069 contacts →

Exact match

“Established in the year 2005 in the city of Riyadh, Amwaj Telecommunication Manufacturing Company (ISO 9001:2008) has the distinction of being first of its kind in the Middle East…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 616 wavelength division multiplexing companies worldwide

See the full list, filter by size, metro and specialty, and access 8,780 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wavelength division multiplexing companies worldwide at a glance

As of Sep 22, 2026
33.9%Verified-email coverage
42.0Average contacts per company
51-200Median size (employees)
14.6%Largest-city concentration · Shenzhen
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
109
11-50
145
51-200
209
201-500
76
501-1,000
32
1,001-5,000
37
5,001-10,000
3
10001+
3

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for wavelength division multiplexing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “wavelength division multiplexing companies” 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. 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 8,780 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 22, 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.

Wavelength division multiplexing companies by location

1 lists · largest first

Every Wavelength division multiplexing 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 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 “wavelength division multiplexing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wavelength division multiplexing companies are there worldwide?

RevenueBase identified 616 company matches for wavelength division multiplexing companies worldwide 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?

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

Which country has the most wavelength division multiplexing companies?

The United States leads with 96 companies. Every wavelength division multiplexing companies list by country and city is linked on this page.

Which city has the most wavelength division multiplexing companies?

Shenzhen leads with 90 company records, followed by Wuhan (13) and Fremont (8).

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 8,780 professional contacts with verified work emails tracked across these 616 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 22, 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.