Company lists · Data refreshed November 2026

Top 25 Fiber optic test equipment suppliers worldwide

RevenueBase identified 1,150 company matches for fiber optic test equipment suppliers worldwide as of November 2026 and tracks 16,420 professional contacts across them, including 2,209 with verified work emails. China is the largest market and Shenzhen the largest hub.

This list covers company matches for fiber optic test equipment suppliers 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 November 6, 2026. Country and city lists for fiber optic test equipment suppliers 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 Nov 6, 2026 How this list was built
1,150Companies
16,420Contacts tracked
2,209Verified emails
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The 25 largest fiber optic test equipment suppliers worldwide

Ranked by team size
Top 25 of 1,150 company matches for fiber optic test equipment suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchNew York, NY, United StatesHQ recorded Nov 6, 2026n/a4,904 contacts →

Exact match

“GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSugar Land, TX, United StatesHQ recorded Nov 6, 20261,001-5,000514 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWuhan, ChinaHQ recorded Nov 6, 20261,001-5,000449 contacts →

Exact match

“Yangtze Optical Fibre and Cable Joint Stock Limited Company (also known as 'YOFC') is established in Wuhan, Hubei Province in May 1988.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHudson, United StatesHQ recorded Nov 6, 20261,001-5,000309 contacts →

Exact match

“SENKO Advanced Components design and manufacture precise, user-friendly, and application-focused fiber optic connectors that allow network operators to achieve the performance and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 2026201-500289 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRoanoke, NC, United StatesHQ recorded Nov 6, 2026201-500275 contacts →

Exact match

“When we first built our reputation as pioneers in fiber optic cable industry, OCC made a commitment to quality, performance, and service.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchGłogów Małopolski, PolandHQ recorded Nov 6, 2026501-1,000223 contacts →

Exact match

“FIBRAIN Group is the Polish leader and the leading manufacturer in the field of ICT systems, fiber optic telecommunications and FTTH solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchOttawa, CanadaHQ recorded Nov 6, 2026201-500204 contacts →

Exact match

“OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchCaçapava, BrazilHQ recorded Nov 6, 2026201-500167 contacts →

Exact match

“Completando 30 anos em 2025, a Cabletech alcançou a liderança nacional na fabricação de cabos coaxiais e ópticos, sempre focada em inovação e em manter um padrão de qualidade…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchOriskany, NY, United StatesHQ recorded Nov 6, 2026201-500153 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchNew Delhi, IndiaHQ recorded Nov 6, 2026501-1,000149 contacts →

Exact match

“West Coast Optilinks (A division of West Coast Paper Mills Ltd.), belongs to a USD 700 Million fast growing Industrial business house “S.K.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchAllen, TX, United StatesHQ recorded Nov 6, 2026201-500113 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchWilliamsburg, VA, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“WEINERT Fiber Optics is an established leader with decades of unique fiber optic experience.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchFremont, CA, United StatesHQ recorded Nov 6, 2026n/a96 contacts →

Exact match

“Sunrise Telecom® is a registered trademark of VeEX Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchNew Bedford, MA, United StatesHQ recorded Nov 6, 202611-5089 contacts →

Exact match

“Fiber Optic Center, Inc,(FOC), is an international distributor of fiber optic components, equipment and supplies and the industry connection to the most innovative optical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVista, CA, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Tempo® Communications is a trusted name in the utility, communications, and irrigation industries, delivering a full suite of innovative, industry-leading test and measurement…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchHigh Wycombe, United KingdomHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“With decades of experience, the close-knit team at TREND Networks (Formerly IDEAL Networks) understands the challenges that data cable installers, network technicians and systems…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPinhais, BrazilHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Componentes para instalação de redes ópticas - Fibra Óptica e Acessórios.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchUnited StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Founded in 1979, Photon Kinetics is the leading supplier of measurement solutions for the optical fiber, cable and component manufacturing industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchIncheon, South KoreaHQ recorded Nov 6, 2026201-50054 contacts →

Exact match

“INNO INSTRUMENT is one of the reputed global suppliers of various equipment to telecommunications industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFrankfort, NY, United StatesHQ recorded Nov 6, 202651-20052 contacts →

Exact match

“Fiberdyne Labs, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIrun, SpainHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Lightmax SL empresa fundada en 2007 especializada en la fabricación y suministro de productos para redes pasivas de fibra óptica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKempton Park, South AfricaHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“AMHT manufactures optical fibre cables and our product range includes underground, aerial and FTTH (Fibre To The Home) optical fibre cables.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNairobi, KenyaHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Our technological heritage includes the first to market offerings for many of the fiber optic products that meet today’s industry standards.As broadband networks are being…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchOceanside, CA, United StatesHQ recorded Nov 6, 202651-20043 contacts →

Exact match

“Sumix designs, develops and manufactures high-end test equipment for fiber optic industry, interferometers and inspection probes, industrial USB 3.0 cameras, USB 2.0 cameras and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,150 fiber optic test equipment suppliers worldwide

See the full list, filter by size, metro and specialty, and access 2,209 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fiber optic test equipment suppliers worldwide at a glance

As of Nov 6, 2026
13.5%Verified-email coverage
14.3Average contacts per company
11-50Median size (employees)
11.3%Largest-city concentration · Shenzhen
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
367
11-50
323
51-200
278
201-500
110
501-1,000
34
1,001-5,000
15
5,001-10,000
1
10001+
2

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 fiber optic test equipment suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “fiber optic test equipment suppliers” 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 2,209 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 November 6, 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.

Fiber optic test equipment suppliers by location

6 lists · largest first

Every Fiber optic test equipment suppliers 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 “fiber optic test equipment suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fiber optic test equipment suppliers are there worldwide?

RevenueBase identified 1,150 company matches for fiber optic test equipment suppliers worldwide as of November 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?

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

Which country has the most fiber optic test equipment suppliers?

China leads with 339 companies, followed by the United States (170) and India (60). Every fiber optic test equipment suppliers list by country and city is linked on this page.

Which city has the most fiber optic test equipment suppliers?

Shenzhen leads with 130 company records, followed by Ningbo (16) and Nanjing (11).

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 2,209 professional contacts with verified work emails tracked across these 1,150 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 November 6, 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.