Company lists · Data refreshed November 2026

Top 25 Fiber optic testing and certification companies worldwide

RevenueBase identified 1,004 company matches for fiber optic testing and certification companies worldwide as of November 2026 and tracks 6,224 professional contacts across them, including 1,115 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers company matches for fiber optic testing and certification 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 November 6, 2026. Country and city lists for fiber optic testing and certification 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 Nov 6, 2026 How this list was built
1,004Companies
6,224Contacts tracked
1,115Verified emails
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The 25 largest fiber optic testing and certification companies worldwide

Ranked by team size
Top 25 of 1,004 company matches for fiber optic testing and certification companies 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 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
2Exact 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
3Exact 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
4Exact matchFremont, GA, United StatesHQ recorded Nov 6, 2026201-50073 contacts →

Exact match

“VeEX a communications Test and Measurement company, develops innovative Test Solutions for next generation telecommunication networks and services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact 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
6Exact matchTaboão Da Serra, BrazilHQ recorded Nov 6, 2026201-50062 contacts →

Exact match

“Integradores por natureza, oferecemos soluções de implantação, manutenção e fiscalização de redes de fibra óptica.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact 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
8Exact matchIstanbul, TürkiyeHQ recorded Nov 6, 2026201-50052 contacts →

Exact match

“ETK Kablo, whichs main principle is quality, is founded in 1979 in Istanbul, Türkiye to manufacture telephone cables.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchDoral, FL, United StatesHQ recorded Nov 6, 202651-20044 contacts →

Exact match

“Est.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchTualatin, OR, United StatesHQ recorded Nov 6, 202651-20044 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact 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
12Exact matchCampinas, BrazilHQ recorded Nov 6, 202611-5038 contacts →

Exact match

“FiberWork is a company specialized in Optical Fiber Communication Technology.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchPombal, PortugalHQ recorded Nov 6, 202651-20037 contacts →

Exact match

“A Optilink é uma PME tecnológica portuguesa que exerce a sua atividade na produção fabril de componentes para redes de telecomunicações óticas, com uma forte capacidade de…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchVoiron, FranceHQ recorded Nov 6, 202611-5037 contacts →

Exact match

“IFOTEC, c’est l’alliance entre la maîtrise des fibres optiques et des technologies électroniques de communication.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match경기도 안산시, South KoreaHQ recorded Nov 6, 2026201-50036 contacts →

Exact match

“Taihan Fiberoptics co, Ltd.[KOSDAQ: 010170], which is specialized in manufacturing optical fiber, fiber optic cables and accessories.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchRio De Janeiro, BrazilHQ recorded Nov 6, 202651-20036 contacts →

Exact match

“Empresa especializada em construção e Manutenção de redes opticas, seguindo as certificações internacionais ISO 45001 e 9001.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchAlcobendas, SpainHQ recorded Nov 6, 202651-20035 contacts →

Exact match

“OPTRAL is a Spanish leader company, founded in 1988, engaged in fibre optic cable design, manufacture and worldwide known companies in the Telecom, Oil & Gas, Industry and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMidrand, South AfricaHQ recorded Nov 6, 202611-5033 contacts →

Exact match

“VH Fibre Optics is a specialist passive fibre optic solutions provider.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLodz, PolandHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“OPTOMER company has been operating in the industry since 1992.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLaguna Niguel, OH, United StatesHQ recorded Nov 6, 202651-20032 contacts →

Exact match

“QPC Fiber Optic is an optical technology company based in Southern California, serving customers worldwide since We design and manufacture fiber optic connectors, fiber optic…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchWest Jordan, UT, United StatesHQ recorded Nov 6, 202651-20032 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLindenhurst, NY, United StatesHQ recorded Nov 6, 202651-20030 contacts →

Exact match

“Transformative, resilient solutions for secure, scalable, and future-proof networks.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchChavanod, FranceHQ recorded Nov 6, 202651-20029 contacts →

Exact match

“Data-Pixel is an international leader in technology for image-processing based test and measurement equipment, since 2001.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchMidrand, South AfricaHQ recorded Nov 6, 202611-5028 contacts →

Exact match

“Our client base is as diverse as the products and services we offer, including 24/7 maintenance cover with a guaranteed time to site for business-critical installations and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchGmund, AustriaHQ recorded Nov 6, 202651-20027 contacts →

Exact match

“The NBG Group specializes in customized FIMT (fiber in metal tubes) products and has over 25 years of experience in industrial fiber optic technology.”

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

Showing 25 of 1,004 fiber optic testing and certification companies worldwide

See the full list, filter by size, metro and specialty, and access 1,115 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fiber optic testing and certification companies worldwide at a glance

As of Nov 6, 2026
17.9%Verified-email coverage
6.2Average contacts per company
11-50Median size (employees)
3.0%Largest-city concentration · Shenzhen
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
472
11-50
313
51-200
148
201-500
43
501-1,000
9
1,001-5,000
4
10001+
1

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 testing and certification companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “fiber optic testing and certification 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 1,115 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 testing and certification companies by location

3 lists · largest first

Every Fiber optic testing and certification 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 “fiber optic testing and certification companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fiber optic testing and certification companies are there worldwide?

RevenueBase identified 1,004 company matches for fiber optic testing and certification companies 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?

Fiber Instrument Sales, 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 testing and certification companies?

The United States leads with 183 companies, followed by the United Kingdom (80) and Germany (45). Every fiber optic testing and certification companies list by country and city is linked on this page.

Which city has the most fiber optic testing and certification companies?

Shenzhen leads with 30 company records, followed by Sao Paulo (7) and Madrid (6).

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 1,115 professional contacts with verified work emails tracked across these 1,004 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.