Company lists · Data refreshed November 2026

Top 25 Fiber optic network testing companies worldwide

RevenueBase identified 2,139 company matches for fiber optic network testing companies worldwide as of November 2026 and tracks 22,244 professional contacts across them, including 4,553 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers company matches for fiber optic network testing 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 network testing 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
2,139Companies
22,244Contacts tracked
4,553Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest fiber optic network testing companies worldwide

Ranked by team size
Top 25 of 2,139 company matches for fiber optic network testing 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 matchJakarta, IndonesiaHQ recorded Nov 6, 2026501-1,000898 contacts →

Exact match

“Indonesia's robust IT market has paved the way for increasing demand in IT infrastructure, products and services.”

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 matchWest Hills, United StatesHQ recorded Nov 6, 2026501-1,000338 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchPlano, VA, United StatesHQ recorded Nov 6, 2026201-500329 contacts →

Exact match

“FiberLight builds and operates mission-critical high-bandwidth networks to ignite our clients' digital transformation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGothenburg, SwedenHQ recorded Nov 6, 20261,001-5,000304 contacts →

Exact match

“Connectivity creates opportunity.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact 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
7Exact 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
8Exact matchMiami Lakes, FL, United StatesHQ recorded Nov 6, 2026501-1,000242 contacts →

Exact match

“Draftech International is a full-service telecom engineering and outside plant (OSP) solutions provider, delivering end-to-end fiber optic design, FTTH engineering, and broadband…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchEusébio, BrazilHQ recorded Nov 6, 202651-200232 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact 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
11Exact matchArgentinaHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Servicio a Telefonica Argentina”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchTampa, FL, United StatesHQ recorded Nov 6, 202651-200193 contacts →

Exact match

“Founded in 1984, our headquarters is located in Tampa, Florida.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchJakarta Timur, IndonesiaHQ recorded Nov 6, 2026201-500187 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchCoalisland, United KingdomHQ recorded Nov 6, 2026501-1,000178 contacts →

Exact match

“Viberoptix delivers frontline services to fibre networks providers across the UK and Ireland.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact 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
16Exact matchWysogotowo, PolandHQ recorded Nov 6, 2026501-1,000165 contacts →

Exact match

“Fiberhost jest liderem w budowie i zarządzaniu multi-światłowodem, czyli udostępnianą lokalnym oraz ogólnopolskim dostawcom Internetu i TV siecią światłowodową typu FTTH (ang.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchMalle, MaldivesHQ recorded Nov 6, 2026n/a161 contacts →

Exact match

“APK Telecom Network Solutions (ATN), in 2016 overgenomen door APK Group focust zich op glasvezel, datacenters, camera's & alarmen.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact 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
19Exact matchUnited StatesHQ recorded Nov 6, 20265,001-10,000144 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchColumbus, OH, United StatesHQ recorded Nov 6, 202651-200142 contacts →

Exact match

“A TRUE FIBER OPTIC NETWORK PARTNER For over 125 years, we’ve been dedicated to technology and innovation, evident in our 100 percent fiber optic network.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchIndiaHQ recorded Nov 6, 202651-200119 contacts →

Exact match

“GL Communications Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact 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
23Exact matchCologno Monzese, ItalyHQ recorded Nov 6, 2026201-500110 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 · Nov 6, 2026 · View company records in RevenueBase
24Exact matchManassas, VA, United StatesHQ recorded Nov 6, 202651-200107 contacts →

Exact match

“FNS performs all aspects of aerial and underground construction, OSP maintenance, fiber splicing and testing, business fiber installation, fiber relocates, damaged fiber…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchNiepołomice, PolandHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“FCA S.A.”

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

Showing 25 of 2,139 fiber optic network testing companies worldwide

See the full list, filter by size, metro and specialty, and access 4,553 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Fiber optic network testing companies worldwide at a glance

As of Nov 6, 2026
20.5%Verified-email coverage
10.4Average contacts per company
11-50Median size (employees)
3.6%Largest-city concentration · Shenzhen
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
844
11-50
758
51-200
352
201-500
107
501-1,000
24
1,001-5,000
19
5,001-10,000
2
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 network testing companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “fiber optic network testing 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 4,553 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 network testing companies by location

12 lists · largest first

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

How many fiber optic network testing companies are there worldwide?

RevenueBase identified 2,139 company matches for fiber optic network testing 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?

PT Mega Akses Persada Fiberstar tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most fiber optic network testing companies?

The United States leads with 366 companies, followed by the United Kingdom (148) and France (135). Every fiber optic network testing companies list by country and city is linked on this page.

Which city has the most fiber optic network testing companies?

Shenzhen leads with 76 company records, followed by Sao Paulo (13) and Paris (12).

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 4,553 professional contacts with verified work emails tracked across these 2,139 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.

Ready to reach these companies? Verified emails and direct dials for all 2,139 fiber optic network testing companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

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.