Company lists · Data refreshed November 2026
Top 25 Optical network testing companies worldwide
RevenueBase identified 1,571 company matches for optical network testing companies worldwide as of November 2026 and tracks 51,924 professional contacts across them, including 15,544 with verified work emails. China is the largest market and Shenzhen the largest hub.
This list covers company matches for optical 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 optical 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.
The 25 largest optical network testing companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 12,611 contacts → | ||||
Exact match “Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 7,474 contacts → | ||||
Exact match “In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 4,904 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 | |||||
| 4 | 4,595 contacts → | ||||
Exact match “VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 1,483 contacts → | ||||
Exact match “EXFO develops smarter test, measurement and monitoring solutions for the global communications industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 718 contacts → | ||||
Exact match “At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 685 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 629 contacts → | ||||
Exact match “Lumentum has acquired Oclaro.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 555 contacts → | ||||
Exact match “Founded in 1984, Chroma ATE Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 514 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 | |||||
| 11 | 433 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 360 contacts → | ||||
Exact match “Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 338 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 | |||||
| 14 | 263 contacts → | ||||
Exact match “Founded in 1995 and headquartered in Hsinchu, Taiwan, MPI Corporation is a global technology leader in test and measurement solutions spanning the full integrated-circuit…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 238 contacts → | ||||
Exact match “Glow Networks, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 235 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 216 contacts → | ||||
Exact match “T&M Solution Provider, No 1 in Telecom Services, Rental and Sales of T&M Equipments - FLEXIRENTAL programme.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 204 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 | |||||
| 19 | 200 contacts → | ||||
Exact match “A GGNet Telecom atua no mercado de telecomunicações há mais de 10 anos.Iniciamos nossas atividades em Caçador-SC como provedor de internet via rádio.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 195 contacts → | ||||
Exact match “Servicio a Telefonica Argentina” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 191 contacts → | ||||
Exact match “Sürdürülebilirlik Ve Kalite Hizmet kalitemizin sürdürülebilirliğinin sağlanması en önemli sorumluluklarımızın başında gelmektedir.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 175 contacts → | ||||
Exact match “HUBER+SUHNER Polatis delivers the world's lowest loss optical circuit switching solutions for dynamic remote fiber-layer provisioning, protection, monitoring, reconfiguration and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 161 contacts → | ||||
Exact match “Cascade Microtech, Inc, was acquired by FormFactor in 2016.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 149 contacts → | ||||
Exact match “Smartoptics provides innovative optical networking solutions and devices for the new era of open networking.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 127 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “optical network testing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 1,571 optical network testing companies worldwide
See the full list, filter by size, metro and specialty, and access 15,544 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Optical network testing companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 optical network testing companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “optical 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 15,544 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.
Optical network testing companies by location
8 lists · largest firstEvery Optical network testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical network testing companies based in China323
- Optical network testing companies based in the United States227
- Optical network testing companies based in France76
- Optical network testing companies based in Brazil69
- Optical network testing companies based in India63
- Optical network testing companies based in the United Kingdom60
- Optical network testing companies based in Germany47
- Optical network testing companies based in Canada28
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 “optical network testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many optical network testing companies are there worldwide?
RevenueBase identified 1,571 company matches for optical 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?
Keysight Technologies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most optical network testing companies?
China leads with 323 companies, followed by the United States (227) and France (76). Every optical network testing companies list by country and city is linked on this page.
Which city has the most optical network testing companies?
Shenzhen leads with 106 company records, followed by Sao Paulo (12) and Wuhan (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 15,544 professional contacts with verified work emails tracked across these 1,571 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 1,571 optical network testing companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 optical network testing companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,571 matching company records for optical network testing companies worldwide, with 51,924 tracked contacts and 15,544 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 optical network testing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Keysight Technologieskeysight.comHQ: Santa Rosa, United StatesReported employees: 10001+ | Santa Rosa, United States | 10001+ | Exact match | 12,611 contacts → |
“Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  NI National Instrumentsni.comHQ: Austin, TX, United StatesReported employees: 5,001-10,000 | Austin, TX, United States | 5,001-10,000 | Exact match | 7,474 contacts → |
“In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Gaotek INCgaotek.comHQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 4,904 contacts → |
“GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Viavi Solutionsviavisolutions.comHQ: Chandler, AZ, United StatesReported employees: 1,001-5,000 | Chandler, AZ, United States | 1,001-5,000 | Exact match | 4,595 contacts → |
“VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  EXFOexfo.comHQ: Québec, TX, CanadaReported employees: 1,001-5,000 | Québec, TX, Canada | 1,001-5,000 | Exact match | 1,483 contacts → |
“EXFO develops smarter test, measurement and monitoring solutions for the global communications industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Transcattranscat.comHQ: Rochester, NY, United StatesReported employees: 501-1,000 | Rochester, NY, United States | 501-1,000 | Exact match | 718 contacts → |
“At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Padtec S Apadtec.com.brHQ: Campinas, BrazilReported employees: 501-1,000 | Campinas, Brazil | 501-1,000 | Exact match | 685 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Oclarolumentum.comHQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 629 contacts → |
“Lumentum has acquired Oclaro.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Chroma ATE INCchromaate.comHQ: Taoyuan City, TaiwanReported employees: 1,001-5,000 | Taoyuan City, Taiwan | 1,001-5,000 | Exact match | 555 contacts → |
“Founded in 1984, Chroma ATE Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  AOIao-inc.comHQ: Sugar Land, TX, United StatesReported employees: 1,001-5,000 | Sugar Land, TX, United States | 1,001-5,000 | Exact match | 514 contacts → |
“Applied Optoelectronics, Inc.| NASDAQ: AAOI AOI is a leading designer and manufacturer of fiber optic networking products.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Ekinopsekinops.comHQ: Lannion, FranceReported employees: 501-1,000 | Lannion, France | 501-1,000 | Exact match | 433 contacts → |
“Ekinops is a European leader in optical networking and secured connectivity solutions for service providers, enterprises and public organizations around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Luna Innovationslunainc.comHQ: Blacksburg, VA, United StatesReported employees: 201-500 | Blacksburg, VA, United States | 201-500 | Exact match | 360 contacts → |
“Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Source Photonicssourcephotonics.comHQ: West Hills, United StatesReported employees: 501-1,000 | West Hills, United States | 501-1,000 | Exact match | 338 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  MPI Corporationmpi-corporation.comHQ: Zhubei, TaiwanReported employees: 1,001-5,000 | Zhubei, Taiwan | 1,001-5,000 | Exact match | 263 contacts → |
“Founded in 1995 and headquartered in Hsinchu, Taiwan, MPI Corporation is a global technology leader in test and measurement solutions spanning the full integrated-circuit…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Glow Networksglownetworks.comHQ: Dallas, United StatesReported employees: 51-200 | Dallas, United States | 51-200 | Exact match | 238 contacts → |
“Glow Networks, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Acaciaacacia-inc.comHQ: Maynard, MA, United StatesReported employees: 10001+ | Maynard, MA, United States | 10001+ | Exact match | 235 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Toshniwal Enterprises Controls Pvt. LTDtoshniwalcontrols.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 216 contacts → |
“T&M Solution Provider, No 1 in Telecom Services, Rental and Sales of T&M Equipments - FLEXIRENTAL programme.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  OZ Optics LTDozoptics.comHQ: Ottawa, CanadaReported employees: 201-500 | Ottawa, Canada | 201-500 | Exact match | 204 contacts → |
“OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Ggnet Telecomgegnet.com.brHQ: Caçador, BrazilReported employees: 51-200 | Caçador, Brazil | 51-200 | Exact match | 200 contacts → |
“A GGNet Telecom atua no mercado de telecomunicações há mais de 10 anos.Iniciamos nossas atividades em Caçador-SC como provedor de internet via rádio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  TEL Telecomunicacionesteltelecom.com.brHQ: ArgentinaReported employees: 201-500 | Argentina | 201-500 | Exact match | 195 contacts → |
“Servicio a Telefonica Argentina” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Nanolab Laboratuvarlar Grubunano-lab.com.trHQ: İstanbul, TürkiyeReported employees: 201-500 | İstanbul, Türkiye | 201-500 | Exact match | 191 contacts → |
“Sürdürülebilirlik Ve Kalite Hizmet kalitemizin sürdürülebilirliğinin sağlanması en önemli sorumluluklarımızın başında gelmektedir.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Huber Suhner Polatispolatis.comHQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 175 contacts → |
“HUBER+SUHNER Polatis delivers the world's lowest loss optical circuit switching solutions for dynamic remote fiber-layer provisioning, protection, monitoring, reconfiguration and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Cascade Microtechformfactor.comHQ: Beaverton, OR, United StatesReported employees: 1,001-5,000 | Beaverton, OR, United States | 1,001-5,000 | Exact match | 161 contacts → |
“Cascade Microtech, Inc, was acquired by FormFactor in 2016.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Smartopticssmartoptics.comHQ: Oslo, NorwayReported employees: 51-200 | Oslo, Norway | 51-200 | Exact match | 149 contacts → |
“Smartoptics provides innovative optical networking solutions and devices for the new era of open networking.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Skorpios Technologies, INCskorpiosinc.comHQ: Temecula, CA, United StatesReported employees: 51-200 | Temecula, CA, United States | 51-200 | Exact match | 127 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 1,571 company matches
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Optical network testing companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,548 records in the displayed employee bands.
23 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,571 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Optical network testing companies by location
8 lists · largest firstEvery Optical network testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical network testing companies based in China323
- Optical network testing companies based in the United States227
- Optical network testing companies based in France76
- Optical network testing companies based in Brazil69
- Optical network testing companies based in India63
- Optical network testing companies based in the United Kingdom60
- Optical network testing companies based in Germany47
- Optical network testing companies based in Canada28
Questions about this company list
What does Exact match mean for optical network testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many optical network testing companies did RevenueBase find worldwide?
The saved snapshot records 1,571 matching company records, 51,924 tracked contacts and 15,544 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 optical network testing companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/optical-network-testing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 optical network testing companies worldwide
RevenueBase records 1,571 matching company records for optical network testing companies worldwide, with 51,924 tracked contacts and 15,544 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 optical network testing companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Keysight Technologieskeysight.com HQ: Santa Rosa, United StatesReported employees: 10001+ | Santa Rosa, United States | 10001+ | Exact match | 12,611 contacts → |
“Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | NI National Instrumentsni.com HQ: Austin, TX, United StatesReported employees: 5,001-10,000 | Austin, TX, United States | 5,001-10,000 | Exact match | 7,474 contacts → |
“In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Gaotek INCgaotek.com HQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 4,904 contacts → |
“GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Viavi Solutionsviavisolutions.com HQ: Chandler, AZ, United StatesReported employees: 1,001-5,000 | Chandler, AZ, United States | 1,001-5,000 | Exact match | 4,595 contacts → |
“VIAVI Solutions (NASDAQ: VIAV) is a global leader in both network and service enablement and optical security performance products and solutions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | EXFOexfo.com HQ: Québec, TX, CanadaReported employees: 1,001-5,000 | Québec, TX, Canada | 1,001-5,000 | Exact match | 1,483 contacts → |
“EXFO develops smarter test, measurement and monitoring solutions for the global communications industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Transcattranscat.com HQ: Rochester, NY, United StatesReported employees: 501-1,000 | Rochester, NY, United States | 501-1,000 | Exact match | 718 contacts → |
“At Transcat, we are the global leader in test and measurement equipment and calibration services for highly technical industries, including life sciences, power generation…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Padtec S Apadtec.com.br HQ: Campinas, BrazilReported employees: 501-1,000 | Campinas, Brazil | 501-1,000 | Exact match | 685 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Oclarolumentum.com HQ: San Jose, CA, United StatesReported employees: 1,001-5,000 | San Jose, CA, United States | 1,001-5,000 | Exact match | 629 contacts → |
“Lumentum has acquired Oclaro.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Chroma ATE INCchromaate.com HQ: Taoyuan City, TaiwanReported employees: 1,001-5,000 | Taoyuan City, Taiwan | 1,001-5,000 | Exact match | 555 contacts → |
“Founded in 1984, Chroma ATE Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | AOIao-inc.com HQ: Sugar Land, TX, United StatesReported employees: 1,001-5,000 | Sugar Land, TX, United States | 1,001-5,000 | Exact match | 514 contacts → |
“Applied Optoelectronics, Inc.| NASDAQ: AAOI AOI is a leading designer and manufacturer of fiber optic networking products.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Ekinopsekinops.com HQ: Lannion, FranceReported employees: 501-1,000 | Lannion, France | 501-1,000 | Exact match | 433 contacts → |
“Ekinops is a European leader in optical networking and secured connectivity solutions for service providers, enterprises and public organizations around the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Luna Innovationslunainc.com HQ: Blacksburg, VA, United StatesReported employees: 201-500 | Blacksburg, VA, United States | 201-500 | Exact match | 360 contacts → |
“Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Source Photonicssourcephotonics.com HQ: West Hills, United StatesReported employees: 501-1,000 | West Hills, United States | 501-1,000 | Exact match | 338 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | MPI Corporationmpi-corporation.com HQ: Zhubei, TaiwanReported employees: 1,001-5,000 | Zhubei, Taiwan | 1,001-5,000 | Exact match | 263 contacts → |
“Founded in 1995 and headquartered in Hsinchu, Taiwan, MPI Corporation is a global technology leader in test and measurement solutions spanning the full integrated-circuit…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Glow Networksglownetworks.com HQ: Dallas, United StatesReported employees: 51-200 | Dallas, United States | 51-200 | Exact match | 238 contacts → |
“Glow Networks, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Acaciaacacia-inc.com HQ: Maynard, MA, United StatesReported employees: 10001+ | Maynard, MA, United States | 10001+ | Exact match | 235 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Toshniwal Enterprises Controls Pvt. LTDtoshniwalcontrols.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 216 contacts → |
“T&M Solution Provider, No 1 in Telecom Services, Rental and Sales of T&M Equipments - FLEXIRENTAL programme.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | OZ Optics LTDozoptics.com HQ: Ottawa, CanadaReported employees: 201-500 | Ottawa, Canada | 201-500 | Exact match | 204 contacts → |
“OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Ggnet Telecomgegnet.com.br HQ: Caçador, BrazilReported employees: 51-200 | Caçador, Brazil | 51-200 | Exact match | 200 contacts → |
“A GGNet Telecom atua no mercado de telecomunicações há mais de 10 anos.Iniciamos nossas atividades em Caçador-SC como provedor de internet via rádio.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | TEL Telecomunicacionesteltelecom.com.br HQ: ArgentinaReported employees: 201-500 | Argentina | 201-500 | Exact match | 195 contacts → |
“Servicio a Telefonica Argentina” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Nanolab Laboratuvarlar Grubunano-lab.com.tr HQ: İstanbul, TürkiyeReported employees: 201-500 | İstanbul, Türkiye | 201-500 | Exact match | 191 contacts → |
“Sürdürülebilirlik Ve Kalite Hizmet kalitemizin sürdürülebilirliğinin sağlanması en önemli sorumluluklarımızın başında gelmektedir.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Huber Suhner Polatispolatis.com HQ: Cambridge, United KingdomReported employees: 51-200 | Cambridge, United Kingdom | 51-200 | Exact match | 175 contacts → |
“HUBER+SUHNER Polatis delivers the world's lowest loss optical circuit switching solutions for dynamic remote fiber-layer provisioning, protection, monitoring, reconfiguration and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Cascade Microtechformfactor.com HQ: Beaverton, OR, United StatesReported employees: 1,001-5,000 | Beaverton, OR, United States | 1,001-5,000 | Exact match | 161 contacts → |
“Cascade Microtech, Inc, was acquired by FormFactor in 2016.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Smartopticssmartoptics.com HQ: Oslo, NorwayReported employees: 51-200 | Oslo, Norway | 51-200 | Exact match | 149 contacts → |
“Smartoptics provides innovative optical networking solutions and devices for the new era of open networking.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Skorpios Technologies, INCskorpiosinc.com HQ: Temecula, CA, United StatesReported employees: 51-200 | Temecula, CA, United States | 51-200 | Exact match | 127 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 1,571 company matches
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Optical network testing companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,548 records in the displayed employee bands.
23 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,571 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Optical network testing companies by location
8 lists · largest firstEvery Optical network testing companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical network testing companies based in China323
- Optical network testing companies based in the United States227
- Optical network testing companies based in France76
- Optical network testing companies based in Brazil69
- Optical network testing companies based in India63
- Optical network testing companies based in the United Kingdom60
- Optical network testing companies based in Germany47
- Optical network testing companies based in Canada28
Questions about this company list
What does Exact match mean for optical network testing companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many optical network testing companies did RevenueBase find worldwide?
The saved snapshot records 1,571 matching company records, 51,924 tracked contacts and 15,544 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 optical network testing companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/optical-network-testing-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗