Company lists · Data refreshed November 2026
Top 25 Ot system testing services worldwide
RevenueBase identified 242 company matches for ot system testing services worldwide as of November 2026 and tracks 17,519 professional contacts across them, including 3,573 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for ot system testing services 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 ot system testing services 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 ot system testing services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,376 contacts → | ||||
Exact match “Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 704 contacts → | ||||
Exact match “An internationally leading independent third-party testing, inspection, certification, training, and consulting organization, TÜV Rheinland has over 150 years of experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 280 contacts → | ||||
Exact match “TXOne Networks is the operations-first OT security partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 264 contacts → | ||||
Exact match “Miipe is an independent software testing consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 238 contacts → | ||||
Exact match “MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 226 contacts → | ||||
Exact match “SEnTRA es una empresa que brinda servicios de diseño y construcción de herramientas de certificación para el área de QA y desarrollamos Test de Esfuerzo o de Stress para…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 200 contacts → | ||||
Exact match “ALS Arabia is a diversified testing services organization with its headquarters located in Dammam, Saudi Arabia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 199 contacts → | ||||
Exact match “Kualitatem empowers businesses to deliver quality software.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 158 contacts → | ||||
Exact match “Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 156 contacts → | ||||
Exact match “Trialon is now Element!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 140 contacts → | ||||
Exact match “B/acceptance est un cabinet pur player du test fondé en 2011 et principalement orienté sur l’univers digital (e-commerce, luxe et santé)- Une approche focalisée Business…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 96 contacts → | ||||
Exact match “As a globally accredited testing service provider, we specialize in validation and consulting in the automotive industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 92 contacts → | ||||
Exact match “Applus+ is a worldwide leader in the testing, inspection, certification, and engineering sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 90 contacts → | ||||
Exact match “Somos solución integral en la ejecución de pruebas a sistemas eléctricos a cualquier nivel de tensión; Ofrecemos la ejecución de una amplia gama de pruebas eléctricas, soportados…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 72 contacts → | ||||
Exact match “ClicQA is an Independent Software Testing company dedicated to cater a wide range of software testing services to clients across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 64 contacts → | ||||
Exact match “VALTES CO,LTD aims at maximizing added value through software testing, educational consulting, and content testing.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 64 contacts → | ||||
Exact match “CAEFE es una empresa Argentina con 40 años de trayectoria, comprometida con el desarrollo de la industria mediante la realización de Ensayos No Destructivos y Estructurales.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 51 contacts → | ||||
Exact match “We help release effective, fast and secure applications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 49 contacts → | ||||
Exact match “Expertise in cybersecurity testing takes years to build but can be lost in seconds.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 46 contacts → | ||||
Exact match “InnoTech is an engineering company focused on Operational Technology (OT) spanning instrumentation, electrical and automation infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 46 contacts → | ||||
Exact match “BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 45 contacts → | ||||
Exact match “As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 41 contacts → | ||||
Exact match “BQA is een bedrijf waarbij de medewerker centraal staat.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 34 contacts → | ||||
Exact match “Verve Square Technologies is an IT services company focused on software testing organization established by Senior IT professionals who have worked across esteemed software…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 32 contacts → | ||||
Exact match “Rubric is a Mauritius-headquartered digital consulting and technology company with a growing regional presence across Africa and the Indian Ocean region.” 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 “ot system testing services”. 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 242 ot system testing services worldwide
See the full list, filter by size, metro and specialty, and access 3,573 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Ot system testing services 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 ot system testing services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “ot system testing services” 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 3,573 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.
Ot system testing services by location
2 lists · largest firstEvery Ot system testing services 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 “ot system testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many ot system testing services are there worldwide?
RevenueBase identified 242 company matches for ot system testing services 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?
Applus tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most ot system testing services?
The United States leads with 35 companies, followed by India (31). Every ot system testing services list by country and city is linked on this page.
Which city has the most ot system testing services?
London leads with 6 company records, followed by Ahmedabad (5) and Pune (5).
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 3,573 professional contacts with verified work emails tracked across these 242 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 242 ot system testing services 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 ot system testing services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 242 matching company records for ot system testing services worldwide, with 17,519 tracked contacts and 3,573 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 ot system testing services 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 |  Applusapplus.comHQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 7,376 contacts → |
“Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  TÜV Rheinland Greater Chinatuv.comHQ: Shanghai, ChinaReported employees: 5,001-10,000 | Shanghai, China | 5,001-10,000 | Exact match | 704 contacts → |
“An internationally leading independent third-party testing, inspection, certification, training, and consulting organization, TÜV Rheinland has over 150 years of experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Txone Networkstxone.comHQ: Taipei City, MexicoReported employees: 201-500 | Taipei City, Mexico | 201-500 | Exact match | 280 contacts → |
“TXOne Networks is the operations-first OT security partner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Miipe Quality Solutionsmiipe.comHQ: Markham, ON, CanadaReported employees: 201-500 | Markham, ON, Canada | 201-500 | Exact match | 264 contacts → |
“Miipe is an independent software testing consultancy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  MGA Research Corporationmgaresearch.comHQ: Akron, VA, United StatesReported employees: 201-500 | Akron, VA, United States | 201-500 | Exact match | 238 contacts → |
“MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Sentra Software House Ltdasentra.clHQ: Santiago, ChileReported employees: 201-500 | Santiago, Chile | 201-500 | Exact match | 226 contacts → |
“SEnTRA es una empresa que brinda servicios de diseño y construcción de herramientas de certificación para el área de QA y desarrollamos Test de Esfuerzo o de Stress para…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  ALS Arabiaalsarabia.comHQ: Dammam, Saudi ArabiaReported employees: 51-200 | Dammam, Saudi Arabia | 51-200 | Exact match | 200 contacts → |
“ALS Arabia is a diversified testing services organization with its headquarters located in Dammam, Saudi Arabia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Kualitatem INCkualitatem.comHQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 199 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Applus Pacificapplus.com.auHQ: Bibra Lake, AustraliaReported employees: 10001+ | Bibra Lake, Australia | 10001+ | Exact match | 158 contacts → |
“Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Trialon Corporationelement.comHQ: Burton, IN, United StatesReported employees: 501-1,000 | Burton, IN, United States | 501-1,000 | Exact match | 156 contacts → |
“Trialon is now Element!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  B Acceptanceb-acceptance.comHQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 140 contacts → |
“B/acceptance est un cabinet pur player du test fondé en 2011 et principalement orienté sur l’univers digital (e-commerce, luxe et santé)- Une approche focalisée Business…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Imat-Uveimat-uve.deHQ: Mönchengladbach, GA, GermanyReported employees: 201-500 | Mönchengladbach, GA, Germany | 201-500 | Exact match | 96 contacts → |
“As a globally accredited testing service provider, we specialize in validation and consulting in the automotive industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Applus Canadaapplus.caHQ: Edmonton, ON, CanadaReported employees: 1,001-5,000 | Edmonton, ON, Canada | 1,001-5,000 | Exact match | 92 contacts → |
“Applus+ is a worldwide leader in the testing, inspection, certification, and engineering sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Dagelecdagelec.comHQ: Bogota, ColombiaReported employees: 51-200 | Bogota, Colombia | 51-200 | Exact match | 90 contacts → |
“Somos solución integral en la ejecución de pruebas a sistemas eléctricos a cualquier nivel de tensión; Ofrecemos la ejecución de una amplia gama de pruebas eléctricas, soportados…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Clicqaclicqa.comHQ: Hyderabad, IndiaReported employees: 51-200 | Hyderabad, India | 51-200 | Exact match | 72 contacts → |
“ClicQA is an Independent Software Testing company dedicated to cater a wide range of software testing services to clients across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Valtes Co.,ltdvaltes.co.jpHQ: 千代田区, JapanReported employees: 501-1,000 | 千代田区, Japan | 501-1,000 | Exact match | 64 contacts → |
“VALTES CO,LTD aims at maximizing added value through software testing, educational consulting, and content testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Caefe SAcaefe.com.arHQ: Rosario, ArgentinaReported employees: 51-200 | Rosario, Argentina | 51-200 | Exact match | 64 contacts → |
“CAEFE es una empresa Argentina con 40 años de trayectoria, comprometida con el desarrollo de la industria mediante la realización de Ensayos No Destructivos y Estructurales.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Qalifiedqalified.comHQ: Montevideo, UruguayReported employees: 51-200 | Montevideo, Uruguay | 51-200 | Exact match | 51 contacts → |
“We help release effective, fast and secure applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Eshardeshard.comHQ: Pessac, FranceReported employees: 11-50 | Pessac, France | 11-50 | Exact match | 49 contacts → |
“Expertise in cybersecurity testing takes years to build but can be lost in seconds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Innotech Engineering INCinnotechengineering.caHQ: Calgary, CanadaReported employees: 51-200 | Calgary, Canada | 51-200 | Exact match | 46 contacts → |
“InnoTech is an engineering company focused on Operational Technology (OT) spanning instrumentation, electrical and automation infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Beam Teknolojibeamteknoloji.comHQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 46 contacts → |
“BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Admeritia Gmbhadmeritia.deHQ: Langenfeld, GermanyReported employees: 11-50 | Langenfeld, Germany | 11-50 | Exact match | 45 contacts → |
“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  BQAbqa.nlHQ: Leusden, NetherlandsReported employees: 11-50 | Leusden, Netherlands | 11-50 | Exact match | 41 contacts → |
“BQA is een bedrijf waarbij de medewerker centraal staat.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Verve Square Technologiesvervesquare.comHQ: Pune, IndiaReported employees: 51-200 | Pune, India | 51-200 | Exact match | 34 contacts → |
“Verve Square Technologies is an IT services company focused on software testing organization established by Senior IT professionals who have worked across esteemed software…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Rubric Quality Consultants LTDrubric.muHQ: Port Louis, MauritiusReported employees: 51-200 | Port Louis, Mauritius | 51-200 | Exact match | 32 contacts → |
“Rubric is a Mauritius-headquartered digital consulting and technology company with a growing regional presence across Africa and the Indian Ocean region.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 242 company matches
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Ot system testing services: 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
242 records in the displayed employee bands.
0 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 242 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 ↗
Ot system testing services by location
2 lists · largest firstEvery Ot system testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for ot system testing services?
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 ot system testing services did RevenueBase find worldwide?
The saved snapshot records 242 matching company records, 17,519 tracked contacts and 3,573 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 ot system testing services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/ot-system-testing-services.
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 ot system testing services worldwide
RevenueBase records 242 matching company records for ot system testing services worldwide, with 17,519 tracked contacts and 3,573 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 ot system testing services 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 | Applusapplus.com HQ: Madrid, SpainReported employees: 10001+ | Madrid, Spain | 10001+ | Exact match | 7,376 contacts → |
“Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | TÜV Rheinland Greater Chinatuv.com HQ: Shanghai, ChinaReported employees: 5,001-10,000 | Shanghai, China | 5,001-10,000 | Exact match | 704 contacts → |
“An internationally leading independent third-party testing, inspection, certification, training, and consulting organization, TÜV Rheinland has over 150 years of experience.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Txone Networkstxone.com HQ: Taipei City, MexicoReported employees: 201-500 | Taipei City, Mexico | 201-500 | Exact match | 280 contacts → |
“TXOne Networks is the operations-first OT security partner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Miipe Quality Solutionsmiipe.com HQ: Markham, ON, CanadaReported employees: 201-500 | Markham, ON, Canada | 201-500 | Exact match | 264 contacts → |
“Miipe is an independent software testing consultancy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | MGA Research Corporationmgaresearch.com HQ: Akron, VA, United StatesReported employees: 201-500 | Akron, VA, United States | 201-500 | Exact match | 238 contacts → |
“MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Sentra Software House Ltdasentra.cl HQ: Santiago, ChileReported employees: 201-500 | Santiago, Chile | 201-500 | Exact match | 226 contacts → |
“SEnTRA es una empresa que brinda servicios de diseño y construcción de herramientas de certificación para el área de QA y desarrollamos Test de Esfuerzo o de Stress para…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ALS Arabiaalsarabia.com HQ: Dammam, Saudi ArabiaReported employees: 51-200 | Dammam, Saudi Arabia | 51-200 | Exact match | 200 contacts → |
“ALS Arabia is a diversified testing services organization with its headquarters located in Dammam, Saudi Arabia.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Kualitatem INCkualitatem.com HQ: NY, United StatesReported employees: 201-500 | NY, United States | 201-500 | Exact match | 199 contacts → |
“Kualitatem empowers businesses to deliver quality software.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Applus Pacificapplus.com.au HQ: Bibra Lake, AustraliaReported employees: 10001+ | Bibra Lake, Australia | 10001+ | Exact match | 158 contacts → |
“Applus+ is a worldwide leader in the testing, inspection, and certification sector.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Trialon Corporationelement.com HQ: Burton, IN, United StatesReported employees: 501-1,000 | Burton, IN, United States | 501-1,000 | Exact match | 156 contacts → |
“Trialon is now Element!” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | B Acceptanceb-acceptance.com HQ: Paris, FranceReported employees: 51-200 | Paris, France | 51-200 | Exact match | 140 contacts → |
“B/acceptance est un cabinet pur player du test fondé en 2011 et principalement orienté sur l’univers digital (e-commerce, luxe et santé)- Une approche focalisée Business…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Imat-Uveimat-uve.de HQ: Mönchengladbach, GA, GermanyReported employees: 201-500 | Mönchengladbach, GA, Germany | 201-500 | Exact match | 96 contacts → |
“As a globally accredited testing service provider, we specialize in validation and consulting in the automotive industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Applus Canadaapplus.ca HQ: Edmonton, ON, CanadaReported employees: 1,001-5,000 | Edmonton, ON, Canada | 1,001-5,000 | Exact match | 92 contacts → |
“Applus+ is a worldwide leader in the testing, inspection, certification, and engineering sectors.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Dagelecdagelec.com HQ: Bogota, ColombiaReported employees: 51-200 | Bogota, Colombia | 51-200 | Exact match | 90 contacts → |
“Somos solución integral en la ejecución de pruebas a sistemas eléctricos a cualquier nivel de tensión; Ofrecemos la ejecución de una amplia gama de pruebas eléctricas, soportados…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Clicqaclicqa.com HQ: Hyderabad, IndiaReported employees: 51-200 | Hyderabad, India | 51-200 | Exact match | 72 contacts → |
“ClicQA is an Independent Software Testing company dedicated to cater a wide range of software testing services to clients across the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Valtes Co.,ltdvaltes.co.jp HQ: 千代田区, JapanReported employees: 501-1,000 | 千代田区, Japan | 501-1,000 | Exact match | 64 contacts → |
“VALTES CO,LTD aims at maximizing added value through software testing, educational consulting, and content testing.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Caefe SAcaefe.com.ar HQ: Rosario, ArgentinaReported employees: 51-200 | Rosario, Argentina | 51-200 | Exact match | 64 contacts → |
“CAEFE es una empresa Argentina con 40 años de trayectoria, comprometida con el desarrollo de la industria mediante la realización de Ensayos No Destructivos y Estructurales.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Qalifiedqalified.com HQ: Montevideo, UruguayReported employees: 51-200 | Montevideo, Uruguay | 51-200 | Exact match | 51 contacts → |
“We help release effective, fast and secure applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Eshardeshard.com HQ: Pessac, FranceReported employees: 11-50 | Pessac, France | 11-50 | Exact match | 49 contacts → |
“Expertise in cybersecurity testing takes years to build but can be lost in seconds.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Innotech Engineering INCinnotechengineering.ca HQ: Calgary, CanadaReported employees: 51-200 | Calgary, Canada | 51-200 | Exact match | 46 contacts → |
“InnoTech is an engineering company focused on Operational Technology (OT) spanning instrumentation, electrical and automation infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Beam Teknolojibeamteknoloji.com HQ: Ankara, TürkiyeReported employees: 11-50 | Ankara, Türkiye | 11-50 | Exact match | 46 contacts → |
“BEAM Teknoloji is an Accredited Cyber Security Testing and Evaluation Laboratory established in 2011.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Admeritia Gmbhadmeritia.de HQ: Langenfeld, GermanyReported employees: 11-50 | Langenfeld, Germany | 11-50 | Exact match | 45 contacts → |
“As an owner-managed company, admeritia GmbH turned to industrial IT security shortly after its foundation in 2004.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | BQAbqa.nl HQ: Leusden, NetherlandsReported employees: 11-50 | Leusden, Netherlands | 11-50 | Exact match | 41 contacts → |
“BQA is een bedrijf waarbij de medewerker centraal staat.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Verve Square Technologiesvervesquare.com HQ: Pune, IndiaReported employees: 51-200 | Pune, India | 51-200 | Exact match | 34 contacts → |
“Verve Square Technologies is an IT services company focused on software testing organization established by Senior IT professionals who have worked across esteemed software…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Rubric Quality Consultants LTDrubric.mu HQ: Port Louis, MauritiusReported employees: 51-200 | Port Louis, Mauritius | 51-200 | Exact match | 32 contacts → |
“Rubric is a Mauritius-headquartered digital consulting and technology company with a growing regional presence across Africa and the Indian Ocean region.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 242 company matches
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Ot system testing services: 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
242 records in the displayed employee bands.
0 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 242 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 ↗
Ot system testing services by location
2 lists · largest firstEvery Ot system testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for ot system testing services?
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 ot system testing services did RevenueBase find worldwide?
The saved snapshot records 242 matching company records, 17,519 tracked contacts and 3,573 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 ot system testing services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/ot-system-testing-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗