Company lists · Data refreshed September 2026
Top 25 Cybersecurity businesses based in Czechia
RevenueBase identified 147 company matches for cybersecurity businesses associated with Czechia as of September 2026 and tracks 4,578 professional contacts across them, including 2,648 with verified work emails. Prague is the largest hub.
This list covers company matches for cybersecurity businesses associated with Czechia, 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 September 21, 2026.
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 cybersecurity businesses based in Czechia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 635 contacts → | ||||
Exact match “Avast is a leader in Cyber Safety and part of Gen™ (NASDAQ: GEN), a global company dedicated to powering Digital Freedom with a family of trusted consumer brands.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 2 | 168 contacts → | ||||
Exact match “Whalebone develops user-centric cybersecurity products for telcos, ISPs, enterprises, government and public institutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 3 | 72 contacts → | ||||
Exact match “Corpus Solutions is a consulting and technology company specializing in applied cyber security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 4 | 52 contacts → | ||||
Exact match “INTEGRA is a trusted technology partner specializing in cybersecurity, ethical hacking, and IT talent delivery.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 5 | 50 contacts → | ||||
Exact match “GREYCORTEX is an EU-based cybersecurity company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 6 | 43 contacts → | ||||
Exact match “At AXENTA, we help our customers identify and implement the most effective, tailored cybersecurity solutions.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 7 | 42 contacts → | ||||
Exact match “Exclusive Networks is a global trusted cybersecurity specialist for digital infrastructure helping to drive the transition to a totally trusted digital future for all people and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 8 | 40 contacts → | ||||
Exact match “Qrator Labs is a team of tech experts focused on ensuring continuous network availability of clients’ resources 24/7 worldwide.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 9 | 36 contacts → | ||||
Exact match “Chraňte své podnikání.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 10 | 32 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 11 | 29 contacts → | ||||
Exact match “Naše společnost je lídrem v síťové infrastruktuře a kybernetické bezpečnosti.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 12 | 25 contacts → | ||||
Exact match “Who we are?” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 13 | 24 contacts → | ||||
Exact match “GoodAccess is the world's most usable cybersecurity SaaS for enabling secure remote access to digital resources.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 14 | 23 contacts → | ||||
Exact match “Společnost GC System a.s.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 15 | 19 contacts → | ||||
Exact match “TeskaLabs is a software vendor of cybersecurity and data privacy products.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 16 | 15 contacts → | ||||
Exact match “We are an information security company.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 17 | 15 contacts → | ||||
Exact match “Naše motto: For safety reasons V roce 2005 jsme si při založení FreeDivision dali za cíl přinášet na český trh nejkvalitnější bezpečnostní hardwarové a softwarové nástroje.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 18 | 14 contacts → | ||||
Exact match “MyCom Solutions se výhradně zaměřuje na IT outsourcing a kybernetickou bezpečnost.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 19 | 14 contacts → | ||||
Exact match “AI Powered Cyber Security Risk Analytics, Compliance and Process Management Platform for CISO's, cyber security and compliance teams Reduce risk resolution by 40%+, streamline…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 20 | 13 contacts → | ||||
Exact match “GIA Global Group is a team of market research, analysis and event management professionals aiming to boost business intelligence with a focus on cyber security and operational…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 21 | 12 contacts → | ||||
Exact match “Naše společnost poskytuje v oblasti informační a kybernetické bezpečnosti následující služby- Identifikace aktuálního stavu kybernetické bezpečnosti a vypracování plánu pro…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 22 | 12 contacts → | ||||
Exact match “We are Cyber Rangers – a team of professional ethical hackers helping companies and institutions prepare for cyber threats.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 23 | 12 contacts → | ||||
Exact match “Trusted Network Solutions provides penetration testing and cybersecurity governance services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 24 | 11 contacts → | ||||
Exact match “Jsme ochránci a správci firemního IT prostředí.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase | |||||
| 25 | 10 contacts → | ||||
Exact match “Founded in 2010, exTerra Services was established to provide high quality and tailored IT and cyber security solutions.” Recorded in the RevenueBase company graph · Sep 21, 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 “cybersecurity businesses”. 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 147 cybersecurity businesses based in Czechia
See the full list, filter by size, metro and specialty, and access 2,648 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cybersecurity businesses based in Czechia at a glance
As of Sep 21, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for Czechia, so it is reported there. Company counts and contact totals on this page are exact for Czechia, over 147 companies.
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.
- What qualifies
- Company records associated with Czechia whose business descriptions match “cybersecurity businesses” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every displayed company carries at least one verified work email. RevenueBase tracks 2,648 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 September 21, 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.
Cybersecurity businesses by metro
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 “cybersecurity businesses”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cybersecurity businesses are there based in Czechia?
RevenueBase identified 147 company matches for cybersecurity businesses associated with Czechia as of September 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?
AVAST tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cybersecurity businesses?
Prague leads with 73 company records, followed by Brno (15) and Olomouc (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 2,648 professional contacts with verified work emails tracked across these 147 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 September 21, 2026.
Ready to reach these companies? Verified emails and direct dials for all 147 cybersecurity businesses based in Czechia. Start with a free account, no credit card.
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Cybersecurity businesses by geography
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- Cybersecurity businesses based in Melbourne, Australia
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- Cybersecurity businesses based in Sydney, Australia
- Cybersecurity businesses based in Vienna, Austria
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- Cybersecurity businesses based in Brussels, Belgium
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- Cybersecurity businesses based in Belo Horizonte, Brazil
Browse the directory
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cybersecurity businesses based in Buenos Aires, Argentina
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- Cybersecurity businesses based in Canberra, Australia
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Company intelligence · public preview
Top 25 cybersecurity businesses based in Czechia
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 147 matching company records for cybersecurity businesses based in Czechia, with 4,578 tracked contacts and 2,648 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: September 21, 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 cybersecurity businesses based in Czechia
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 |  AVASTavast.comHQ: Prague, Czech RepublicReported employees: 1,001-5,000 | Prague, Czech Republic | 1,001-5,000 | Exact match | 635 contacts → |
“Avast is a leader in Cyber Safety and part of Gen™ (NASDAQ: GEN), a global company dedicated to powering Digital Freedom with a family of trusted consumer brands.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Whalebonewhalebone.ioHQ: Brno, Czech RepublicReported employees: 51-200 | Brno, Czech Republic | 51-200 | Exact match | 168 contacts → |
“Whalebone develops user-centric cybersecurity products for telcos, ISPs, enterprises, government and public institutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Corpus Solutions A.Scorpus.czHQ: Praha 4, Czech RepublicReported employees: 51-200 | Praha 4, Czech Republic | 51-200 | Exact match | 72 contacts → |
“Corpus Solutions is a consulting and technology company specializing in applied cyber security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Integra Emeaintegra.czHQ: Prague 8, Czech RepublicReported employees: 51-200 | Prague 8, Czech Republic | 51-200 | Exact match | 52 contacts → |
“INTEGRA is a trusted technology partner specializing in cybersecurity, ethical hacking, and IT talent delivery.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Greycortexgreycortex.comHQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 50 contacts → |
“GREYCORTEX is an EU-based cybersecurity company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Axentaaxenta.czHQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 43 contacts → |
“At AXENTA, we help our customers identify and implement the most effective, tailored cybersecurity solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Exclusive Networks Czechiaexclusive-networks.comHQ: Prague 7, Czech RepublicReported employees: 11-50 | Prague 7, Czech Republic | 11-50 | Exact match | 42 contacts → |
“Exclusive Networks is a global trusted cybersecurity specialist for digital infrastructure helping to drive the transition to a totally trusted digital future for all people and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Qrator Labsqrator.netHQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 40 contacts → |
“Qrator Labs is a team of tech experts focused on ensuring continuous network availability of clients’ resources 24/7 worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Praha 7, Czech RepublicReported employees: 11-50 | Praha 7, Czech Republic | 11-50 | Exact match | 36 contacts → |
“Chraňte své podnikání.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Brain Computers S.R.Obrain.czHQ: Ostrava, Czech RepublicReported employees: 11-50 | Ostrava, Czech Republic | 11-50 | Exact match | 32 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 |  Compunet S.R.Ocompunet.czHQ: Praha 5, Czech RepublicReported employees: 11-50 | Praha 5, Czech Republic | 11-50 | Exact match | 29 contacts → |
“Naše společnost je lídrem v síťové infrastruktuře a kybernetické bezpečnosti.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Noibitnoibit.comHQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 25 contacts → |
“Who we are?” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Goodaccessgoodaccess.comHQ: Ústí Nad Labem, Czech RepublicReported employees: 11-50 | Ústí Nad Labem, Czech Republic | 11-50 | Exact match | 24 contacts → |
“GoodAccess is the world's most usable cybersecurity SaaS for enabling secure remote access to digital resources.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  GC System A.Sgcsystem.czHQ: Brno, Czech RepublicReported employees: 51-200 | Brno, Czech Republic | 51-200 | Exact match | 23 contacts → |
“Společnost GC System a.s.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Teskalabsteskalabs.comHQ: Praha 10, Czech RepublicReported employees: 11-50 | Praha 10, Czech Republic | 11-50 | Exact match | 19 contacts → |
“TeskaLabs is a software vendor of cybersecurity and data privacy products.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Axelumaxelum.euHQ: Prague 3, Czech RepublicReported employees: 11-50 | Prague 3, Czech Republic | 11-50 | Exact match | 15 contacts → |
“We are an information security company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Freedivisionfreedivision.comHQ: Praha 10, Czech RepublicReported employees: 11-50 | Praha 10, Czech Republic | 11-50 | Exact match | 15 contacts → |
“Naše motto: For safety reasons V roce 2005 jsme si při založení FreeDivision dali za cíl přinášet na český trh nejkvalitnější bezpečnostní hardwarové a softwarové nástroje.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Mycom Solutions, S.R.Omycom.czHQ: Praha 9, Czech RepublicReported employees: 11-50 | Praha 9, Czech Republic | 11-50 | Exact match | 14 contacts → |
“MyCom Solutions se výhradně zaměřuje na IT outsourcing a kybernetickou bezpečnost.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Offensive Security Managerofsecman.ioHQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 14 contacts → |
“AI Powered Cyber Security Risk Analytics, Compliance and Process Management Platform for CISO's, cyber security and compliance teams Reduce risk resolution by 40%+, streamline…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  GIA Global Groupgiaglobalgroup.comHQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 13 contacts → |
“GIA Global Group is a team of market research, analysis and event management professionals aiming to boost business intelligence with a focus on cyber security and operational…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Alphaserveralphaserver.czHQ: Prague 15, Czech RepublicReported employees: 11-50 | Prague 15, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Naše společnost poskytuje v oblasti informační a kybernetické bezpečnosti následující služby- Identifikace aktuálního stavu kybernetické bezpečnosti a vypracování plánu pro…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Cyber Rangerscyber-rangers.comHQ: Kralupy Nad Vltavou, Czech RepublicReported employees: 1-10 | Kralupy Nad Vltavou, Czech Republic | 1-10 | Exact match | 12 contacts → |
“We are Cyber Rangers – a team of professional ethical hackers helping companies and institutions prepare for cyber threats.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Trusted Network Solutions provides penetration testing and cybersecurity governance services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Patron-Itpatron-it.czHQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 11 contacts → |
“Jsme ochránci a správci firemního IT prostředí.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Exterra Services S.R.Oexterra-services.czHQ: Prague 9, Czech RepublicReported employees: 1-10 | Prague 9, Czech Republic | 1-10 | Exact match | 10 contacts → |
“Founded in 2010, exTerra Services was established to provide high quality and tailored IT and cyber security solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 147 company matches
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Cybersecurity businesses: dataset insights
September 21, 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
147 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 worldwide rather than for Czechia, so it is reported there. Company counts and contact totals on this page are exact for Czechia, over 147 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: September 21, 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 ↗
Cybersecurity businesses by metro
Questions about this company list
What does Exact match mean for cybersecurity businesses?
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 cybersecurity businesses did RevenueBase find based in Czechia?
The saved snapshot records 147 matching company records, 4,578 tracked contacts and 2,648 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: September 21, 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.
Related lists
Cybersecurity businesses by geography
- Cybersecurity businesses based in Buenos Aires, Argentina
- Cybersecurity businesses based in Adelaide, Australia
- Cybersecurity businesses based in Brisbane, Australia
- Cybersecurity businesses based in Canberra, Australia
- Cybersecurity businesses based in Melbourne, Australia
- Cybersecurity businesses based in Perth, Australia
- Cybersecurity businesses based in Sydney, Australia
- Cybersecurity businesses based in Vienna, Austria
- Cybersecurity businesses based in Dhaka, Bangladesh
- Cybersecurity businesses based in Brussels, Belgium
- Cybersecurity businesses based in Barueri, Brazil
- Cybersecurity businesses based in Belo Horizonte, Brazil
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 cybersecurity businesses based in Czechia. Snapshot: September 21, 2026. https://revenuebase.ai/companies/cybersecurity-businesses/czechia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- New lists
- Cybersecurity businesses based in Buenos Aires, Argentina
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Company intelligence · public preview
Top 25 cybersecurity businesses based in Czechia
RevenueBase records 147 matching company records for cybersecurity businesses based in Czechia, with 4,578 tracked contacts and 2,648 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: September 21, 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 cybersecurity businesses based in Czechia
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 | AVASTavast.com HQ: Prague, Czech RepublicReported employees: 1,001-5,000 | Prague, Czech Republic | 1,001-5,000 | Exact match | 635 contacts → |
“Avast is a leader in Cyber Safety and part of Gen™ (NASDAQ: GEN), a global company dedicated to powering Digital Freedom with a family of trusted consumer brands.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Whalebonewhalebone.io HQ: Brno, Czech RepublicReported employees: 51-200 | Brno, Czech Republic | 51-200 | Exact match | 168 contacts → |
“Whalebone develops user-centric cybersecurity products for telcos, ISPs, enterprises, government and public institutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Corpus Solutions A.Scorpus.cz HQ: Praha 4, Czech RepublicReported employees: 51-200 | Praha 4, Czech Republic | 51-200 | Exact match | 72 contacts → |
“Corpus Solutions is a consulting and technology company specializing in applied cyber security.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Integra Emeaintegra.cz HQ: Prague 8, Czech RepublicReported employees: 51-200 | Prague 8, Czech Republic | 51-200 | Exact match | 52 contacts → |
“INTEGRA is a trusted technology partner specializing in cybersecurity, ethical hacking, and IT talent delivery.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Greycortexgreycortex.com HQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 50 contacts → |
“GREYCORTEX is an EU-based cybersecurity company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Axentaaxenta.cz HQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 43 contacts → |
“At AXENTA, we help our customers identify and implement the most effective, tailored cybersecurity solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Exclusive Networks Czechiaexclusive-networks.com HQ: Prague 7, Czech RepublicReported employees: 11-50 | Prague 7, Czech Republic | 11-50 | Exact match | 42 contacts → |
“Exclusive Networks is a global trusted cybersecurity specialist for digital infrastructure helping to drive the transition to a totally trusted digital future for all people and…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Qrator Labsqrator.net HQ: Prague, Czech RepublicReported employees: 51-200 | Prague, Czech Republic | 51-200 | Exact match | 40 contacts → |
“Qrator Labs is a team of tech experts focused on ensuring continuous network availability of clients’ resources 24/7 worldwide.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | HQ: Praha 7, Czech RepublicReported employees: 11-50 | Praha 7, Czech Republic | 11-50 | Exact match | 36 contacts → |
“Chraňte své podnikání.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Brain Computers S.R.Obrain.cz HQ: Ostrava, Czech RepublicReported employees: 11-50 | Ostrava, Czech Republic | 11-50 | Exact match | 32 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 11 | Compunet S.R.Ocompunet.cz HQ: Praha 5, Czech RepublicReported employees: 11-50 | Praha 5, Czech Republic | 11-50 | Exact match | 29 contacts → |
“Naše společnost je lídrem v síťové infrastruktuře a kybernetické bezpečnosti.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Noibitnoibit.com HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 25 contacts → |
“Who we are?” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Goodaccessgoodaccess.com HQ: Ústí Nad Labem, Czech RepublicReported employees: 11-50 | Ústí Nad Labem, Czech Republic | 11-50 | Exact match | 24 contacts → |
“GoodAccess is the world's most usable cybersecurity SaaS for enabling secure remote access to digital resources.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | GC System A.Sgcsystem.cz HQ: Brno, Czech RepublicReported employees: 51-200 | Brno, Czech Republic | 51-200 | Exact match | 23 contacts → |
“Společnost GC System a.s.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Teskalabsteskalabs.com HQ: Praha 10, Czech RepublicReported employees: 11-50 | Praha 10, Czech Republic | 11-50 | Exact match | 19 contacts → |
“TeskaLabs is a software vendor of cybersecurity and data privacy products.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Axelumaxelum.eu HQ: Prague 3, Czech RepublicReported employees: 11-50 | Prague 3, Czech Republic | 11-50 | Exact match | 15 contacts → |
“We are an information security company.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Freedivisionfreedivision.com HQ: Praha 10, Czech RepublicReported employees: 11-50 | Praha 10, Czech Republic | 11-50 | Exact match | 15 contacts → |
“Naše motto: For safety reasons V roce 2005 jsme si při založení FreeDivision dali za cíl přinášet na český trh nejkvalitnější bezpečnostní hardwarové a softwarové nástroje.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Mycom Solutions, S.R.Omycom.cz HQ: Praha 9, Czech RepublicReported employees: 11-50 | Praha 9, Czech Republic | 11-50 | Exact match | 14 contacts → |
“MyCom Solutions se výhradně zaměřuje na IT outsourcing a kybernetickou bezpečnost.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Offensive Security Managerofsecman.io HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 14 contacts → |
“AI Powered Cyber Security Risk Analytics, Compliance and Process Management Platform for CISO's, cyber security and compliance teams Reduce risk resolution by 40%+, streamline…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | GIA Global Groupgiaglobalgroup.com HQ: Prague, Czech RepublicReported employees: 11-50 | Prague, Czech Republic | 11-50 | Exact match | 13 contacts → |
“GIA Global Group is a team of market research, analysis and event management professionals aiming to boost business intelligence with a focus on cyber security and operational…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Alphaserveralphaserver.cz HQ: Prague 15, Czech RepublicReported employees: 11-50 | Prague 15, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Naše společnost poskytuje v oblasti informační a kybernetické bezpečnosti následující služby- Identifikace aktuálního stavu kybernetické bezpečnosti a vypracování plánu pro…” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cyber Rangerscyber-rangers.com HQ: Kralupy Nad Vltavou, Czech RepublicReported employees: 1-10 | Kralupy Nad Vltavou, Czech Republic | 1-10 | Exact match | 12 contacts → |
“We are Cyber Rangers – a team of professional ethical hackers helping companies and institutions prepare for cyber threats.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 12 contacts → |
“Trusted Network Solutions provides penetration testing and cybersecurity governance services.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Patron-Itpatron-it.cz HQ: Brno, Czech RepublicReported employees: 11-50 | Brno, Czech Republic | 11-50 | Exact match | 11 contacts → |
“Jsme ochránci a správci firemního IT prostředí.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Exterra Services S.R.Oexterra-services.cz HQ: Prague 9, Czech RepublicReported employees: 1-10 | Prague 9, Czech Republic | 1-10 | Exact match | 10 contacts → |
“Founded in 2010, exTerra Services was established to provide high quality and tailored IT and cyber security solutions.” Recorded description excerpt · September 21, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 147 company matches
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Cybersecurity businesses: dataset insights
September 21, 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
147 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 worldwide rather than for Czechia, so it is reported there. Company counts and contact totals on this page are exact for Czechia, over 147 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: September 21, 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 ↗
Cybersecurity businesses by metro
Questions about this company list
What does Exact match mean for cybersecurity businesses?
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 cybersecurity businesses did RevenueBase find based in Czechia?
The saved snapshot records 147 matching company records, 4,578 tracked contacts and 2,648 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: September 21, 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 cybersecurity businesses based in Czechia. Snapshot: September 21, 2026. https://revenuebase.ai/companies/cybersecurity-businesses/czechia.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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