Company lists · Data verified August 2026
Top 13 Computer security companies based in Czechia
There are 28 computer security companies headquartered in Czechia (RevenueBase, August 2026). RevenueBase tracks 871 professional contacts across them, including 393 with verified work emails and 40 with mobile numbers. Prague is the largest hub.
This list covers computer security companies headquartered in Czechia, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.
The 13 largest computer security companies based in Czechia
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 |  AVAST | 290 |
| 2 |  Eset Česká Republika | 71 |
| 3 |  Freedivision | 8 |
| 4 |  Axelum | 7 |
| 5 |  Insighti | 4 |
| 6 |  Sonpo, A.S | 4 |
| 7 |  Sodat Technologies A.S | 1 |
| 8 |  Blindspot Technologies | 1 |
| 9 | Zymestic Solutions A.S | 2 |
| 10 | valvera.cz | 1 |
| 11 |  We Grow Together Safetica | 1 |
| 12 |  Cyberyg | 1 |
| 13 |  Cyberee Stay Safe | 1 |
Showing 13 of 28 computer security companies based in Czechia
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Computer security companies based in Czechia at a glance
As of Aug 28, 2026Companies by employee count
Computer security companies by metro
| Metro | Companies |
|---|---|
| Computer security companies in Prague | 8 |
| Computer security companies in Praha | 6 |
| Computer security companies in Brno | 2 |
| Computer security companies in Moravia | 1 |
| Computer security companies in Teplice | 1 |
| Computer security companies in Ceska Lipa | 1 |
| Computer security companies in Nusle | 1 |
How this list was built
- Source
- The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
- Inclusion
- Companies whose own business descriptions match “computer security companies”, with match quality audited by blind human judging, and headquartered in Czechia.
- 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
- Contact records re-verify on a rolling cadence; 4 contacts on this list were re-verified in the last 30 days.
- Refresh
- Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.
Frequently asked
How many computer security companies are there based in Czechia?
There are 28 computer security companies headquartered in Czechia as of August 2026 (RevenueBase).
What is the largest company on this list?
AVAST, headquartered in Czechia, tops this list with the largest team on record.
Which city has the most computer security companies?
Prague leads with 8 headquartered companies, followed by Praha (6) and Brno (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 393 verified decision-maker contacts tracked across these 28 companies.
How current is this list?
The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.
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About this data
RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.
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