Company lists · Data verified August 2026

Top 23 Cybersecurity companies based in Prague, Czechia

Name: Cybersecurity companies based in Prague, Czechia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 50 companies tracked

Our directory lists 50 cybersecurity companies based in Prague, Czechia, with 215 professional contacts and 68 email addresses. The list was last updated in August 2026, and Prague is the single most-represented city among the companies listed.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of August 28, 2026.

50Companies

215Contacts tracked

68Verified emails

6Mobile numbers

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The 23 largest cybersecurity companies based in Prague, Czechia

Ranked by team size

Top 23 of 50 cybersecurity companies based in Prague, Czechia, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	ISECO	Prague	11-50	17	7
2	Offensive Security Manager	Prague	11-50	14	1
3	Alphaserver	Prague	11-50	13	10
4	Axelum	Prague	11-50	13	7
5	Validato	Prague	11-50	9	4
6	icybear.io	Prague	1-10	9	2
7	Sec4good	Prague	1-10	7	5
8	Ict-Group	Prague	11-50	7	4
9	Aceproit	Prague	1-10	6	5
10	Askon International S.R.O	Prague	1-10	5	2
11	Asecpro S.R.O	Prague	1-10	4	2
12	ALP Security, S.R.O	Prague	1-10	4	2
13	Ares Cyber Defense	Prague	1-10	3	3
14	Securu	Prague	11-50	3	2
15	Blindspot Technologies	Prague	11-50	3	1
16	Zymestic Solutions A.S	Prague	51-200	2	2
17	Extoom	Prague	1-10	2	2
18	ELLIO	Prague	1-10	2	2
19	Ravenguard	Prague	1-10	2	1
20	Cyberyg	Prague	1-10	1	1
21	Cyberpope	Prague	1-10	1	1
22	Rolken	Prague	1-10	1	1
23	Ipexo, S.R.O	Prague	1-10	1	1

Showing 23 of 50 cybersecurity companies based in Prague, Czechia

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Cybersecurity companies based in Prague, Czechia at a glance

As of Aug 28, 2026

1-10Median size (employees)

PragueLargest hub · 50 HQs

6Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity companies by metro in Czechia

Metro	Companies
Cybersecurity companies in Prague	50
Cybersecurity companies in Praha	22
Cybersecurity companies in Brno	13
Cybersecurity companies in Liberec	2
Cybersecurity companies in Teplice	1
Cybersecurity companies in Jablonec Nad Nisou	1
Cybersecurity companies in Moravia	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 “cybersecurity companies”, with match quality audited by blind human judging, and headquartered in Prague, 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; 1 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 cybersecurity companies are in the directory?

The directory lists 50 cybersecurity companies based in Prague, Czechia.

Which city has the most cybersecurity companies?

Prague is the single most-represented city among the cybersecurity companies on the list.

How many contacts are available for cybersecurity companies?

The directory includes 215 professional contacts and 68 email addresses for the listed cybersecurity companies.

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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.