Company lists · Data verified August 2026

Top 25 Cybersecurity companies in Ukraine

Name: Cybersecurity companies in Ukraine
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 79 companies tracked

Our directory lists 79 cybersecurity companies in Ukraine, with 731 professional contacts and 101 email addresses. The list was last updated in August 2026, and Kyiv 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.

79Companies

731Contacts tracked

101Verified emails

14Mobile numbers

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The 25 largest cybersecurity companies in Ukraine

Ranked by team size

Top 25 of 79 cybersecurity companies in Ukraine, 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	IT Specialist	Kyiv	51-200	187	1
2	Холдинг Sheriff	Kiyiv	1,001-5,000	57	13
3	Svit IT LTD	Kyiv	11-50	27	11
4	FS Group	Odessa	11-50	23	4
5	Iterasec	Lviv	11-50	19	6
6	10guards	Kyiv City	11-50	19	5
7	Darkcloud	Kyiv	11-50	16	2
8	Labyrinth Security Solutions	Kyiv	11-50	15	3
9	Rmrf Tech	Kyiv Kyiv	11-50	12	6
10	St&t	Kiyiv	11-50	12	2
11	Silvery LLC	Kyiv	11-50	11	9
12	Betta Security	Kiev	11-50	11	6
13	Cyber Nnov8	Kyiv	11-50	10	1
14	Amonsul	Kyiv	1-10	8	3
15	Openminds	Kyiv	11-50	8	2
16	Smartnet LLC	Kiev	1-10	8	2
17	Security Expert Group	Kyiv	11-50	8	1
18	Solidity	Kiyiv	51-200	7	3
19	Tenendo	n/a	11-50	7	2
20	Kavitech	Kyiv	11-50	6	2
21	Pakurity	Kyiv	1-10	6	1
22	Hackcontrol	Kharkiv	11-50	5	3
23	Digvel	Kyiv	1-10	5	3
24	Rework-Space	Ternopil	1-10	5	3
25	OCTAL	Lviv	11-50	5	1
26	Cyber Force	Kyiv	1-10	2	1
27	Cyberclew	Kyiv Kyiv	11-50	1	1
28	Digvel International	Dnipro	11-50	1	1

Showing 25 of 79 cybersecurity companies in Ukraine

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Cybersecurity companies in Ukraine at a glance

As of Aug 28, 2026

11-50Median size (employees)

KyivLargest hub · 34 HQs

14Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Companies by metro

Metro	Companies
Cybersecurity companies in Kyiv	34
Cybersecurity companies in Kiev	14
Cybersecurity companies in Kiyiv	6
Cybersecurity companies in Kyiv Kyiv	5
Cybersecurity companies in Lviv	4
Cybersecurity companies in Kyiv City	4
Cybersecurity companies in Kharkiv	3

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 Ukraine.
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; 0 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 79 cybersecurity companies in Ukraine.

Which city has the most cybersecurity companies?

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

How many contacts are available for cybersecurity companies?

The directory includes 731 professional contacts and 101 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.