Company lists · Data verified August 2026

Top 25 Cybersecurity firms based in Ukraine

Name: Cybersecurity firms based 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

There are 79 cybersecurity firms headquartered in Ukraine (RevenueBase, August 2026). RevenueBase tracks 680 professional contacts across them, including 79 with verified work emails and 15 with mobile numbers. Kyiv is the largest hub.

This list covers cybersecurity firms headquartered in Ukraine, 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.

79Companies

680Contacts tracked

79Verified emails

15Mobile numbers

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The 25 largest cybersecurity firms based in Ukraine

Ranked by team size

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

Showing 25 of 79 cybersecurity firms based in Ukraine

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Cybersecurity firms based in Ukraine at a glance

As of Aug 28, 2026

11-50Median size (employees)

KyivLargest hub · 36 HQs

15Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Cybersecurity firms by metro

Metro	Companies
Cybersecurity firms in Kyiv	36
Cybersecurity firms in Kiev	14
Cybersecurity firms in Kiyiv	5
Cybersecurity firms in Kyiv Kyiv	5
Cybersecurity firms in Kyiv City	4
Cybersecurity firms in Kharkiv	3
Cybersecurity firms in Lviv	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 firms”, 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 firms are there based in Ukraine?

There are 79 cybersecurity firms headquartered in Ukraine as of August 2026 (RevenueBase).

What is the largest company on this list?

IT Specialist, headquartered in Kyiv, tops this list with the largest team on record.

Which city has the most cybersecurity firms?

Kyiv leads with 36 headquartered companies, followed by Kiev (14) and Kiyiv (5).

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 79 verified decision-maker contacts tracked across these 79 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.