Company lists · Data verified August 2026

Top 15 Defense cybersecurity companies based in Hungary

Name: Defense cybersecurity companies based in Hungary
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 34 companies tracked

There are 34 defense cybersecurity companies headquartered in Hungary (RevenueBase, August 2026). RevenueBase tracks 1,330 professional contacts across them, including 721 with verified work emails and 155 with mobile numbers. Budapest is the largest hub.

This list covers defense cybersecurity companies headquartered in Hungary, 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.

34Companies

1,330Contacts tracked

721Verified emails

155Mobile numbers

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The 15 largest defense cybersecurity companies based in Hungary

Ranked by team size

Top 15 of 34 defense cybersecurity companies based in Hungary, 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	Opswat	Veszprem	501-1,000	1,107	627
2	Black Cell	Budapest	51-200	48	28
3	Alverad Technology Focus LTD	Budapest	11-50	29	17
4	Falcon GT Consulting ZRT	n/a	1-10	14	12
5	Socurity	Dunakeszi	11-50	13	8
6	Spirity Enterprise Cplc	Budapest	11-50	13	8
7	Ravenfortech	Budapest	11-50	8	6
8	Miltech CO	Nyiregyhaza	51-200	7	3
9	Socwise	Budapest	51-200	6	4
10	cyex.hu	n/a	11-50	5	2
11	Subscuto	Budapest	1-10	3	2
12	Datron ITS ZRT	n/a	11-50	1	1
13	Iddqd KFT	Budapest	1-10	1	1
14	Cyberwise Cyber Consulting & Security Services	n/a	1-10	1	1
15	Zero DAY Solutions KFT	Nagycenk	1-10	1	1

Showing 15 of 34 defense cybersecurity companies based in Hungary

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Defense cybersecurity companies based in Hungary at a glance

As of Aug 28, 2026

1-10Median size (employees)

BudapestLargest hub · 15 HQs

155Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

501-1,000

Defense cybersecurity companies by metro

Metro	Companies
Defense cybersecurity companies in Budapest	15
Defense cybersecurity companies in Nyiregyhaza	1
Defense cybersecurity companies in Petervasara	1
Defense cybersecurity companies in Veszprem	1
Defense cybersecurity companies in Pecel	1
Defense cybersecurity companies in Dunakeszi	1
Defense cybersecurity companies in Nagycenk	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 “defense cybersecurity companies”, with match quality audited by blind human judging, and headquartered in Hungary.
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; 2 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 defense cybersecurity companies are there based in Hungary?

There are 34 defense cybersecurity companies headquartered in Hungary as of August 2026 (RevenueBase).

What is the largest company on this list?

Opswat, headquartered in Veszprem, tops this list with the largest team on record.

Which city has the most defense cybersecurity companies?

Budapest leads with 15 headquartered companies, followed by Nyiregyhaza (1) and Petervasara (1).

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 721 verified decision-maker contacts tracked across these 34 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.