Company lists · Data verified August 2026

Top 14 Cybersecurity software companies based in Romania

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 31 companies tracked

There are 31 cybersecurity software companies headquartered in Romania (RevenueBase, August 2026). RevenueBase tracks 226 professional contacts across them, including 101 with verified work emails and 4 with mobile numbers. Bucharest is the largest hub.

This list covers cybersecurity software companies headquartered in Romania, 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.

31Companies

226Contacts tracked

101Verified emails

4Mobile numbers

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The 14 largest cybersecurity software companies based in Romania

Ranked by team size

Top 14 of 31 cybersecurity software companies based in Romania, 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	Revelsi	Bucharest	51-200	66	24
2	Data Core Systems, Romania	n/a	11-50	43	27
3	BIT Sentinel	Bucharest	11-50	24	16
4	Nextgen Software	Bucuresti	11-50	21	12
5	Cyber Smart Defence	Bucharest	11-50	11	2
6	D3 Cyber	Cluj-Napoca	1-10	8	5
7	Dotdna	Bucharest	11-50	5	5
8	Blackshell	Bucharest	11-50	5	3
9	Best Internet Security Biss	n/a	11-50	4	1
10	Eset Romania	Bucharest	11-50	3	2
11	Netrunners	Bucharest	11-50	2	1
12	Sectio Aurea	n/a	11-50	1	1
13	TLN Computer	Brasov	1-10	1	1
14	Panthero	Satu Mare	1-10	1	1

Showing 14 of 31 cybersecurity software companies based in Romania

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Cybersecurity software companies based in Romania at a glance

As of Aug 28, 2026

1-10Median size (employees)

BucharestLargest hub · 13 HQs

4Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity software companies by metro

Metro	Companies
Cybersecurity software companies in Bucharest	13
Cybersecurity software companies in Cluj-Napoca	2
Cybersecurity software companies in Bucuresti	2
Cybersecurity software companies in Suceava	1
Cybersecurity software companies in Santandrei	1
Cybersecurity software companies in Satu Mare	1
Cybersecurity software companies in Bucharest Bucharest	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 software companies”, with match quality audited by blind human judging, and headquartered in Romania.
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 software companies are there based in Romania?

There are 31 cybersecurity software companies headquartered in Romania as of August 2026 (RevenueBase).

What is the largest company on this list?

Revelsi, headquartered in Bucharest, tops this list with the largest team on record.

Which city has the most cybersecurity software companies?

Bucharest leads with 13 headquartered companies, followed by Cluj-Napoca (2) and Bucuresti (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 101 verified decision-maker contacts tracked across these 31 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.