Company lists · Data verified August 2026

Top 25 Cybersecurity support companies based in Romania

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 87 companies tracked

There are 87 cybersecurity support companies headquartered in Romania (RevenueBase, August 2026). RevenueBase tracks 538 professional contacts across them, including 206 with verified work emails and 12 with mobile numbers. Bucharest is the largest hub.

This list covers cybersecurity support 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.

87Companies

538Contacts tracked

206Verified emails

12Mobile numbers

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The 25 largest cybersecurity support companies based in Romania

Ranked by team size

Top 25 of 87 cybersecurity support 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	Safetech Innovations	Bucharest	51-200	53	42
3	Cybergen	Bucharest	51-200	50	7
4	Data Core Systems, Romania	n/a	11-50	43	27
5	Cyber Threat Defense	Cluj-Napoca	51-200	34	14
6	BIT Sentinel	Bucharest	11-50	24	16
7	Fort Cyber	Bucharest	11-50	24	15
8	Unity Solutions SRL	n/a	11-50	20	11
9	Omega Trust	Bucharest	11-50	14	7
10	Global Data	Bucharest	1-10	13	1
11	Cymed Security Technologies	Bucharest	11-50	11	5
12	Cyber Smart Defence	Bucharest	11-50	11	2
13	D3 Cyber	Cluj-Napoca	1-10	8	5
14	Enersec Technology	Bucuresti	1-10	8	2
15	Cyberlifehacks	Cluj-Napoca	1-10	7	4
16	Zamolxis	Bucharest	11-50	7	1
17	Intensec	n/a	11-50	6	2
18	Axyome	Craiova	1-10	6	1
19	Dotdna	Bucharest	11-50	5	5
20	Blackshell	Bucharest	11-50	5	3
21	Cybrops	Bucharest	11-50	5	2
22	Best Internet Security Biss	n/a	11-50	4	1
23	Eset Romania	Bucharest	11-50	3	2
24	Netrunners	Bucharest	11-50	2	1
25	Risktronics	n/a	1-10	2	1

Showing 25 of 87 cybersecurity support companies based in Romania

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Cybersecurity support companies based in Romania at a glance

As of Aug 28, 2026

1-10Median size (employees)

BucharestLargest hub · 39 HQs

12Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

Cybersecurity support companies by metro

Metro	Companies
Cybersecurity support companies in Bucharest	39
Cybersecurity support companies in Cluj-Napoca	6
Cybersecurity support companies in Constanta	4
Cybersecurity support companies in Bucuresti	4
Cybersecurity support companies in Iasi	4
Cybersecurity support companies in Alba Iulia	2
Cybersecurity support companies in Craiova	2

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 support 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 support companies are there based in Romania?

There are 87 cybersecurity support 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 support companies?

Bucharest leads with 39 headquartered companies, followed by Cluj-Napoca (6) and Constanta (4).

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 206 verified decision-maker contacts tracked across these 87 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.