Company lists · Data verified August 2026

Top 20 Cybersecurity companies based in Bucharest, Romania

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 46 companies tracked

Our directory lists 46 cybersecurity companies based in Bucharest, Romania, with 436 professional contacts and 164 email addresses. The list was last updated in August 2026, and Bucharest 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.

46Companies

436Contacts tracked

164Verified emails

11Mobile numbers

Unlock all 46 companies Free account · no credit card · 2 minutes

The 20 largest cybersecurity companies based in Bucharest, Romania

Ranked by team size

Top 20 of 46 cybersecurity companies based in Bucharest, 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	Cryptodata Tech	Bucharest	11-50	44	8
5	Exclusive Networks Romania	Bucharest	11-50	29	18
6	BIT Sentinel	Bucharest	11-50	24	16
7	Fort Cyber	Bucharest	11-50	24	15
8	Omega Trust	Bucharest	11-50	14	7
9	Global Data	Bucharest	1-10	13	1
10	Cymed Security Technologies	Bucharest	11-50	11	5
11	Cyber Smart Defence	Bucharest	11-50	11	2
12	Zamolxis	Bucharest	11-50	7	1
13	Dotdna	Bucharest	11-50	5	5
14	Blackshell	Bucharest	11-50	5	3
15	Cybrops	Bucharest	11-50	5	2
16	Hackout Organization	Bucharest	11-50	4	3
17	Eset Romania	Bucharest	11-50	3	2
18	Netrunners	Bucharest	11-50	2	1
19	Relax IT	Bucharest	11-50	1	1
20	Expand Cyber	Bucharest	1-10	1	1

Showing 20 of 46 cybersecurity companies based in Bucharest, Romania

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 164 reachable decision-makers.

Free account · no credit card

See all 46 companies

Cybersecurity companies based in Bucharest, Romania at a glance

As of Aug 28, 2026

11-50Median size (employees)

BucharestLargest hub · 46 HQs

11Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Cybersecurity companies by metro in Romania

Metro	Companies
Cybersecurity companies in Bucharest	46
Cybersecurity companies in Bucuresti	8
Cybersecurity companies in Cluj-Napoca	6
Cybersecurity companies in Timisoara	4
Cybersecurity companies in Brasov	4
Cybersecurity companies in Constanta	3
Cybersecurity companies in Iasi	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 Bucharest, 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 companies are in the directory?

The directory lists 46 cybersecurity companies based in Bucharest, Romania.

Which city has the most cybersecurity companies?

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

How many contacts are available for cybersecurity companies?

The directory includes 436 professional contacts and 164 email addresses for the listed cybersecurity companies.

Ready to reach these companies? Verified emails and direct dials for all 46 cybersecurity companies based in Bucharest, Romania. Start with a free account, no credit card.

Get the full list

Related lists

Cybersecurity companies by geography

Browse the directory

Browse: Companies home · Cybersecurity companies in Romania · All Romania lists · All Cybersecurity companies lists · New lists

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.