Company lists · Data refreshed October 2026

Top 25 Cybersecurity companies based in Romania

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

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 111 companies tracked

Our directory lists 111 cybersecurity companies based in Romania, with 2,960 professional contacts and 1,517 email addresses. The list was last updated in October 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 October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Oct 1, 2026 86% judged on-target in blind review

111Companies

2,960Contacts tracked

1,517Verified emails

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The 25 largest cybersecurity companies based in Romania

Ranked by team size

Top 25 of 111 cybersecurity companies based in Romania, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Bitdefender	Strong evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	1,001-5,000	2,172 contacts →
	Strong evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Oct 1, 2026
2	Provision	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	118 contacts →
	Indirect evidence “ProVision is the leading Value Added Distributor (VAD) of IT security solutions in Romania with over 27 years experience in the field of information security solutions.” Source: RevenueBase Database · checked Oct 1, 2026
3	Safetech Innovations	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	51-200	55 contacts →
	Indirect evidence “Safetech Innovations was founded in 2011, by a team of Information Security and Information Technology experts, who decided to share their experience, to provide customers with…” Source: RevenueBase Database · checked Oct 1, 2026
4	Data Core Systems, Romania	Strong evidence	Sector 1, RomaniaHQ checked Oct 1, 2026	11-50	45 contacts →
	Strong evidence “Data Core Systems is a cybersecurity provider helping organizations tackle one of the biggest challenges of the digital environment.” Source: RevenueBase Database · checked Oct 1, 2026
5	Cryptodata Tech	Strong evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	44 contacts →
	Strong evidence “CryptoDATA Tech represents a company providing IT solutions in cybersecurity, developed using blockchain technology and A.I systems, keen on offering users worldwide security…” Source: RevenueBase Database · checked Oct 1, 2026
6	Cyber Threat Defense	Indirect evidence	Cluj-napoca, RomaniaHQ checked Oct 1, 2026	51-200	35 contacts →
	Indirect evidence “Cyber Threat Defense™ Everything we do is for companies to never have to worry about cyber security again.” Source: RevenueBase Database · checked Oct 1, 2026
7	Exclusive Networks Romania	Strong evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	30 contacts →
	Strong evidence “Exclusive Networks is a global trusted cybersecurity specialist for digital infrastructure helping to drive the transition to a totally trusted digital future for all people and…” Source: RevenueBase Database · checked Oct 1, 2026
8	Fort Cyber	Strong evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	25 contacts →
	Strong evidence “FORT is the cybersecurity defender you can trust to show up when you need it most.” Source: RevenueBase Database · checked Oct 1, 2026
9	BIT Sentinel	Indirect evidence	Sector 2, RomaniaHQ checked Oct 1, 2026	11-50	23 contacts →
	Indirect evidence “BIT SENTINEL is an information security company.” Source: RevenueBase Database · checked Oct 1, 2026
10	Nextgen Software	Strong evidence	Sectorul 1, RomaniaHQ checked Oct 1, 2026	11-50	21 contacts →
	Strong evidence “At Nextgen Software, we embarked on a mission to transform the cybersecurity landscape since 2015, as a visionary start-up rooted in Bucharest, Romania.” Source: RevenueBase Database · checked Oct 1, 2026
11	Omega Trust	Strong evidence	Sectorul 1, RomaniaHQ checked Oct 1, 2026	11-50	15 contacts →
	Strong evidence “OMEGA Trust is a Romanian company established in 2004, which is specialized in providing audit and consulting services & products in the field of Cybersecurity.” Source: RevenueBase Database · checked Oct 1, 2026
12	Infinigate Romania	Strong evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	1,001-5,000	14 contacts →
	Strong evidence “The Infinigate Group is a value-added distributor, fully committed to sustainable, leading-edge cybersecurity solutions.” Source: RevenueBase Database · checked Oct 1, 2026
13	Global Data	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	1-10	13 contacts →
	Indirect evidence “A successful cyber security approach has multiple layers of protection spread across the computers, networks, applications, or data that one intends to keep safe.” Source: RevenueBase Database · checked Oct 1, 2026
14	Cyber Smart Defence	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	11 contacts →
	Indirect evidence “Welcome to Cyber Smart Defence!” Source: RevenueBase Database · checked Oct 1, 2026
15	Cymed Security Technologies	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	10 contacts →
	Indirect evidence “CYMED a fost înființată ca divizie de securitate cibernetică a InfoWorld ulterior devenind entitate juridică independentă care deține propriul Centru de Operații de Securitate…” Source: RevenueBase Database · checked Oct 1, 2026
16	D3 Cyber	Strong evidence	Cluj-napoca, RomaniaHQ checked Oct 1, 2026	1-10	8 contacts →
	Strong evidence “We’re more than just cybersecurity professionals – we’re your defense against cyber threats.” Source: RevenueBase Database · checked Oct 1, 2026
17	Zamolxis	Strong evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	8 contacts →
	Strong evidence “Enterprise cybersecurity services: NIS2 & ISO 27001 compliance, penetration testing, red teaming, phishing simulations, attack surface management, MDR, vulnerability assessments…” Source: RevenueBase Database · checked Oct 1, 2026
18	Cyberlifehacks	Strong evidence	Cluj-napoca, RomaniaHQ checked Oct 1, 2026	1-10	6 contacts →
	Strong evidence “We are a company specialized in Cybersecurity for Embedded Systems across various industries, including Automotive, Industrial IoT, Consumer IoT, and Healthcare.” Source: RevenueBase Database · checked Oct 1, 2026
19	Intensec	Indirect evidence	Sectorul 1, RomaniaHQ checked Oct 1, 2026	11-50	6 contacts →
	Indirect evidence “Consulting Services and Training: Cyber-Security, Protection of Classified Information, Business Counterintelligence” Source: RevenueBase Database · checked Oct 1, 2026
20	Axyome	Indirect evidence	Craiova, RomaniaHQ checked Oct 1, 2026	1-10	6 contacts →
	Indirect evidence “With a steadfast commitment to safeguarding your digital world, we're here to provide top-notch solutions, industry insights, and expert guidance.” Source: RevenueBase Database · checked Oct 1, 2026
21	Dotdna	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	5 contacts →
	Indirect evidence “We are a boutique cyber security company that provides specialized solutions for your digital security needs.” Source: RevenueBase Database · checked Oct 1, 2026
22	Cybrops	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	5 contacts →
	Indirect evidence “We are on a mission to transform the way organizations reach and maintain digital operational resilience.” Source: RevenueBase Database · checked Oct 1, 2026
23	Hackout Organization	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	4 contacts →
	Indirect evidence “Hackout.ro” Source: RevenueBase Database · checked Oct 1, 2026
24	Best Internet Security Biss	Indirect evidence	Bucharest, RomaniaHQ checked Oct 1, 2026	11-50	4 contacts →
	Indirect evidence “Founded in 2001 in Bucharest, Romania, Best Internet Security \| BISS is a Cyber Security dedicated company, focused on providing towards Romanian organizations of all types and…” Source: RevenueBase Database · checked Oct 1, 2026
25	Blackshell	Strong evidence	Sector 1, RomaniaHQ checked Oct 1, 2026	11-50	4 contacts →
	Strong evidence “Blackshell stands out in cybersecurity innovation, providing companies and public institutions with advanced, yet accessible and user-friendly security solutions - including a…” Source: RevenueBase Database · checked Oct 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: cybersecurity companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names cybersecurity companies.
Partial evidence: Its own public description names part of cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 111 cybersecurity companies based in Romania

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Cybersecurity companies based in Romania at a glance

As of Oct 1, 2026

51.2%Verified-email coverage

26.7Average contacts per company

1-10Median size (employees)

49.5%Largest-city concentration · Bucharest

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured worldwide rather than for Romania, so it is reported there. Company counts and contact totals on this page are exact for Romania, over 111 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among cybersecurity companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Romania whose own description of what they do matches “cybersecurity companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names cybersecurity companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among cybersecurity companies, and records with no verified work email. Companies headquartered outside Romania are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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: Every listed company carries at least one verified work email, 1,517 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Cybersecurity companies by metro

Cybersecurity companies in Bucharest55

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 111 cybersecurity companies based in 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 2,960 professional contacts and 1,517 email addresses for the listed cybersecurity companies.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.