Company lists · Data refreshed September 2026
Top 20 Security consulting firms based in Romania
RevenueBase identified 91 security consulting firms headquartered in Romania as of September 2026 and tracks 569 professional contacts across them, including 122 with verified work emails and 27 with mobile numbers. Bucharest is the largest hub.
This list covers security consulting firms headquartered in Romania, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 20 largest security consulting firms based in Romania
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | Guard ONEPartial evidence | 64 | |||
“VIZIUNE Setarea unor noi standarde de excelenta in industria de securitate romaneasca, contribuind astfel la cresterea gradului de satisfactie al clientilor, la dezvoltarea…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 49 | ||||
“NSSG is a risk management company that provides strategic, customer-focused advisory and support services to businesses operating globally.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 45 | ||||
“Data Core Systems is a cybersecurity provider helping organizations tackle one of the biggest challenges of the digital environment.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 25 | ||||
“FORT is the cybersecurity defender you can trust to show up when you need it most.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 | ||||
“BIT SENTINEL is an information security company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 13 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 11 | ||||
“Welcome to Cyber Smart Defence!” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 10 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 8 | ||||
“We’re more than just cybersecurity professionals – we’re your defense against cyber threats.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 8 | ||||
“Our team includes seasoned consultants and technicians, skilled and certified in all relevant areas of information / IT security who will design, develop, implement and support…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 | ||||
“Security Business team este o echipa formata din consultanti de securitate cu o experienta de peste 10 ani, atat in concepte de securitate cat si instalarea efectiva a peste 800…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 8 | ||||
“Enterprise cybersecurity services: NIS2 & ISO 27001 compliance, penetration testing, red teaming, phishing simulations, attack surface management, MDR, vulnerability assessments…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 7 | ||||
“At KSS, we understand that security is more than just technology-it’s about peace of mind, trust, and protecting what matters most.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 6 | ||||
“Consulting Services and Training: Cyber-Security, Protection of Classified Information, Business Counterintelligence” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | 6 | ||||
“With a steadfast commitment to safeguarding your digital world, we're here to provide top-notch solutions, industry insights, and expert guidance.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 | ||||
“Netrunners offers a comprehensive range of cybersecurity services, including Penetration Testing, Red Team Engagements, Cybersecurity Training, and Security Audits.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 1 | ||||
“Sectio Aurea is an advanced cybersecurity consulting company established in 2018, specializing in security audits, strategic cybersecurity advisory, outsourced security services…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 | ||||
“ITSales partners with businesses to make them secure, compliant, and audit-ready.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 20 of 91 security consulting firms based in Romania
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Security consulting firms based in Romania at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Romania whose own description of what they do matches “security consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among security consulting firms, 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 an evidence 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, 122 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 September 6, 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.
Security consulting firms by metro
- Security consulting firms in Bucharest32
Frequently asked
How many security consulting firms are there based in Romania?
RevenueBase identified 91 security consulting firms headquartered in Romania as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Guard ONE, headquartered in Bucuresti, tops this list with the largest team on record.
Which city has the most security consulting firms?
Bucharest leads with 32 headquartered companies, followed by Bucuresti (15) and Cluj-Napoca (5).
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 122 verified decision-maker contacts tracked across these 91 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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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 SmartSearch, 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.
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