Company lists · Data refreshed September 2026
Top 25 IT security consulting firms based in Hungary
RevenueBase identified 80 IT security consulting firms headquartered in Hungary as of September 2026 and tracks 457 professional contacts across them, including 216 with verified work emails and 8 with mobile numbers. Budapest is the largest hub.
This list covers IT security consulting firms headquartered in Hungary, 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 4, 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 25 largest IT security consulting firms based in Hungary
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 48 | ||||
“Black Cell is a end-to-end cybersecurity provider company with more than 15 years of experience, focused on Enterprise Security Monitoring and practical threat detection across…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 39 | ||||
“Fast-growing IT company •With 30 experts and with an extensive ecosystem of additional ~100 professionals •Providing consulting, software development and system integration…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | 29 | ||||
“For those who take seriously what they do, they always have something to lose!” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 24 | ||||
“A FORTIX Consulting Kft.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 | ||||
“A Clico Hungary Kft az 1991-ben alapított lengyel Clico Sp.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 22 | ||||
“kancellar.hu is one of Hungary’s leading information security consulting company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | 14 | ||||
“Our secured environment is of utmost importance to Falcon, as well as the national and international security ratings like NATO AQAP2110, ISO 9001, ISO 27001 and National Security…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 14 | ||||
“ITSecure Kft is a team of IT professionals with over 20 years of experience and internationally recognised certifications (CISA, CDPSE, CISSP, CEH).” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 13 | ||||
“Daily life relies on a safe and stable cyber environment.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 13 | ||||
“Spirity Enterprise is a global IT consulting and cybersecurity firm, committed to delivering cutting-edge solutions that empower businesses to thrive securely and efficiently in…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 13 | ||||
“Our company was founded in 2019 with locations in Budapest and Szeged.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 | ||||
“TrustaaS is an innovative EU-based technology firm founded by security professionals delivering world-class security, IT risk management and compliance services.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 | ||||
“The Hungarian company of PR-AUDIT Ltd.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 8 | ||||
“We are a leading cybersecurity and digital forensics company, specializing in incident response, fraud detection, forensic investigations and penetration testing.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 7 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 6 | ||||
“SOCWISE is the International security service provider of EURO ONE, which enables companies to handle security incidents with the utmost preparedness to secure and protect the…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 | ||||
“EasyWay Systems was founded in 2015 by a team of highly trained consultants, architects and developers working together on large scale enterprise IT projects for years.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 5 | ||||
“Our company was founded in 2002.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 | ||||
“Subscuto addresses the challenges of securing your business in the era of digital transformation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 | ||||
“Az Antotech IT Solutions informatikai tanácsadó cég megoldásainak és szolgáltatásainak fő területei a felhő alapú üzleti megoldások, a belső védelem és az adatbiztonság, valamint…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 2 | ||||
“Kik vagyunk?” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 2 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 23 | 2 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 24 | Hanganov KFTIndirect evidence | 2 | |||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 | ||||
“Information has become the most valuable intelectual property for all organisations.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 80 IT security consulting firms based in Hungary
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 216 reachable decision-makers.
Free signup · no credit card
IT security consulting firms based in Hungary at a glance
As of Sep 4, 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 IT 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 Hungary whose own description of what they do matches “IT 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 IT security consulting firms, and records with no verified work email. Companies headquartered outside Hungary 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, 216 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 4, 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.
IT security consulting firms by metro
- IT security consulting firms in Budapest32
Frequently asked
How many IT security consulting firms are there based in Hungary?
RevenueBase identified 80 IT security consulting firms headquartered in Hungary 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?
Black Cell, headquartered in Budapest, tops this list with the largest team on record.
Which city has the most IT security consulting firms?
Budapest leads with 32 headquartered companies, followed by Szentendre (2) and Albertirsa (1).
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 216 verified decision-maker contacts tracked across these 80 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 4, 2026.
Ready to reach these companies? Verified emails and direct dials for all 80 IT security consulting firms based in Hungary. Start with a free account, no credit card.
Get the full listRelated lists
IT security consulting firms by geography
- IT security consulting firms based in the United States
- IT security consulting firms based in the United Kingdom
- IT security consulting firms based in Brazil
- IT security consulting firms based in France
- IT security consulting firms based in Canada
- IT security consulting firms based in Germany
- IT security consulting firms based in Australia
- IT security consulting firms based in the Netherlands
- IT security consulting firms based in Italy
- IT security consulting firms based in Spain
- IT security consulting firms based in Mexico
- IT security consulting firms based in Switzerland
Browse the directory
Browse: Companies home · All Hungary lists · All IT security consulting firms lists · New lists
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- IT security consulting firms based in the United States
- IT security consulting firms based in the United Kingdom
- IT security consulting firms based in Brazil
- IT security consulting firms based in France
- IT security consulting firms based in Canada
- IT security consulting firms based in Germany