Company lists · Data refreshed September 2026

Top 25 Defense cybersecurity companies based in Austria

Name: Defense cybersecurity companies based in Austria
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 42 companies tracked

RevenueBase identified 42 defense cybersecurity companies headquartered in Austria as of September 2026 and tracks 424 professional contacts across them, including 118 with verified work emails and 9 with mobile numbers. Wien is the largest hub.

This list covers defense cybersecurity companies headquartered in Austria, 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

42Companies

424Contacts tracked

118Verified emails

9Mobile numbers

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The 25 largest defense cybersecurity companies based in Austria

Ranked by team size

Top 25 of 42 defense cybersecurity companies based in Austria, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to defense 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	Creaplus	Partial evidence	Austria	51-200	53 contacts →
	Partial evidence “CREAPLUS is a cybersecurity and sovereign AI company providing value-added distribution, consulting, and technology integration across Europe.” Source: RevenueBase Database · checked Sep 1, 2026
2	Certitude Consulting Gmbh	Indirect evidence	Wien, Austria	11-50	25 contacts →
	Indirect evidence “Certitude ist ein Beratungsunternehmen mit Spezialisierung auf Informationssicherheit und Cyber Security.” Source: RevenueBase Database · checked Sep 1, 2026
3	Microcat Gmbh	Indirect evidence	Gmunden, Austria	51-200	25 contacts →
	Indirect evidence “microCAT ist ein führender Full-Service-Provider für IT-Produkte und -Dienstleistungen mit einem klaren Fokus auf IT-Security.” Source: RevenueBase Database · checked Sep 1, 2026
4	Certainity	Indirect evidence	Vienna, Austria	11-50	18 contacts →
	Indirect evidence “As Cyber Security Specialists, we support our customers to sustainably improve their information security and to secure their core business.” Source: RevenueBase Database · checked Sep 1, 2026
5	Snapsec Gmbh	Partial evidence	Vorchdorf, Austria	1-10	13 contacts →
	Partial evidence “Cybersecurity-Assessments Managed IT-Security snapSEC Academy Cyber-Resilienz Datenschutz DSG / DSGVO Incident Response” Source: RevenueBase Database · checked Sep 1, 2026
6	Tcss Trusted Cyber Security Solutions Gmbh	Indirect evidence	Austria	11-50	10 contacts →
	Indirect evidence “Public institutions and large companies are increasingly exposed to cybercrime attacks.” Source: RevenueBase Database · checked Sep 1, 2026
7	R4c	Indirect evidence	Wien, Austria	1-10	9 contacts →
	Indirect evidence “R4C ist ein etabliertes IT-Sicherheitsunternehmen, spezialisiert auf E-Mail Security, Awareness Trainings, Data Security, API Security, Network Security, DDoS-Protection, MDR &…” Source: RevenueBase Database · checked Sep 1, 2026
8	Cyriso Cyber Risk Solutions	Indirect evidence	Austria	1-10	8 contacts →
	Indirect evidence “Cyber Security and Cyber Compliance risk-oriented, digitalized, effective - and tailored to the framework conditions of your medium-sized company!” Source: RevenueBase Database · checked Sep 1, 2026
9	Servionix Group	Partial evidence	Vienna, Austria	11-50	8 contacts →
	Partial evidence “Servionix is a leading cybersecurity provider, partnering with top developers to deliver advanced solutions in information security.” Source: RevenueBase Database · checked Sep 1, 2026
10	Agentur Cyberschutz	Indirect evidence	Traiskirchen, Austria	11-50	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 1, 2026
11	Slashsec RED Teaming Gmbh	Indirect evidence	Wien, Austria	1-10	6 contacts →
	Indirect evidence “slashsec, gegründet 2021 in der pulsierenden Hauptstadt Österreichs, verbindet als unabhängiger Cyber-Security-Dienstleister Innovation mit einem klaren Fokus.” Source: RevenueBase Database · checked Sep 1, 2026
12	Solbytech Gmbh	Indirect evidence	Zederhaus, Austria	1-10	5 contacts →
	Indirect evidence “Cyber Security Analytics - Zertifiziertes IT-Know-How aus Salzburg zum Schutz Ihrer Daten und digitalen Infrastruktur.” Source: RevenueBase Database · checked Sep 1, 2026
13	Codesec	Indirect evidence	Eberstalzell, Austria	1-10	4 contacts →
	Indirect evidence “Professionelle Sicherheits- und IT-Lösungen für Ihr Unternehmen aus Oberösterreich.” Source: RevenueBase Database · checked Sep 1, 2026
14	Inibit Gmbh	Indirect evidence	St. Polten, Austria	1-10	4 contacts →
	Indirect evidence “Gründungsleitbild Die iniBit Gmbh ist aufgrund der steigenden Sicherheitsanforderungen in der Informationstechnologie der heutigen Gesellschaft entstanden.” Source: RevenueBase Database · checked Sep 1, 2026
15	Cyberlutz Gmbh	Indirect evidence	Graz, Austria	1-10	3 contacts →
	Indirect evidence “Wir entwickeln Sicherheitsstrukturen, die nicht nur auf dem Papier bestehen, sondern im operativen Alltag verlässlich funktionieren.” Source: RevenueBase Database · checked Sep 1, 2026
16	Zettasecure	Partial evidence	Wien, Austria	1-10	2 contacts →
	Partial evidence “Smart Cybersecurity for Smart Businesses.” Source: RevenueBase Database · checked Sep 1, 2026
17	C3 IT Gmbh	Indirect evidence	Boheimkirchen, Austria	1-10	2 contacts →
	Indirect evidence “Erhöhung der IT-Sicherheit in Ihrem Unternehmen durch - IT-Sicherheitsberatung - Betreuung von IT-Sicherheitskomponenten - Umsetzung von IT-Sicherheitsprojekten” Source: RevenueBase Database · checked Sep 1, 2026
18	CYBS	Indirect evidence	Lustenau, Austria	1-10	2 contacts →
	Indirect evidence “CYBS ist ein Unternehmen im Bereich Cybersicherheit, das sich darauf spezialisiert hat, Unternehmen vor den Gefahren und Bedrohungen der digitalen Welt zu schützen.” Source: RevenueBase Database · checked Sep 1, 2026
19	Hergusec Cyber Security Gmbh	Indirect evidence	Brunn Am Gebirge, Austria	1-10	2 contacts →
	Indirect evidence “IT-Security Consulting” Source: RevenueBase Database · checked Sep 1, 2026
20	IT Solutions & Webspider IT Sicherheitsentwicklung	Indirect evidence	Salzburg, Austria	1-10	1 contacts →
	Indirect evidence “it solutions und webspider Gmbh in Salzburg, Austria.” Source: RevenueBase Database · checked Sep 1, 2026
21	Vidrasec	Indirect evidence	Aigen-Schlagl, Austria	1-10	1 contacts →
	Indirect evidence “VidraSec helps companies by conducting to identify vulnerabilities and recommend effective mitigations they can be exploited by an attacker Penetration Testing \| Cyber Attack…” Source: RevenueBase Database · checked Sep 1, 2026
22	Nullfaktor Gmbh	Indirect evidence	Vienna, Austria	1-10	1 contacts →
	Indirect evidence “Ihr Spezialist für IT- & SAP-Cyber-Security: Penetrationstests, Cyber-Abwehr & Beratung – unsere Experten verfügen über 35 Jahre Erfahrung in Industrie, Finanzwesen & Behörden.” Source: RevenueBase Database · checked Sep 1, 2026
23	Rostech Gmbh	Partial evidence	Innsbruck, Austria	1-10	1 contacts →
	Partial evidence “A premier IT security consulting firm specializing in comprehensive cybersecurity solutions for modern enterprises.” Source: RevenueBase Database · checked Sep 1, 2026
24	Cyber Security & Defence Intelligence	Indirect evidence	Graz, Austria	1-10	1 contacts →
	Indirect evidence “At CSDINT, we work with an ecosystem of Vendors and partners to ensure that you get the most value from your Investments.” Source: RevenueBase Database · checked Sep 1, 2026
25	Arctaros Gmbh	Indirect evidence	Graz, Austria	1-10	1 contacts →
	Indirect evidence “ARCTAROS - Making IT secure.” Source: RevenueBase Database · checked Sep 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: defense 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 defense cybersecurity companies.
Partial evidence: Its own public description names part of defense cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense 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 42 defense cybersecurity companies based in Austria

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Defense cybersecurity companies based in Austria at a glance

As of Sep 1, 2026

27.8%Verified-email coverage

2.1%Mobile-number coverage

10.1Average contacts per company

1-10Median size (employees)

19.0%Largest-city concentration · Wien

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 defense 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 Austria whose own description of what they do matches “defense 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 defense 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 defense cybersecurity companies, and records with no verified work email. Companies headquartered outside Austria 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, 118 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 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.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its 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 the category the list is about. Each row is rated strong evidence when the company's own description names defense cybersecurity companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many defense cybersecurity companies are there based in Austria?

RevenueBase identified 42 defense cybersecurity companies headquartered in Austria 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?

Creaplus, headquartered in Austria, tops this list with the largest team on record.

Which city has the most defense cybersecurity companies?

Wien leads with 8 headquartered companies, followed by Vienna (6) and Graz (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 118 verified decision-maker contacts tracked across these 42 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 1, 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 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.