Company lists · Data refreshed September 2026

Top 25 Defense cybersecurity companies based in Poland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 85 companies tracked

RevenueBase identified 85 defense cybersecurity companies headquartered in Poland as of September 2026 and tracks 2,489 professional contacts across them, including 808 with verified work emails and 116 with mobile numbers. Warszawa is the largest hub.

This list covers defense cybersecurity companies headquartered in Poland, 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

85Companies

2,489Contacts tracked

808Verified emails

116Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest defense cybersecurity companies based in Poland

Ranked by team size

Top 25 of 85 defense cybersecurity companies based in Poland, 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	Irdeto	Partial evidence	Wroclaw, Poland	1,001-5,000	1,062 contacts →
	Partial evidence “Irdeto is the world leader in digital platform cybersecurity, empowering businesses to innovate for a secure, connected future.” Source: RevenueBase Database · checked Sep 1, 2026
2	Enigma SOI Sp. Z O.O	Indirect evidence	Warszawa, Poland	201-500	192 contacts →
	Indirect evidence “Enigma Systemy Ochrony Informacji (Enigma Information Security Systems) was founded in 1993 on the initiative of workers and graduates of Warsaw University of Technology…” Source: RevenueBase Database · checked Sep 1, 2026
3	OBR CTM SA	Indirect evidence	Gdynia, Poland	201-500	133 contacts →
	Indirect evidence “OBR CTM has been providing technology for the Polish Navy and Armed Forces since 1982.” Source: RevenueBase Database · checked Sep 1, 2026
4	ISSP	Partial evidence	Wroclaw, Poland	51-200	80 contacts →
	Partial evidence “ISSP is a group of companies, specialized in cybersecurity and data management solutions, managed security services, state of the art professional training, and cutting-edge…” Source: RevenueBase Database · checked Sep 1, 2026
5	Teldat Sp. Z O.O.Sp.K	Partial evidence	Bydgoszcz, Poland	51-200	73 contacts →
	Partial evidence “TELDAT is the only Polish business entity that has effectively and dynamically operated for 26 years on the defence IT market.” Source: RevenueBase Database · checked Sep 1, 2026
6	MCX Group	Partial evidence	Warszawa, Poland	51-200	56 contacts →
	Partial evidence “We are specialists who integrate with passion the areas of engineering, telecommunications and cybersecurity, payments and software development.” Source: RevenueBase Database · checked Sep 1, 2026
7	STM Cyber	Indirect evidence	Warsaw, Poland	51-200	45 contacts →
	Indirect evidence “Offensive Intelligence.” Source: RevenueBase Database · checked Sep 1, 2026
8	Decent Cybersecurity	Partial evidence	Lublin, Poland	11-50	40 contacts →
	Partial evidence “Piestany - Bratislava - Prague - Karlovy Vary - Warsaw - Lublin - Dublin - Vienna - Swansea - London and more Decent Cybersecurity builds upon a track record of early post-quantum…” Source: RevenueBase Database · checked Sep 1, 2026
9	4prime IT Security	Partial evidence	Warszawa, Poland	51-200	32 contacts →
	Partial evidence “4Prime IT Security is a specialized team of cybersecurity experts with over 15 years of experience.” Source: RevenueBase Database · checked Sep 1, 2026
10	Polski Holding Obronny Sp. Z O.O	Indirect evidence	Wola, Poland	501-1,000	32 contacts →
	Indirect evidence “Polski Holding Obronny to podmiot który do 2013 roku (pod marką Bumar) przez blisko 45 lat prowadził działalność związaną z obrotem specjalnym, eksportem uzbrojenia i dużą…” Source: RevenueBase Database · checked Sep 1, 2026
11	Perceptus	Indirect evidence	Zielona Gora, Poland	11-50	30 contacts →
	Indirect evidence “The main aspiration of Perceptus is that our customers reach the highest effectiveness of data security systems in order to maximise their business goals.” Source: RevenueBase Database · checked Sep 1, 2026
12	Soc360 Cybersecurity	Indirect evidence	Warszawa, Poland	11-50	26 contacts →
	Indirect evidence “We take care of your company's cyber security so you can focus on your business.” Source: RevenueBase Database · checked Sep 1, 2026
13	Cyber360	Indirect evidence	Warszawa, Poland	11-50	17 contacts →
	Indirect evidence “Świadczymy usługi profesjonalne w zakresie #cyberbezpieczeństwa 🥷🧑 Wyróżnia nas kompleksowe podejście do tematyki, obejmujące doradztwo, szkolenia, wdrożenia narzędzi…” Source: RevenueBase Database · checked Sep 1, 2026
14	Seqred	Partial evidence	Warszawa, Poland	11-50	17 contacts →
	Partial evidence “Seqred is a cybersecurity services provider with focus on IoT and ICS domains.” Source: RevenueBase Database · checked Sep 1, 2026
15	Inseqr	Indirect evidence	Warszawa, Poland	11-50	15 contacts →
	Indirect evidence “Inseqr offers modern, innovative solutions in the field of widely understood security.” Source: RevenueBase Database · checked Sep 1, 2026
16	Smartech IT	Indirect evidence	Bielany Wroclawskie, Poland	11-50	15 contacts →
	Indirect evidence “At SmarTech IT, we bring together a team of seasoned experts passionate about delivering innovative IT services and solutions.” Source: RevenueBase Database · checked Sep 1, 2026
17	Crossword Cybersecurity PLC	Partial evidence	Krakow, Poland	51-200	14 contacts →
	Partial evidence “Our goal is to help you reduce cybersecurity risk within your organisation, without adding complexity.” Source: RevenueBase Database · checked Sep 1, 2026
18	Aegis Security	Indirect evidence	Warszawa, Poland	11-50	13 contacts →
	Indirect evidence “Jesteśmy grupą specjalistów działających na rynku bezpieczeństwa informacji od wielu lat.” Source: RevenueBase Database · checked Sep 1, 2026
19	Eurosoc	Indirect evidence	Gdynia, Poland	11-50	13 contacts →
	Indirect evidence “Eurosoc – eksperci Red & Blue Team, którzy naprawdę czuwają nad Twoim bezpieczeństwem Zajmujemy się cyberbezpieczeństwem w praktyce.” Source: RevenueBase Database · checked Sep 1, 2026
20	Sagenso	Indirect evidence	Rzeszow, Poland	11-50	12 contacts →
	Indirect evidence “Sagenso is all you need to make your company's data and IT infrastructure cybersecure.” Source: RevenueBase Database · checked Sep 1, 2026
21	bulletprove.com	Indirect evidence	Pulawy, Poland	11-50	10 contacts →
	Indirect evidence “BulletProve Sp.” Source: RevenueBase Database · checked Sep 1, 2026
22	Allnet Group	Indirect evidence	Miedzyrzec Podlaski, Poland	11-50	9 contacts →
	Indirect evidence “Jako firma technologiczna, koncentrujemy nasze działania na dostarczaniu kompleksowych usług w obszarze cyberbezpieczeństwa oraz wdrażaniu i zarządzaniu usługami chmurowymi.” Source: RevenueBase Database · checked Sep 1, 2026
23	Matic SA	Indirect evidence	Warszawa, Poland	11-50	7 contacts →
	Indirect evidence “Od 30 lat w Matic wierzymy, że innowacja technologiczna jest bezpośrednią przyczyną zdobywania przewagi konkurencyjnej przedsiębiorstw i podnoszenia efektywności działania Państwa.” Source: RevenueBase Database · checked Sep 1, 2026
24	Diskus Polska	Partial evidence	Wieliczka, Poland	11-50	6 contacts →
	Partial evidence “DISKUS Polska to ekspert w dziedzinie cybersecurity, który od lat tworzy nowoczesne technologie oraz świadczy usługi chroniące kluczowe zasoby informacyjne organizacji.” Source: RevenueBase Database · checked Sep 1, 2026
25	Patronusec	Indirect evidence	Poznan, Poland	11-50	6 contacts →
	Indirect evidence “PATRONUSEC \| Your Cyber Security Patronus.” 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 85 defense cybersecurity companies based in Poland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 808 reachable decision-makers.

Free signup · no credit card

View the full list →

Defense cybersecurity companies based in Poland at a glance

As of Sep 1, 2026

32.5%Verified-email coverage

4.7%Mobile-number coverage

29.3Average contacts per company

11-50Median size (employees)

32.9%Largest-city concentration · Warszawa

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 Poland 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 Poland 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, 808 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.

Defense cybersecurity companies by metro

Defense cybersecurity companies in Warszawa28

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 Poland?

RevenueBase identified 85 defense cybersecurity companies headquartered in Poland 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?

Irdeto, headquartered in Wroclaw, tops this list with the largest team on record.

Which city has the most defense cybersecurity companies?

Warszawa leads with 28 headquartered companies, followed by Warsaw (6) and Krakow (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 808 verified decision-maker contacts tracked across these 85 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.

Ready to reach these companies? Verified emails and direct dials for all 85 defense cybersecurity companies based in Poland. Start with a free account, no credit card.

Download this list →

Related lists

Defense cybersecurity companies by geography

Browse the directory

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.