Company lists · Data refreshed September 2026

Top 25 Cybersecurity startups based in Poland

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

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 145 companies tracked

RevenueBase identified 145 cybersecurity startups headquartered in Poland as of September 2026 and tracks 2,389 professional contacts across them, including 1,000 with verified work emails and 128 with mobile numbers. Warszawa is the largest hub.

This list covers cybersecurity startups 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

145Companies

2,389Contacts tracked

1,000Verified emails

128Mobile numbers

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The 25 largest cybersecurity startups based in Poland

Ranked by team size

Top 25 of 145 cybersecurity startups 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 cybersecurity startups: 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	DAGMA	Indirect evidence	Katowice, Poland	201-500	192 contacts →
	Indirect evidence “DAGMA Bezpieczeństwo IT to firma z niemal 40-letnim doświadczeniem, specjalizująca się w cyberbezpieczeństwie.” Source: RevenueBase Database · checked Sep 1, 2026
3	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
4	STM Cyber	Indirect evidence	Warsaw, Poland	51-200	45 contacts →
	Indirect evidence “Offensive Intelligence.” Source: RevenueBase Database · checked Sep 1, 2026
5	Securevisio	Indirect evidence	Rzeszow, Poland	51-200	40 contacts →
	Indirect evidence “SecureVisio is a fully automated platform for security operations, risks, vulnerabilities, compliance and data protection management.” Source: RevenueBase Database · checked Sep 1, 2026
6	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
7	IMA Schelling Polska Automation Sp. Z O.O	Indirect evidence	Ruda, Poland	51-200	36 contacts →
	Indirect evidence “We create effective and innovative worldwide technology solutions for your business, guaranteeing the security and complexity of our products and services.” Source: RevenueBase Database · checked Sep 1, 2026
8	Sedivio	Indirect evidence	Warszawa, Poland	51-200	35 contacts →
	Indirect evidence “SEDIVIO has been in existence since 2012 (previously under the name EC2), but it was the pivotal period between July and August 2017 that shaped the company into what it is today.” 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	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
11	ICSEC	Partial evidence	Warszawa, Poland	11-50	28 contacts →
	Partial evidence “ICsec offers cybersecurity solutions dedicated to industrial networks.” Source: RevenueBase Database · checked Sep 1, 2026
12	Softinet	Indirect evidence	Warszawa, Poland	11-50	27 contacts →
	Indirect evidence “Od blisko 20 lat pomagamy firmom budować odporne środowiska IT/OT.” Source: RevenueBase Database · checked Sep 1, 2026
13	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
14	Comcert SA	Indirect evidence	Warszawa, Poland	11-50	23 contacts →
	Indirect evidence “ComCERT SA, jedyna w Polsce, specjalizuje się w oferowaniu pomocy dla Administratorów IT/zespołów bezpieczeństwa w czasie i po ataku cyberprzestępczym (tzw.” Source: RevenueBase Database · checked Sep 1, 2026
15	Ikaria IT Security Experts	Indirect evidence	Lodz, Poland	11-50	23 contacts →
	Indirect evidence “Ikaria to ekspert bezpieczeństwa IT.” Source: RevenueBase Database · checked Sep 1, 2026
16	Doyensec	Indirect evidence	Warsaw, Poland	11-50	22 contacts →
	Indirect evidence “Doyensec is an independent security research and development company focused on vulnerability discovery and remediation.” Source: RevenueBase Database · checked Sep 1, 2026
17	Cdex Cyber Defence Exercise Platform	Partial evidence	Poznan, Poland	11-50	20 contacts →
	Partial evidence “CDeX is a technologically advanced cyber range that supports organizations in developing and hiring the best cybersecurity professionals” Source: RevenueBase Database · checked Sep 1, 2026
18	Sisoft	Partial evidence	Krakow, Poland	11-50	20 contacts →
	Partial evidence “SISOFT supports businesses and institutions in making better decisions around cybersecurity, compliance, and business continuity, in a world where technology evolves faster than…” Source: RevenueBase Database · checked Sep 1, 2026
19	AFINE	Partial evidence	Warszawa, Poland	11-50	19 contacts →
	Partial evidence “AFINE is a trusted advisor in cybersecurity and penetration testing, serving leading organizations since 2015.” Source: RevenueBase Database · checked Sep 1, 2026
20	Hakon Software	Indirect evidence	Gdansk, Poland	11-50	19 contacts →
	Indirect evidence “Jesteśmy dynamicznie rozwijająca się firma informatyczną, specjalizującą się w dostarczaniu kompleksowych rozwiązań IT.” Source: RevenueBase Database · checked Sep 1, 2026
21	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
22	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
23	Eset Polska	Indirect evidence	Krakow, Poland	51-200	16 contacts →
	Indirect evidence “Gdy technologia napędza postęp, ESET stoi na straży jego bezpieczeństwa.” Source: RevenueBase Database · checked Sep 1, 2026
24	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
25	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

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 startups. 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 startups.
Partial evidence: Its own public description names part of cybersecurity startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity startups. 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 145 cybersecurity startups based in Poland

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Cybersecurity startups based in Poland at a glance

As of Sep 1, 2026

41.9%Verified-email coverage

5.4%Mobile-number coverage

16.5Average contacts per company

11-50Median size (employees)

26.2%Largest-city concentration · Warszawa

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 cybersecurity startups, 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 “cybersecurity startups”. 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 startups), 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 startups, 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, 1,000 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.

Cybersecurity startups by metro

Cybersecurity startups in Warszawa38

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 cybersecurity startups, 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 cybersecurity startups are there based in Poland?

RevenueBase identified 145 cybersecurity startups 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 cybersecurity startups?

Warszawa leads with 38 headquartered companies, followed by Warsaw (18) and Krakow (11).

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 1,000 verified decision-maker contacts tracked across these 145 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.