Company lists · Data refreshed September 2026
Top 25 Secure software development firms based in Warsaw, Poland
RevenueBase identified 71 secure software development firms headquartered in Warsaw, Poland as of September 2026 and tracks 1,484 professional contacts across them, including 681 with verified work emails. Across Poland, Warsaw is the largest hub for this category.
This list covers secure software development firms headquartered in Warsaw, 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 29, 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.
The 25 largest secure software development firms based in Warsaw, Poland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 279 contacts → | ||||
Strong evidence “12+ years of custom software development centered on client satisfaction.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 191 contacts → | ||||
Partial 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 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 154 contacts → | ||||
Indirect evidence “Jesteśmy zespołem ekspertów specjalizującym się w projektowaniu, wdrażaniu oraz zarządzaniu zaawansowanych technicznie rozwiązań IT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 119 contacts → | ||||
Indirect evidence “Integrity Partners is the first company on the market to combine deep expertise in the two most dynamic areas of technology, Cybersecurity and Cloud.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 77 contacts → | ||||
Indirect evidence “We have proven many times that the project implemented by our team requires less time and significantly less investment compared to the competition.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 70 contacts → | ||||
Strong evidence “NerdySoft is a software development and consulting agency proudly established and run by a team of fintech nerds.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 52 contacts → | ||||
Strong evidence “LLInformatics is a software consulting and development firm that builds customized, compliant, intelligent digital solutions and products, and conducts technical audits and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 45 contacts → | ||||
Indirect evidence “Offensive Intelligence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 42 contacts → | ||||
Indirect evidence “Jesteśmy dostawcą nowoczesnych usług IT, wspierającym organizacje w budowie bezpiecznych, skalowalnych i efektywnych środowisk technologicznych.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 37 contacts → | ||||
Partial evidence “DYNEVO GROUP is a reputable IT solutions provider that enhances the efficiency, productivity, and security of your business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 27 contacts → | ||||
Indirect evidence “Od blisko 20 lat pomagamy firmom budować odporne środowiska IT/OT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 18 contacts → | ||||
Strong evidence “Symmetry is a digital transformation, IT integration and software development company that delivers cutting- edge solutions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Indirect evidence “AFINE is a trusted advisor in cybersecurity and penetration testing, serving leading organizations since 2015.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 16 contacts → | ||||
Partial evidence “DEVTALENTS brings together the most knowledgeable and experienced software developers from around the world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 contacts → | ||||
Indirect evidence “SNOK to miejsce, gdzie technologia enterprise przestaje być problemem, a zaczyna być przewagą.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 15 contacts → | ||||
Indirect evidence “About us Analysts, architects, programmers, testers, graphic designers and project managers all work for our customers' success.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 15 contacts → | ||||
Indirect evidence “nFlo to zespół ludzi doświadczonych w prowadzeniu złożonych projektów i zarządzaniu procesami biznesowymi oraz IT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 15 contacts → | ||||
Partial evidence “Inseqr offers modern, innovative solutions in the field of widely understood security.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 13 contacts → | ||||
Indirect evidence “Jesteśmy grupą specjalistów działających na rynku bezpieczeństwa informacji od wielu lat.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 11 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 10 contacts → | ||||
Indirect evidence “Jesteśmy warszawską firmą od kilkunastu lat specjalizującą się w outsourcingu IT.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 29, 2026Thanks. The Data Team will review it. | |||||
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: secure software development firms. 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 secure software development firms.
- Partial evidence
- Its own public description names part of secure software development firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name secure software development firms. 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 71 secure software development firms based in Warsaw, Poland
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Secure software development firms based in Warsaw, Poland at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured across the whole Poland list rather than for Warsaw, so it is reported there. Company counts and contact totals on this page are exact for Warsaw.
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 secure software development firms, 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 Warsaw, Poland whose own description of what they do matches “secure software development firms”. 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 secure software development firms), 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 secure software development firms, and records with no verified work email. Companies headquartered outside Warsaw 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, 681 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 29, 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 secure software development firms, 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 secure software development firms are there based in Warsaw, Poland?
RevenueBase identified 71 secure software development firms headquartered in Warsaw, 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?
The Software House, headquartered in Warsaw, tops this list with the largest team on record.
Which city in Poland has the most secure software development firms?
Warsaw leads Poland with 71 headquartered companies, followed by Wroclaw (18) and Poznan (13).
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 681 verified decision-maker contacts tracked across these 71 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 29, 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.
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