Company lists · Data refreshed September 2026
Top 22 IT services companies based in Poland
RevenueBase identified 939 IT services companies headquartered in Poland as of September 2026 and tracks 18,983 professional contacts across them, including 8,098 with verified work emails and 214 with mobile numbers. Warszawa is the largest hub.
This list covers IT services 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, 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 22 largest IT services companies based in Poland
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,538 | ||||
“With over 7 500 Power People, Sii is Poland’s #1 partner for technology consulting, AI-driven digital transformation, engineering, and business services, empowering companies to…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 2 | 533 | ||||
“Asseco Data Systems provide products, services and IT solutions based on proprietary and third-party software as well as on the information and communications services and…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 3 | Transition Technologies MSStrong evidence | 478 | |||
“TTMS is a fast-growing IT company with a global presence.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 4 | 445 | ||||
“NATEK specializes in designing and implementing IT business solutions to support our partners in the digital transformation of their companies.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 5 | 335 | ||||
“We are one of the fastest-growing technology companies in the Polish market, delivering modern IT solutions that shape the digital growth of organizations from many industries…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 6 | 284 | ||||
Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 7 | Astek PolskaStrong evidence | 236 | |||
“We are a leading provider of IT services and consulting.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 8 | 219 | ||||
“itWORKS is an IT company which addresses its offer to IT and business departments.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 9 | 204 | ||||
“SOFTIQ is driven by a combination of experience, knowledge, cutting edge technologies and.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 10 | 197 | ||||
“ITMAGINATION is now operating as Virtusa, bringing together ITMAGINATION’s strong regional expertise with Virtusa’s global engineering scale and digital transformation…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 11 | 190 | ||||
“iteo is an international IT consulting company founded in Poland, dedicated to delivering digital products and experiences at scale.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 12 | 182 | ||||
“Od 1991 roku współtworzymy rynek technologiczny w Polsce i Europie.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 13 | 158 | ||||
“Pretius is a software development company that specializes in crafting custom software solutions and delivering tangible business value.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 14 | 153 | ||||
“Jesteśmy zespołem ekspertów specjalizującym się w projektowaniu, wdrażaniu oraz zarządzaniu zaawansowanych technicznie rozwiązań IT.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 15 | 139 | ||||
“Our goal is to build a solid and respectable company offering comprehensive services and IT products.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 16 | 136 | ||||
“As thyssenkrupp Group Services Gdańsk, we are all driven by the same ambition: to be the first-choice provider of business and IT services, enabling our customers to focus on…” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 17 | 127 | ||||
“Kotrak is an IT company with 30 years of experience in business software implementation.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 18 | 124 | ||||
“Talex is an advanced IT system integrator specializing in software production, complex integration services and outsourcing services based on its state-of-the-art data center.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 19 | 116 | ||||
“Apreel was established in April 2010 by four friends whose dream was to create their own software house.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 20 | 90 | ||||
“IT Solution Factor to polska spółka informatyczna założona w 2017 roku.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 21 | 87 | ||||
“INFOVER to zespół specjalistów IT z wieloletnim doświadczeniem w tworzeniu rozwiązań informatycznych od podstaw.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
| 22 | 86 | ||||
“At ista IT Technologies, located in the heart of Gliwice, we are more than just a technology company.” Source: company website · checked Sep 4, 2026Thanks. The Data Team will review it. | |||||
Showing 22 of 939 IT services companies based in Poland
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IT services companies based in Poland 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 services companies, 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 Poland whose own description of what they do matches “IT services companies”. 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 services 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 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, 8,098 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.
Frequently asked
How many IT services companies are there based in Poland?
RevenueBase identified 939 IT services 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?
SII Poland, headquartered in Bydgoszcz, tops this list with the largest team on record.
Which city has the most IT services companies?
Warszawa leads with 175 headquartered companies, followed by Warsaw (107) and Wroclaw (61).
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 8,098 verified decision-maker contacts tracked across these 939 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.
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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 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.
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