Company lists · Data refreshed September 2026

Top 25 Infrastructure outsourcing companies based in Poland

RevenueBase identified 214 infrastructure outsourcing companies headquartered in Poland as of September 2026 and tracks 3,814 professional contacts across them, including 2,103 with verified work emails. Warszawa is the largest hub.

This list covers infrastructure outsourcing 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 28, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
214Companies
3,814Contacts tracked
2,103Verified emails
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The 25 largest infrastructure outsourcing companies based in Poland

Ranked by team size
Top 25 of 214 infrastructure outsourcing companies based in Poland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure outsourcing 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWarsaw, PolandHQ checked Sep 28, 20261,001-5,0001,290 contacts →

Partial evidence

“Billennium is a global technology consulting and outsourcing services company that provides top-quality IT solutions for enterprises.”

Source: RevenueBase Database · checked Sep 28, 2026
2Indirect evidenceWarsaw, PolandHQ checked Sep 28, 2026501-1,000335 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceKatowice, PolandHQ checked Sep 28, 2026501-1,000286 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202651-200183 contacts →

Indirect evidence

“Od 1991 roku współtworzymy rynek technologiczny w Polsce i Europie.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceZłotniki, PolandHQ checked Sep 28, 202611-5097 contacts →

Partial evidence

“We specialise in IT outsourcing for medium and large companies located across Poland.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceWrocław, PolandHQ checked Sep 28, 2026201-50092 contacts →

Indirect evidence

“Inter Prompt Global (IP Global) is a trusted IT services provider headquartered in Wroclaw, Poland, with offices in the UK, US, UAE, India, and Pakistan.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceŚródmieście, PolandHQ checked Sep 28, 202651-20086 contacts →

Indirect evidence

“At ista IT Technologies, located in the heart of Gliwice, we are more than just a technology company.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceKrakow, PolandHQ checked Sep 28, 202651-20083 contacts →

Indirect evidence

“We provide IT Services and Consulting for Enterprise Clients.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceWarszawa, PolandHQ checked Sep 28, 202611-5069 contacts →

Indirect evidence

“Lizard to polska firma technologiczna, która od ponad 25 lat wspiera przedsiębiorstwa w budowaniu bezpiecznego, nowoczesnego i efektywnego środowiska IT.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidenceŻywiec, PolandHQ checked Sep 28, 202651-20069 contacts →

Indirect evidence

“Pomagamy naszym klientom rozwijać prowadzoną działalność dzięki nowoczesnym i sprawdzonym technologiom z dziedziny Data Center i chmury obliczeniowej, oprogramowania biznesowego…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceWarszawa, PolandHQ checked Sep 28, 202651-20052 contacts →

Indirect evidence

“Programujemy pomysły Kierujemy się prostymi zasadami, dzięki którym proponujemy naszym klientom efektywniejsze rozwiązania, postępujemy zgodnie z własnymi przekonaniami i uczciwie…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceŁódź, PolandHQ checked Sep 28, 202611-5045 contacts →

Indirect evidence

“KIM JESTEŚMY?”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5041 contacts →

Partial evidence

“Jesteśmy firmą IT zajmującą się outsourcingiem usług.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceWarszawa, PolandHQ checked Sep 28, 202651-20036 contacts →

Partial evidence

“Itelence is a fast-growing IT outsourcing and BPO company, helping global businesses scale with top tech talent from Poland and Eastern Europe.”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceGdynia, PolandHQ checked Sep 28, 202611-5032 contacts →

Partial evidence

“IT infrastructure supplier and outsourcer.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202611-5025 contacts →

Indirect evidence

“We are a dynamic and rapidly growing company that has been in the IT market since 2011.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceWarszawa, PolandHQ checked Sep 28, 202611-5022 contacts →

Partial evidence

“IT Outsourcing, systems management, business systems deployment,"green field" IT services projects, IT security projects, IS Audits and Consulting.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceWarszawa, PolandHQ checked Sep 28, 202611-5022 contacts →

Indirect evidence

“Jesteśmy zespołem doświadczonych specjalistów IT, którzy kompleksowo przejmują odpowiedzialność za technologię w firmach - od infrastruktury, przez bezpieczeństwo, po codzienne…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceWarszawa, PolandHQ checked Sep 28, 202651-20021 contacts →

Indirect evidence

“We are a fast-growing IT company founded by people who believe in building long-term relationships with clients and employees.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceGdansk, PolandHQ checked Sep 28, 202651-20020 contacts →

Indirect evidence

“We are a modern IT services company.”

Source: RevenueBase Database · checked Sep 28, 2026
21Indirect evidenceGdańsk, PolandHQ checked Sep 28, 202611-5020 contacts →

Indirect evidence

“Od ponad 25 lat zajmujemy się realizacją usług IT dla biznesu, dostarczając nowoczesne i zaawansowane rozwiązania, które wspierają konkurencyjność firm.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceGdańsk, PolandHQ checked Sep 28, 202611-5020 contacts →

Indirect evidence

“Jesteśmy dynamicznie rozwijająca się firma informatyczną, specjalizującą się w dostarczaniu kompleksowych rozwiązań IT.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceSwarzędz, PolandHQ checked Sep 28, 202611-5018 contacts →

Indirect evidence

“Soft Group was created to deliver high quality it services.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceŁódź, PolandHQ checked Sep 28, 202611-5015 contacts →

Partial evidence

“Qlos is a team of experienced Administrators whose main focus is on improving your IT infrastructure.”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidencePoznań, PolandHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“Symbioza.IT to firma informatyczna z ponad 25-letnim doświadczeniem, która działa jako partner IT dla firm z różnych sektorów.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 214 infrastructure outsourcing companies based in Poland

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Infrastructure outsourcing companies based in Poland at a glance

As of Sep 28, 2026
55.1%Verified-email coverage
17.8Average contacts per company
1-10Median size (employees)
18.7%Largest-city concentration · Warszawa
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
115
11-50
76
51-200
14
201-500
2
501-1,000
2
1,001-5,000
4

Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 214 companies.

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 infrastructure outsourcing 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 “infrastructure outsourcing 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 infrastructure outsourcing 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 infrastructure outsourcing 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, 2,103 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 28, 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.

Infrastructure outsourcing companies by metro

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 infrastructure outsourcing 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 infrastructure outsourcing companies are there based in Poland?

RevenueBase identified 214 infrastructure outsourcing 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?

Billennium, headquartered in Warsaw, tops this list with the largest team on record.

Which city has the most infrastructure outsourcing companies?

Warszawa leads with 40 headquartered companies, followed by Warsaw (21) and Krakow (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 2,103 verified decision-maker contacts tracked across these 214 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 28, 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.