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Company lists · Data refreshed September 2026

Top 25 Outsourcing companies based in Warsaw, Poland

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 66 companies tracked

RevenueBase identified 66 outsourcing companies headquartered in Warsaw, Poland as of September 2026 and tracks 2,737 professional contacts across them, including 1,091 with verified work emails. Warszawa is the largest hub.

This list covers outsourcing companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review
66Companies
2,737Contacts tracked
1,091Verified emails
Unlock all 66 companies Free signup · no credit card · 500 free credits

The 25 largest outsourcing companies based in Warsaw, Poland

Ranked by team size
Top 25 of 66 outsourcing companies based in Warsaw, Poland, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names outsourcing companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
BillenniumStrong evidence
Warsaw, PolandHQ checked Sep 5, 20261,001-5,0001,290

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

Source: company website · checked Sep 5, 2026
2
EverhelpStrong evidence
Warsaw, PolandHQ checked Sep 5, 20261,001-5,000249

“Your dedicated process outsourcing partner with data-driven approach EverHelp is an industry-leading provider of business operations outsourcing and customer support solutions.”

Source: company website · checked Sep 5, 2026
3
Call Center PolandIndirect evidence
Warsaw, PolandHQ checked Sep 5, 2026501-1,000162

“Call Center Poland is a 360 degree contact center.”

Source: company website · checked Sep 5, 2026
4
CycladIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202651-200135

“In the vibrant sphere of international consulting, Cyclad distinguishes itself with deep specialization in the IT/ICT sectors.”

Source: company website · checked Sep 5, 2026
5
Mereb TechnologiesIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202651-20056

“Mereb Technologies helps European SaaS scale-ups ship faster by giving you dedicated, senior engineering teams under an EU contract.”

Source: company website · checked Sep 5, 2026
6
IT Connect Sp. Z O.OIndirect evidence
Warsaw, PolandHQ checked Sep 5, 2026201-50041

“Pomagamy liderom w branżach IT, inżynieryjnej oraz bankowej budować zwinne zespoły bez ryzyka rekrutacyjnego.”

Source: company website · checked Sep 5, 2026
7
IT SolutionStrong evidence
Warsaw, PolandHQ checked Sep 5, 202611-5041

“Jesteśmy firmą IT zajmującą się outsourcingiem usług.”

Source: company website · checked Sep 5, 2026
8
GS ServicesStrong evidence
Warsaw, PolandHQ checked Sep 5, 202651-20040

“GS Services is a global IT outsourcing and recruiting partner, delivering top-tier IT talent and scalable technology services.”

Source: company website · checked Sep 5, 2026
9
UnicallIndirect evidence
Warsaw, PolandHQ checked Sep 5, 2026501-1,00038

“Whether you seek customer acquisition, customer care, technical support or debt collection, we will be your best choice.”

Source: company website · checked Sep 5, 2026
10
MintymintStrong evidence
Warsaw, PolandHQ checked Sep 5, 202651-20037

“MintyMint is your technology solution provider & IT Outsourcing provider for scaling and upgrading your business or startup.”

Source: company website · checked Sep 5, 2026
11
IdeamotiveStrong evidence
Warsaw, PolandHQ checked Sep 5, 202651-20036

“We go beyond outsourcing by proprietary sourcing and skill matching, contract management, onboarding and performance tracking processes.”

Source: company website · checked Sep 5, 2026
12
Ness SolutionStrong evidence
Warsaw, PolandHQ checked Sep 5, 202651-20031

“Ness Solution is a Polish software development and IT outsourcing company with an international reach that expertly combines business with technology.”

Source: company website · checked Sep 5, 2026
13
Ornsson SolutionsStrong evidence
Warsaw, PolandHQ checked Sep 5, 202651-20030

“Ornsson Solutions manages HR and training processes end-to-end - from mandatory compliance training to full HR outsourcing - so companies can scale without building internal…”

Source: company website · checked Sep 5, 2026
14
Harvey Nash PolandIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202651-20024
Source: company website · checked Sep 5, 2026
15
NEW Digital StreetIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202651-20024
Source: company website · checked Sep 5, 2026
16
OutmaticIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-5023

“Most engineering partnerships create vendor lock-in.”

Source: company website · checked Sep 5, 2026
17
QPSStrong evidence
Warsaw, PolandHQ checked Sep 5, 2026501-1,00022

“Jesteśmy firmą specjalizującą się w dostarczaniu usług z zakresu szeroko pojętego outsourcingu procesów biznesowych.”

Source: company website · checked Sep 5, 2026
18
JellytechStrong evidence
Warsaw, PolandHQ checked Sep 5, 202611-5015

“JellyTech helps its clients grow their business through professional software development services, data analytics, and outsourcing.”

Source: company website · checked Sep 5, 2026
19
EWL SolutionsStrong evidence
Warsaw, PolandHQ checked Sep 5, 202611-5014

“Kwestionujemy status quo branży outsourcingu!”

Source: company website · checked Sep 5, 2026
20
KomplusStrong evidence
Warsaw, PolandHQ checked Sep 5, 202611-5010

“We are a company which provides IT outsourcing services.”

Source: company website · checked Sep 5, 2026
21
L.M. Group PolandIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-5010

“L.M.”

Source: company website · checked Sep 5, 2026
22
Outsourcing24 Sp. Z O.OIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-509

“Since 2005, we grow in parallel with our clients who consciously choose ambitious companies for partnership that provides measurable business benefits thanks to people, systems…”

Source: company website · checked Sep 5, 2026
23
IncoallianceIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-509

“INCOalliance is a global company providing software development, engineering, and remote services.”

Source: company website · checked Sep 5, 2026
24
Conet Sieci I SystemyIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-507

“CONET Sieci i Systemy to zespół specjalistów z długoletnim doświadczeniem, który od 25 lat wspiera klientów podczas codziennych zadań i projektów, pomagając pracownikom i działom…”

Source: company website · checked Sep 5, 2026
25
CGO FinanceStrong evidence
Warsaw, PolandHQ checked Sep 5, 202611-505

“CGO Finance specializes in outsourcing accounting services as well as HR and payroll services for both international and local enterprises.”

Source: company website · checked Sep 5, 2026

Showing 25 of 66 outsourcing companies based in Warsaw, Poland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,091 reachable decision-makers.

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Outsourcing companies based in Warsaw, Poland at a glance

As of Sep 5, 2026
11-50Median size (employees)
WarszawaLargest hub · 95 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
16
11-50
27
51-200
13
201-500
4
501-1,000
4
1,001-5,000
2

Email recency for this list is measured across the whole Poland list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Warsaw, over 66 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 outsourcing 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 Warsaw, Poland whose own description of what they do matches “outsourcing 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 outsourcing companies, 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 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, 1,091 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 5, 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.

Outsourcing companies by metro in Poland

Frequently asked

How many outsourcing companies are there based in Warsaw, Poland?

RevenueBase identified 66 outsourcing companies 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?

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

Which city has the most outsourcing companies?

Warszawa leads with 95 headquartered companies, followed by Warsaw (66) and Wroclaw (36).

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 1,091 verified decision-maker contacts tracked across these 66 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 66 outsourcing companies based in Warsaw, Poland. Start with a free account, no credit card.

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Related lists

Browse: Companies home · Outsourcing companies in Poland · All Poland lists · All Outsourcing companies lists · New lists

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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