Company lists · Data refreshed September 2026

Top 25 Advisory and outsourcing services based in Poland

RevenueBase identified 2,007 company matches for advisory and outsourcing services associated with Poland as of September 2026 and tracks 21,435 professional contacts across them, including 7,211 with verified work emails and 465 with mobile numbers. Warsaw is the largest hub.

This list covers company matches for advisory and outsourcing services associated with Poland, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 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 RevenueBase SmartSearch · Exact Recorded Sep 23, 2026 How this list was built
2,007Companies
21,435Contacts tracked
7,211Verified emails
465Mobile numbers
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The 25 largest advisory and outsourcing services based in Poland

Ranked by team size
Top 25 of 2,007 company matches for advisory and outsourcing services based in Poland, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWarsaw, PolandHQ recorded Sep 23, 20265,001-10,0001,738 contacts →

Exact match

“Accenture to wiodąca, globalna firma świadcząca profesjonalne usługi na rzecz przedsiębiorstw, będących światowymi liderami, a także organizacji rządowych i pozarządowych.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2Exact matchWarsaw, PolandHQ recorded Sep 23, 20261,001-5,0001,696 contacts →

Exact match

“KPMG jest globalną organizacją niezależnych firm świadczących profesjonalne usługi z zakresu audytu, doradztwa podatkowego, finansowego, prawnego oraz consultingu.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3Exact matchWarsaw, PolandHQ recorded Sep 23, 2026501-1,000544 contacts →

Exact match

“Growe is a leading business advisory and services group in iGaming and Entertainment.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4Exact matchWarsaw, PolandHQ recorded Sep 23, 2026201-500407 contacts →

Exact match

“We are a leading Polish consulting firm committed to helping businesses make informed decisions.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5Exact matchWarsaw, PolandHQ recorded Sep 23, 20265,001-10,000404 contacts →

Exact match

“EY jest światowym liderem rynku usług profesjonalnych obejmujących usługi audytorskie, doradztwo podatkowe, doradztwo biznesowe oraz doradztwo strategiczne i transakcyjne.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6Exact matchWarsaw, PolandHQ recorded Sep 23, 2026201-500249 contacts →

Exact match

“Pentacomp has been established in 1995.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7Exact matchWarsaw, PolandHQ recorded Sep 23, 20261,001-5,000249 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8Exact matchPoznań, PolandHQ recorded Sep 23, 2026201-500242 contacts →

Exact match

“TPA is the leading international consultancy group rendering comprehensive business advisory services.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9Exact matchWarsaw, PolandHQ recorded Sep 23, 2026201-500239 contacts →

Exact match

“PKF Polska od blisko 35 lat wspiera rozwój, bezpieczeństwo i transformację przedsiębiorstw w Polsce.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10Exact matchWarsaw, PolandHQ recorded Sep 23, 20261,001-5,000225 contacts →

Exact match

“We are a leading provider of IT services and consulting.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11Exact matchKraków, PolandHQ recorded Sep 23, 2026501-1,000223 contacts →

Exact match

“itWORKS is an IT company which addresses its offer to IT and business departments.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12Exact matchWarsaw, PolandHQ recorded Sep 23, 2026201-500196 contacts →

Exact match

“W Profitowi wierzymy, że podejmowanie decyzji finansowych powinno być proste i przejrzyste.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13Exact matchPoznań, PolandHQ recorded Sep 23, 2026201-500193 contacts →

Exact match

“RSM Poland to więcej niż biuro rachunkowe, kancelaria doradztwa podatkowego i firma audytorska – to przede wszystkim profesjonalni doradcy i zaufani partnerzy w biznesie.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14Exact matchPolandHQ recorded Sep 23, 2026501-1,000193 contacts →

Exact match

“As attorneys, tax advisers, management and IT consultants and auditors, we are present with 110 own offices in around 50 countries.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15Exact matchWrocław, PolandHQ recorded Sep 23, 2026201-500190 contacts →

Exact match

“Impel Business Solutions to doświadczony i wykwalifikowany dostawca wspierający biznes w zakresie usług back-office.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16Exact matchKraków Old Town, PolandHQ recorded Sep 23, 20261,001-5,000186 contacts →

Exact match

“ℹ Sterling – The Missing Piece to Your Business Success Looking for seamless customer service, smarter credit management, or efficient debt recovery?”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17Exact matchWrocław, PolandHQ recorded Sep 23, 2026201-500160 contacts →

Exact match

“OW is an experienced consulting firm in the area of professional services.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18Exact matchŁódź, PolandHQ recorded Sep 23, 2026201-500153 contacts →

Exact match

“Business Support Solution (BSS) to spółka należąca do Grupy Pelion, specjalizująca się we wsparciu organizacji w obszarach finansów, kadr i płac oraz obsługi procesów biznesowych.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19Exact matchWarsaw, PolandHQ recorded Sep 23, 202651-200146 contacts →

Exact match

“ALTO is one of the fastest growing advisory firms in Poland.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20Exact matchGdańsk, PolandHQ recorded Sep 23, 2026201-500135 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21Exact matchWarsaw, PolandHQ recorded Sep 23, 202651-200135 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22Exact matchWarsaw, PolandHQ recorded Sep 23, 2026201-500131 contacts →

Exact match

“Moore Polska to 35 lat doświadczenia dwóch renomowanych firm audytorskich na polskim rynku – Moore Polska i Morison Finansista, którzy w 2021 roku połączyli swoje siły pod jedną…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23Exact matchWarsaw, PolandHQ recorded Sep 23, 2026201-500129 contacts →

Exact match

“ASB Poland jest częścią międzynarodowej ASB Group, grupy firm doradczych i dostawcą wysokiej jakości usług w zakresie księgowości, doradztwa podatkowego, kadr i płac, doradztwa…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24Exact matchKrakow, PolandHQ recorded Sep 23, 202651-200117 contacts →

Exact match

“Arc Consulting is a company specializing in business consulting, IT consulting and advanced IT solutions.”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25Exact matchKatowice, PolandHQ recorded Sep 23, 202651-20097 contacts →

Exact match

“Od 27 lat ułatwiamy prowadzenie biznesu Czynimy biznes łatwiejszym, wspierając naszych Klientów w zakresie księgowości, usług audytorskich, doradztwa podatkowego, obsługi prawnej…”

Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

Showing 25 of 2,007 advisory and outsourcing services based in Poland

See the full list, filter by size, metro and specialty, and access 7,211 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Advisory and outsourcing services based in Poland at a glance

As of Sep 23, 2026
33.6%Verified-email coverage
2.2%Mobile-number coverage
10.7Average contacts per company
1-10Median size (employees)
36.7%Largest-city concentration · Warsaw
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
1,232
11-50
569
51-200
125
201-500
43
501-1,000
15
1,001-5,000
10
5,001-10,000
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 26.0d

Company record updated

Median 78.0d

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Poland whose business descriptions match “advisory and outsourcing services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 7,211 professional contacts with verified work emails across the full matched dataset. 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 23, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “advisory and outsourcing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many advisory and outsourcing services are there based in Poland?

RevenueBase identified 2,007 company matches for advisory and outsourcing services associated with Poland as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Accenture Poland tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most advisory and outsourcing services?

Warsaw leads with 737 company records, followed by Wroclaw (166) and Krakow (124).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 7,211 professional contacts with verified work emails tracked across these 2,007 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 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.