Company lists · Data refreshed September 2026

Top 25 Advisory and outsourcing services based in Poland

Name: Advisory and outsourcing services based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 2,007 companies tracked

RevenueBase identified 2,007 advisory and outsourcing services headquartered in 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. Warszawa is the largest hub.

This list covers advisory and outsourcing services 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 23, 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 23, 2026 86% judged on-target in blind review

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 advisory and outsourcing services based in Poland, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to advisory and outsourcing services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Accenture Poland	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	5,001-10,000	1,738 contacts →
	Indirect evidence “Accenture to wiodąca, globalna firma świadcząca profesjonalne usługi na rzecz przedsiębiorstw, będących światowymi liderami, a także organizacji rządowych i pozarządowych.” Source: RevenueBase Database · checked Sep 23, 2026
2	Kpmg Poland	Indirect evidence	Warsaw, PolandHQ checked Sep 23, 2026	1,001-5,000	1,696 contacts →
	Indirect evidence “KPMG jest globalną organizacją niezależnych firm świadczących profesjonalne usługi z zakresu audytu, doradztwa podatkowego, finansowego, prawnego oraz consultingu.” Source: RevenueBase Database · checked Sep 23, 2026
3	GROWE	Partial evidence	Warsaw, PolandHQ checked Sep 23, 2026	501-1,000	544 contacts →
	Partial evidence “Growe is a leading business advisory and services group in iGaming and Entertainment.” Source: RevenueBase Database · checked Sep 23, 2026
4	CRIDO	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	201-500	407 contacts →
	Indirect evidence “We are a leading Polish consulting firm committed to helping businesses make informed decisions.” Source: RevenueBase Database · checked Sep 23, 2026
5	EY Polska	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	5,001-10,000	404 contacts →
	Indirect evidence “EY jest światowym liderem rynku usług profesjonalnych obejmujących usługi audytorskie, doradztwo podatkowe, doradztwo biznesowe oraz doradztwo strategiczne i transakcyjne.” Source: RevenueBase Database · checked Sep 23, 2026
6	Pentacomp	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	201-500	249 contacts →
	Indirect evidence “Pentacomp has been established in 1995.” Source: RevenueBase Database · checked Sep 23, 2026
7	Everhelp	Partial evidence	Warsaw, PolandHQ checked Sep 23, 2026	1,001-5,000	249 contacts →
	Partial evidence “Your dedicated process outsourcing partner with data-driven approach EverHelp is an industry-leading provider of business operations outsourcing and customer support solutions.” Source: RevenueBase Database · checked Sep 23, 2026
8	TPA Poland	Partial evidence	Poznań, PolandHQ checked Sep 23, 2026	201-500	242 contacts →
	Partial evidence “TPA is the leading international consultancy group rendering comprehensive business advisory services.” Source: RevenueBase Database · checked Sep 23, 2026
9	PKF Polska	Indirect evidence	Warsaw, PolandHQ checked Sep 23, 2026	201-500	239 contacts →
	Indirect evidence “PKF Polska od blisko 35 lat wspiera rozwój, bezpieczeństwo i transformację przedsiębiorstw w Polsce.” Source: RevenueBase Database · checked Sep 23, 2026
10	Astek Polska	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	1,001-5,000	225 contacts →
	Indirect evidence “We are a leading provider of IT services and consulting.” Source: RevenueBase Database · checked Sep 23, 2026
11	Euvic IT SA	Indirect evidence	Kraków, PolandHQ checked Sep 23, 2026	501-1,000	223 contacts →
	Indirect evidence “itWORKS is an IT company which addresses its offer to IT and business departments.” Source: RevenueBase Database · checked Sep 23, 2026
12	Profitowi S.A	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	201-500	196 contacts →
	Indirect evidence “W Profitowi wierzymy, że podejmowanie decyzji finansowych powinno być proste i przejrzyste.” Source: RevenueBase Database · checked Sep 23, 2026
13	RSM Poland	Indirect evidence	Poznań, PolandHQ checked Sep 23, 2026	201-500	193 contacts →
	Indirect evidence “RSM Poland to więcej niż biuro rachunkowe, kancelaria doradztwa podatkowego i firma audytorska – to przede wszystkim profesjonalni doradcy i zaufani partnerzy w biznesie.” Source: RevenueBase Database · checked Sep 23, 2026
14	Rödl & Partner W Polsce	Indirect evidence	PolandHQ checked Sep 23, 2026	501-1,000	193 contacts →
	Indirect evidence “As attorneys, tax advisers, management and IT consultants and auditors, we are present with 110 own offices in around 50 countries.” Source: RevenueBase Database · checked Sep 23, 2026
15	Impel Business Solutions	Indirect evidence	Wrocław, PolandHQ checked Sep 23, 2026	201-500	190 contacts →
	Indirect evidence “Impel Business Solutions to doświadczony i wykwalifikowany dostawca wspierający biznes w zakresie usług back-office.” Source: RevenueBase Database · checked Sep 23, 2026
16	Sterling	Indirect evidence	Kraków Old Town, PolandHQ checked Sep 23, 2026	1,001-5,000	186 contacts →
	Indirect evidence “ℹ Sterling – The Missing Piece to Your Business Success Looking for seamless customer service, smarter credit management, or efficient debt recovery?” Source: RevenueBase Database · checked Sep 23, 2026
17	Olesiński I Wspólnicy	Indirect evidence	Wrocław, PolandHQ checked Sep 23, 2026	201-500	160 contacts →
	Indirect evidence “OW is an experienced consulting firm in the area of professional services.” Source: RevenueBase Database · checked Sep 23, 2026
18	Bss-Business Support Solution SA	Indirect evidence	Łódź, PolandHQ checked Sep 23, 2026	201-500	153 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 23, 2026
19	ALTO	Partial evidence	Warsaw, PolandHQ checked Sep 23, 2026	51-200	146 contacts →
	Partial evidence “ALTO is one of the fastest growing advisory firms in Poland.” Source: RevenueBase Database · checked Sep 23, 2026
20	Thyssenkrupp Group Services Gdańsk Sp. Z O.O	Indirect evidence	Gdańsk, PolandHQ checked Sep 23, 2026	201-500	135 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 23, 2026
21	Cyclad	Indirect evidence	Warsaw, PolandHQ checked Sep 23, 2026	51-200	135 contacts →
	Indirect evidence “In the vibrant sphere of international consulting, Cyclad distinguishes itself with deep specialization in the IT/ICT sectors.” Source: RevenueBase Database · checked Sep 23, 2026
22	Moore Polska	Indirect evidence	Warsaw, PolandHQ checked Sep 23, 2026	201-500	131 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 23, 2026
23	ASB Group Poland	Indirect evidence	Warszawa, PolandHQ checked Sep 23, 2026	201-500	129 contacts →
	Indirect evidence “ASB Poland jest częścią międzynarodowej ASB Group, grupy firm doradczych i dostawcą wysokiej jakości usług w zakresie księgowości, doradztwa podatkowego, kadr i płac, doradztwa…” Source: RevenueBase Database · checked Sep 23, 2026
24	ARC Consulting	Indirect evidence	Krakow, PolandHQ checked Sep 23, 2026	51-200	117 contacts →
	Indirect evidence “Arc Consulting is a company specializing in business consulting, IT consulting and advanced IT solutions.” Source: RevenueBase Database · checked Sep 23, 2026
25	GLC	Indirect evidence	Katowice, PolandHQ checked Sep 23, 2026	51-200	97 contacts →
	Indirect evidence “Od 27 lat ułatwiamy prowadzenie biznesu Czynimy biznes łatwiejszym, wspierając naszych Klientów w zakresie księgowości, usług audytorskich, doradztwa podatkowego, obsługi prawnej…” Source: RevenueBase Database · checked Sep 23, 2026

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: advisory and outsourcing services. 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 advisory and outsourcing services.
Partial evidence: Its own public description names part of advisory and outsourcing services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name advisory and outsourcing services. 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 2,007 advisory and outsourcing services based in Poland

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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)

23.3%Largest-city concentration · Warszawa

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

1,232

11-50

569

51-200

125

201-500

501-1,000

1,001-5,000

5,001-10,000

Freshness & accuracy

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

Email last verified

Median 26.0d

5,1780–30

1,66531–60

9761–90

390–180

268180+

Company record updated

Median 78.0d

00–30

5,86131–60

9,56861–90

4,62190–180

1,385180+

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 advisory and outsourcing services, 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 “advisory and outsourcing services”. 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 advisory and outsourcing services), 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 advisory and outsourcing services, 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, 7,211 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 23, 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.

Advisory and outsourcing services by metro

Advisory and outsourcing services in Warszawa467
Advisory and outsourcing services in Warsaw270
Advisory and outsourcing services in Wroclaw166
Advisory and outsourcing services in Krakow124
Advisory and outsourcing services in Poznan116
Advisory and outsourcing services in Gdansk65
Advisory and outsourcing services in Katowice63
Advisory and outsourcing services in Lodz50
Advisory and outsourcing services in Gdynia36
Advisory and outsourcing services in Szczecin29

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 advisory and outsourcing services, 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 advisory and outsourcing services are there based in Poland?

RevenueBase identified 2,007 advisory and outsourcing services 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?

Accenture Poland, headquartered in Warszawa, tops this list with the largest team on record.

Which city has the most advisory and outsourcing services?

Warszawa leads with 467 headquartered companies, followed by Warsaw (270) and Wroclaw (166).

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 7,211 verified decision-maker contacts tracked across these 2,007 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 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 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.