Company lists · Data refreshed September 2026

Top 25 Accounting and outsourcing services based in Poland

Name: Accounting 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 22, 2026 1,252 companies tracked

RevenueBase identified 1,252 accounting and outsourcing services headquartered in Poland as of September 2026 and tracks 8,144 professional contacts across them, including 2,590 with verified work emails and 133 with mobile numbers. Warszawa is the largest hub.

This list covers accounting 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 22, 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 22, 2026 86% judged on-target in blind review

1,252Companies

8,144Contacts tracked

2,590Verified emails

133Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest accounting and outsourcing services based in Poland

Ranked by team size

Top 25 of 1,252 accounting and outsourcing services based in Poland, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to accounting 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	Kpmg Poland	Indirect evidence	Warsaw, PolandHQ checked Sep 22, 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 22, 2026
2	TPA Poland	Indirect evidence	Poznań, PolandHQ checked Sep 22, 2026	201-500	242 contacts →
	Indirect evidence “TPA is the leading international consultancy group rendering comprehensive business advisory services.” Source: RevenueBase Database · checked Sep 22, 2026
3	RSM Poland	Indirect evidence	Poznań, PolandHQ checked Sep 22, 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 22, 2026
4	Rödl & Partner W Polsce	Indirect evidence	PolandHQ checked Sep 22, 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 22, 2026
5	Impel Business Solutions	Indirect evidence	Wrocław, PolandHQ checked Sep 22, 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 22, 2026
6	Sterling	Indirect evidence	Kraków Old Town, PolandHQ checked Sep 22, 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 22, 2026
7	Bss-Business Support Solution SA	Indirect evidence	Łódź, PolandHQ checked Sep 22, 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 22, 2026
8	Moore Polska	Indirect evidence	Warsaw, PolandHQ checked Sep 22, 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 22, 2026
9	ASB Group Poland	Indirect evidence	Warszawa, PolandHQ checked Sep 22, 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 22, 2026
10	GLC	Indirect evidence	Katowice, PolandHQ checked Sep 22, 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 22, 2026
11	EFF European Finance Function	Partial evidence	Poznan, PolandHQ checked Sep 22, 2026	51-200	81 contacts →
	Partial evidence “At European Finance Function (EFF), we deliver global accounting and compliance solutions that empower businesses of all sizes, from fast-moving e-commerce startups to…” Source: RevenueBase Database · checked Sep 22, 2026
12	MAC Auditor Sp. Z O.O	Partial evidence	Warszawa, PolandHQ checked Sep 22, 2026	51-200	69 contacts →
	Partial evidence “Mac Auditor od 1994 roku świadczy na rzecz klientów biznesowych usługi z obszaru audytu, outsourcingu usług księgowych i kadrowo-płacowych oraz doradztwa.” Source: RevenueBase Database · checked Sep 22, 2026
13	Getsix	Partial evidence	Wrocław, PolandHQ checked Sep 22, 2026	201-500	60 contacts →
	Partial evidence “getsix® is a trusted One-Stop-Shop partner for companies investing and operating in Poland, delivering fully integrated Accounting, Tax, HR & Payroll, Legal and Business Services.” Source: RevenueBase Database · checked Sep 22, 2026
14	Meritoros SA	Partial evidence	Czyżyny, PolandHQ checked Sep 22, 2026	51-200	60 contacts →
	Partial evidence “We entered the market in 2004, starting as a small, inconspicuous accounting office.” Source: RevenueBase Database · checked Sep 22, 2026
15	Skłodowscy Sp. Z O.O	Indirect evidence	Marki, PolandHQ checked Sep 22, 2026	51-200	60 contacts →
	Indirect evidence “Kancelaria Podatkowa Skłodowscy to wyjątkowa oferta na polskim rynku: połączenie eksperckiej wiedzy prawno-podatkowej z nowoczesnymi rozwiązaniami informatycznymi i pełną gamą…” Source: RevenueBase Database · checked Sep 22, 2026
16	JGA Doradztwo Prawne I Podatkowe	Indirect evidence	Katowice, PolandHQ checked Sep 22, 2026	51-200	57 contacts →
	Indirect evidence “Jesteśmy blisko 150-osobowym zespołem ekspertów – prawników, doradców podatkowych i księgowych.” Source: RevenueBase Database · checked Sep 22, 2026
17	Thedy & Partners	Indirect evidence	Warsaw, PolandHQ checked Sep 22, 2026	51-200	50 contacts →
	Indirect evidence “We are a team of people focused on delivering to our clients consulting services in the area of Finance and Tax.” Source: RevenueBase Database · checked Sep 22, 2026
18	JB Solutions	Indirect evidence	Gdańsk, PolandHQ checked Sep 22, 2026	51-200	47 contacts →
	Indirect evidence “JB Solutions to szybko rozwijające się na rynku polskim i europejskim biuro księgowo-doradcze.” Source: RevenueBase Database · checked Sep 22, 2026
19	Baker Tilly TPA	Indirect evidence	Warsaw, PolandHQ checked Sep 22, 2026	201-500	44 contacts →
	Indirect evidence “Baker Tilly TPA świadczy kompleksowe usługi audytorskie oraz doradztwa biznesowego.” Source: RevenueBase Database · checked Sep 22, 2026
20	Cswp Audit TAX Advisory Independent Member Of GGI	Indirect evidence	Warsaw, PolandHQ checked Sep 22, 2026	11-50	40 contacts →
	Indirect evidence “CSWP Audit \| Tax \| Advisory is a dynamically growing group of consulting firms, part of Geneva Group International network.” Source: RevenueBase Database · checked Sep 22, 2026
21	ATA Finance	Indirect evidence	Warszawa, PolandHQ checked Sep 22, 2026	51-200	40 contacts →
	Indirect evidence “ATA Finance is a team of specialists, including - tax advisors- certified accountants, and - expert auditors.” Source: RevenueBase Database · checked Sep 22, 2026
22	Nexia PRO Audit	Indirect evidence	Kraków, PolandHQ checked Sep 22, 2026	51-200	39 contacts →
	Indirect evidence “Nexia Pro Audit od 2002 roku wspiera swoich Klientów w ich bezpiecznym rozwoju świadcząc usługi audytorskie, doradcze, księgowe oraz kadrowo-płacowe.” Source: RevenueBase Database · checked Sep 22, 2026
23	Taxcoach Polska	Indirect evidence	Poznań, PolandHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “TaxCoach powstał jako wspólny projekt Miłosza Baranowskiego i Krzysztofa Mrugalskiego w 2017 roku.” Source: RevenueBase Database · checked Sep 22, 2026
24	Centrum Rachunkowości Zarządczej Ekkom Sp. Z O.O	Indirect evidence	Wrocław, PolandHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “Pomagamy firmom podejmować decyzje na podstawie danych, a nie intuicji.” Source: RevenueBase Database · checked Sep 22, 2026
25	Itelence	Partial evidence	Warszawa, PolandHQ checked Sep 22, 2026	51-200	36 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 22, 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: accounting 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 accounting and outsourcing services.
Partial evidence: Its own public description names part of accounting 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 accounting 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 1,252 accounting and outsourcing services based in Poland

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,590 reachable decision-makers.

Free signup · no credit card

View the full list →

Accounting and outsourcing services based in Poland at a glance

As of Sep 22, 2026

31.8%Verified-email coverage

1.6%Mobile-number coverage

6.5Average contacts per company

1-10Median size (employees)

17.4%Largest-city concentration · Warszawa

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

806

11-50

333

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

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

Email last verified

Median 24.0d

1,9480–30

56731–60

3361–90

290–180

40180+

Company record updated

Median 85.0d

00–30

2,03531–60

3,93961–90

1,62390–180

547180+

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 accounting 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 “accounting 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 accounting 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 accounting 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, 2,590 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 22, 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.

Accounting and outsourcing services by metro

Accounting and outsourcing services in Warszawa218
Accounting and outsourcing services in Wroclaw84
Accounting and outsourcing services in Poznan70
Accounting and outsourcing services in Krakow69
Accounting and outsourcing services in Warsaw63
Accounting and outsourcing services in Lodz48
Accounting and outsourcing services in Katowice47
Accounting and outsourcing services in Gdansk36
Accounting and outsourcing services in Gdynia28
Accounting and outsourcing services in Lublin26

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 accounting 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 accounting and outsourcing services are there based in Poland?

RevenueBase identified 1,252 accounting 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?

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

Which city has the most accounting and outsourcing services?

Warszawa leads with 218 headquartered companies, followed by Wroclaw (84) and Poznan (70).

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 2,590 verified decision-maker contacts tracked across these 1,252 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 22, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,252 accounting and outsourcing services based in Poland. Start with a free account, no credit card.

Download this list →

Related lists

Accounting and outsourcing services by geography

Browse the directory

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.