Company lists · Data refreshed September 2026

Top 25 Private client accounting firms based in Poland

RevenueBase identified 295 private client accounting firms headquartered in Poland as of September 2026 and tracks 3,661 professional contacts across them, including 646 with verified work emails and 115 with mobile numbers. Warszawa is the largest hub.

This list covers private client accounting firms 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, 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
295Companies
3,661Contacts tracked
646Verified emails
115Mobile numbers
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The 25 largest private client accounting firms based in Poland

Ranked by team size
Top 25 of 295 private client accounting firms based in Poland, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names private client accounting firms: 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
RSM PolandIndirect evidence
Poznań, PolandHQ checked Sep 5, 2026201-500193

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

Source: company website · checked Sep 5, 2026
2
ALTOIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202651-200146

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

Source: company website · checked Sep 5, 2026
3
Moore PolskaIndirect evidence
Warsaw, PolandHQ checked Sep 5, 2026201-500131

“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: company website · checked Sep 5, 2026
4
Thedy & PartnersPartial evidence
Warsaw, PolandHQ checked Sep 5, 202651-20050

“We are a team of people focused on delivering to our clients consulting services in the area of Finance and Tax.”

Source: company website · checked Sep 5, 2026
5
ATA FinanceIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202651-20040

“ATA Finance is a team of specialists, including - tax advisors- certified accountants, and - expert auditors.”

Source: company website · checked Sep 5, 2026
6
Mariański GroupIndirect evidence
Łódź, PolandHQ checked Sep 5, 202611-5030

“Mariański Group to kancelaria prawno-podatkowa wyspecjalizowana w obsłudze firm rodzinnych i prywatnych inwestorów.”

Source: company website · checked Sep 5, 2026
7
Vattax Sp. Z O.OIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202651-20029

“Od ok.”

Source: company website · checked Sep 5, 2026
8Poznań, PolandHQ checked Sep 5, 202611-5027

“TLhub to zorganizowana interdyscyplinarnie firma doradcza, oferująca kompleksowe doradztwo w trzech, kluczowych dla efektywnego i bezpiecznego prowadzenia biznesu obszarach…”

Source: company website · checked Sep 5, 2026
9
Kancelaria Finansowa LEXIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202611-5025

“Nasza Kancelaria świadczy usługi w zakresie prawno-finansowo-podatkowym.”

Source: company website · checked Sep 5, 2026
10
Arpi AccountingPartial evidence
Warsaw, PolandHQ checked Sep 5, 202611-5019

“ARPI Accounting (ARPI & Partners Sp.”

Source: company website · checked Sep 5, 2026
11
Innside TAXIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-5019

“Innside Tax to miejsce, w którym opiekujemy się wszystkimi sprawami podatkowymi naszych Klientów.”

Source: company website · checked Sep 5, 2026
12
ID AdvisoryIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202611-5018

“Po wielu latach lat spędzonych na stanowiskach managerskich w firmach z tzw.”

Source: company website · checked Sep 5, 2026
13Wrocław, PolandHQ checked Sep 5, 202611-5016

“Jesteśmy firmą doradczą specjalizującą się w prawie podatkowym oraz prawie gospodarczym.”

Source: company website · checked Sep 5, 2026
14
WZ PartnersIndirect evidence
Warsaw, PolandHQ checked Sep 5, 202611-5016

“WZ Partners Group is a family-owned company founded on passion, dating back to 1992.”

Source: company website · checked Sep 5, 2026
15
SSWPartial evidence
Warsaw, PolandHQ checked Sep 5, 202651-20015

“SSW is a leading firm with a singular focus – business of our clients.”

Source: company website · checked Sep 5, 2026
16
DMS TAXIndirect evidence
Wrocław, PolandHQ checked Sep 5, 202611-5014

“Jesteśmy zespołem doświadczonych ekspertów zajmujących się zagadnieniami szeroko rozumianego prawa podatkowego i finansowego.”

Source: company website · checked Sep 5, 2026
17Wrocław, PolandHQ checked Sep 5, 202611-5013

“We offer complex accounting and business consulting.”

Source: company website · checked Sep 5, 2026
18Poznań, PolandHQ checked Sep 5, 202651-20013

“Confiance to firma stworzona przez doradców i specjalistów z wieloletnim doświadczeniem.”

Source: company website · checked Sep 5, 2026
19Wrocław, PolandHQ checked Sep 5, 202611-5012

“DORADCY Z PASJĄ Od ponad 10 lat doradzamy małym i średnim przedsiębiorstwom w efektywnym prowadzeniu biznesu w Polsce.”

Source: company website · checked Sep 5, 2026
20Kraków, PolandHQ checked Sep 5, 202611-5011

“WWP is one of the largest legal and tax advisors in Krakow and surrounding region.”

Source: company website · checked Sep 5, 2026
21Kraków, PolandHQ checked Sep 5, 202611-5011

“A.M.”

Source: company website · checked Sep 5, 2026
22Warszawa, PolandHQ checked Sep 5, 20261-1010

“Chojnacka & Łagowski Doradcy Podatkowi |CLDP| to prężnie rozwijająca się kancelaria świadcząca kompleksowe usługi doradztwa podatkowego.”

Source: company website · checked Sep 5, 2026
23
Grupa Doradcza KdrcIndirect evidence
Szczecin, PolandHQ checked Sep 5, 202611-5010

“Grupa KDRC jest tworzona przez trzy powiązane ze sobą podmioty gospodarcze: Kancelarię Doradztwa Podatkowego Przemysław Rosicki, KDRC sp.”

Source: company website · checked Sep 5, 2026
24Krakow, PolandHQ checked Sep 5, 202611-5010

“Magnet is a group of professional services companies combining audit expertise with business advisory capabilities.”

Source: company website · checked Sep 5, 2026
25Warszawa, PolandHQ checked Sep 5, 202611-509

“Grupa doświadczonych specjalistów CDB, kierując finansami klientów wdraża w ich spółkach procedury i zarządza procesami ukierunkowanymi na systematyczne zwiększanie efektywności…”

Source: company website · checked Sep 5, 2026

Showing 25 of 295 private client accounting firms based in Poland

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Private client accounting firms based in Poland at a glance

As of Sep 5, 2026
1-10Median size (employees)
WarszawaLargest hub · 58 HQs
115Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
169
11-50
110
51-200
11
201-500
3
501-1,000
1
1,001-5,000
1

Verified emails by last verification

0–30
595
31–60
32
61–90
0
90–180
0
180+
19

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 private client accounting firms, 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 Poland whose own description of what they do matches “private client accounting firms”. 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 private client accounting firms, 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 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, 646 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.

Private client accounting firms by metro

  • Private client accounting firms in Warszawa58
  • Private client accounting firms in Krakow26

Frequently asked

How many private client accounting firms are there based in Poland?

RevenueBase identified 295 private client accounting firms 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?

RSM Poland, headquartered in Poznan Wielkopolska, tops this list with the largest team on record.

Which city has the most private client accounting firms?

Warszawa leads with 58 headquartered companies, followed by Krakow (26) and Wroclaw (22).

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 646 verified decision-maker contacts tracked across these 295 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.

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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.