Company lists · Data refreshed September 2026

Top 25 Cpa firm outsourcing services based in Poland

RevenueBase identified 420 cpa firm outsourcing services headquartered in Poland as of September 2026 and tracks 1,620 professional contacts across them, including 449 with verified work emails. Warszawa is the largest hub.

This list covers cpa firm 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 21, 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 21, 2026 86% judged on-target in blind review
420Companies
1,620Contacts tracked
449Verified emails
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The 25 largest cpa firm outsourcing services based in Poland

Ranked by team size
Top 25 of 420 cpa firm outsourcing services based in Poland, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to cpa firm 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidencePoznań, PolandHQ checked Sep 21, 2026201-500193 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 21, 2026
2Partial evidenceWarszawa, PolandHQ checked Sep 21, 202651-20069 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 21, 2026
3Indirect evidenceWarsaw, PolandHQ checked Sep 21, 2026201-50044 contacts →

Indirect evidence

“Baker Tilly TPA świadczy kompleksowe usługi audytorskie oraz doradztwa biznesowego.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceWarszawa, PolandHQ checked Sep 21, 202651-20040 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidencePoznań, PolandHQ checked Sep 21, 202651-20037 contacts →

Indirect evidence

“TaxCoach powstał jako wspólny projekt Miłosza Baranowskiego i Krzysztofa Mrugalskiego w 2017 roku.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceWarszawa, PolandHQ checked Sep 21, 202611-5031 contacts →

Indirect evidence

“Tworzymy zewnętrzny, pełnowymiarowy dział finansowy dostosowany do potrzeb Twojej firmy.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidencePoznań, PolandHQ checked Sep 21, 202611-5020 contacts →

Indirect evidence

“Kompleksowe wsparcie firm w dynamicznym otoczeniu biznesowym.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceKatowice, PolandHQ checked Sep 21, 202651-20020 contacts →

Indirect evidence

“Profesjonalizm buduje zaufanie.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceWarsaw, PolandHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“ARPI Accounting (ARPI & Partners Sp.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceWarsaw, PolandHQ checked Sep 21, 202611-5015 contacts →

Indirect evidence

“Misters Audytor Adviser Sp.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceWarsaw, PolandHQ checked Sep 21, 202651-20015 contacts →

Indirect evidence

“ECDP Group is one of leading consulting firms in Poland present in the market for twelve years.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceWrocław, PolandHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

“We offer complex accounting and business consulting.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceWrocław, PolandHQ checked Sep 21, 202611-5012 contacts →

Indirect evidence

“Zespół "QUATRO" sp.”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceKraków, PolandHQ checked Sep 21, 202611-5011 contacts →

Indirect evidence

“A.M.”

Source: RevenueBase Database · checked Sep 21, 2026
15Indirect evidencePolandHQ checked Sep 21, 202611-5010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceWarszawa, PolandHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceWarszawa, PolandHQ checked Sep 21, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceMikołów, PolandHQ checked Sep 21, 202651-2009 contacts →

Indirect evidence

“Rosnący rynek i dynamiczny rozwój przedsiębiorstw sprawiają, że korzystanie z usług specjalistów staje się koniecznością dla wielu podmiotów gospodarczych.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceKraków, PolandHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

“Auditors Górka & Szulc to kancelaria księgowa świadcząca usługi zarówno na rzecz niewielkich spółek lokalnych, jak i dużych międzynarodowych korporacji w zakresie księgowości…”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceBydgoszcz, PolandHQ checked Sep 21, 202611-507 contacts →

Indirect evidence

“Nasze biuro rachunkowe mieści się w Bydgoszczy.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceKraków, PolandHQ checked Sep 21, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceToruń, PolandHQ checked Sep 21, 202611-506 contacts →

Indirect evidence

“Jesteśmy zespołem specjalistów z zakresu bieżącej obsługi księgowej oraz kadrowej.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceWarszawa, PolandHQ checked Sep 21, 20261-106 contacts →

Indirect evidence

“Biuro rachunkowe Clever Tax powstało z myślą o tym, aby dać wszystkim naszym klientom pewność, że powierzyli swoje sprawy zaufanym i rzetelnym osobom.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceWarszawa, PolandHQ checked Sep 21, 202611-506 contacts →

Indirect evidence

“Warszawskie Centrum Doradztwa Finansowego (WCDF) to wyjątkowy zespół samodzielnych księgowych z wieloletnim doświadczeniem i możliwie najwyższymi kwalifikacjami w tym zawodzie.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceBiałystok, PolandHQ checked Sep 21, 20261-106 contacts →

Indirect evidence

“We are a modern accounting firm that brings traditional accounting into the online world, offering comprehensive services for sole proprietorships (JDG), limited liability…”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 420 cpa firm outsourcing services based in Poland

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Cpa firm outsourcing services based in Poland at a glance

As of Sep 21, 2026
27.7%Verified-email coverage
3.9Average contacts per company
1-10Median size (employees)
16.9%Largest-city concentration · Warszawa
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
287
11-50
100
51-200
17
201-500
4

Email recency for this list is measured worldwide rather than for Poland, so it is reported there. Company counts and contact totals on this page are exact for Poland, over 420 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 cpa firm 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 “cpa firm 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 cpa firm 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 cpa firm 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, 449 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 21, 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.

Cpa firm outsourcing services by metro

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 cpa firm 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 cpa firm outsourcing services are there based in Poland?

RevenueBase identified 420 cpa firm 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?

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

Which city has the most cpa firm outsourcing services?

Warszawa leads with 71 headquartered companies, followed by Krakow (27) and Wroclaw (27).

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 449 verified decision-maker contacts tracked across these 420 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 21, 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.