Company lists · Data refreshed September 2026

Top 25 Accounting firm client retention consultants based in Poland

RevenueBase identified 103 accounting firm client retention consultants headquartered in Poland as of September 2026 and tracks 561 professional contacts across them, including 146 with verified work emails. Warszawa is the largest hub.

This list covers accounting firm client retention consultants 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 27, 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 27, 2026 86% judged on-target in blind review
103Companies
561Contacts tracked
146Verified emails
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The 25 largest accounting firm client retention consultants based in Poland

Ranked by team size
Top 25 of 103 accounting firm client retention consultants based in Poland, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to accounting firm client retention consultants: 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 evidenceWarsaw, PolandHQ checked Sep 27, 202611-5040 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 27, 2026
2Indirect evidenceKraków, PolandHQ checked Sep 27, 202651-20039 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 27, 2026
3Indirect evidencePoznań, PolandHQ checked Sep 27, 202651-20037 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 27, 2026
4Indirect evidenceDąbrowa Górnicza, PolandHQ checked Sep 27, 202611-5031 contacts →

Indirect evidence

“BRAINSTORM to wiodąca marka na polskim rynku usług doradztwa biznesowego, strategicznego i szkoleń.”

Source: RevenueBase Database · checked Sep 27, 2026
5Indirect evidenceWarszawa, PolandHQ checked Sep 27, 202651-20028 contacts →

Indirect evidence

“Witamy Cię w gronie niezależnych księgowych, audytorów, doradców podatkowych i konsultantów biznesowych, zrzeszonych w sieci Russell Bedford International.”

Source: RevenueBase Database · checked Sep 27, 2026
6Indirect evidenceKatowice, PolandHQ checked Sep 27, 202651-20020 contacts →

Indirect evidence

“Profesjonalizm buduje zaufanie.”

Source: RevenueBase Database · checked Sep 27, 2026
7Partial evidenceWrocław, PolandHQ checked Sep 27, 202611-5013 contacts →

Partial evidence

“We offer complex accounting and business consulting.”

Source: RevenueBase Database · checked Sep 27, 2026
8Indirect evidenceWrocław, PolandHQ checked Sep 27, 202611-5012 contacts →

Indirect evidence

“Zespół "QUATRO" sp.”

Source: RevenueBase Database · checked Sep 27, 2026
9Indirect evidenceKraków, PolandHQ checked Sep 27, 202611-5011 contacts →

Indirect evidence

“A.M.”

Source: RevenueBase Database · checked Sep 27, 2026
10Partial evidenceKatowice, PolandHQ checked Sep 27, 202611-508 contacts →

Partial evidence

“Our team have an extensive experience in audits of financial statements as well as due-dilligence engagements and other financial and accounting advisory.”

Source: RevenueBase Database · checked Sep 27, 2026
11Indirect evidenceKraków, PolandHQ checked Sep 27, 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 27, 2026
12Indirect evidenceRokietnica, PolandHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

“Grupa doradcza dbkb jest obecna na rynku od 2009 roku.”

Source: RevenueBase Database · checked Sep 27, 2026
13Indirect evidenceKraków, PolandHQ checked Sep 27, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 27, 2026
14Indirect evidenceWarsaw, PolandHQ checked Sep 27, 20261-106 contacts →

Indirect evidence

“We are a dynamically growing company in the areas of: audit, valuations, transaction services and business consulting.”

Source: RevenueBase Database · checked Sep 27, 2026
15Partial evidenceWrocław, PolandHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“Gemini Audyt is a team of professionals who have gained their experience and expertise in auditing and in financial and accounting advice in the largest global consulting firms…”

Source: RevenueBase Database · checked Sep 27, 2026
16Partial evidenceWarszawa, PolandHQ checked Sep 27, 202611-505 contacts →

Partial evidence

“ASB Accounting to część ASB Group – międzynarodowej grupy firm doradczych i dostawcą wysokiej jakości usług w zakresie księgowości, doradztwa podatkowego, kadr i płac, doradztwa…”

Source: RevenueBase Database · checked Sep 27, 2026
17Indirect evidenceKraków, PolandHQ checked Sep 27, 20261-105 contacts →

Indirect evidence

“Kancelaria oferuje szeroki zakres usług w dziedzinie finansów, rachunkowości, doradztwa dla biznesu.”

Source: RevenueBase Database · checked Sep 27, 2026
18Indirect evidenceChorzów, PolandHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

“Kancelaria Podatkowa SINTRA to nie tylko biuro rachunkowe.”

Source: RevenueBase Database · checked Sep 27, 2026
19Indirect evidenceWarszawa, PolandHQ checked Sep 27, 202611-504 contacts →

Indirect evidence

“Profesjonalni Księgowi Sp.”

Source: RevenueBase Database · checked Sep 27, 2026
20Indirect evidenceKraków, PolandHQ checked Sep 27, 20261-104 contacts →

Indirect evidence

“SmartNumbers to zespół doświadczonych profesjonalistów, którzy od wielu lat pracują w księgowości.”

Source: RevenueBase Database · checked Sep 27, 2026
21Indirect evidenceWarszawa, PolandHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“Prime Number to nowy podmiot, który wyrósł z 30 letniego doświadczenia rodzinnej firmy audytorsko-księgowej.”

Source: RevenueBase Database · checked Sep 27, 2026
22Indirect evidenceWarszawa, PolandHQ checked Sep 27, 20261-103 contacts →

Indirect evidence

“TAXENO to grupa eksperckich biur rachunkowych, zapewniających kompleksową obsługę rachunkowo-księgową oraz kadrową dla firm i instytucji z różnych branż, usługi przedstawicielstwa…”

Source: RevenueBase Database · checked Sep 27, 2026
23Indirect evidenceKraków, PolandHQ checked Sep 27, 202611-502 contacts →

Indirect evidence

“Jesteśmy dynamicznie rozwijającą się grupą firm, w której skład wchodzi ABISTEMA Kancelaria Doradcza Sp.”

Source: RevenueBase Database · checked Sep 27, 2026
24Indirect evidenceTarnowskie Góry, PolandHQ checked Sep 27, 202611-502 contacts →

Indirect evidence

“DEBET Sp.”

Source: RevenueBase Database · checked Sep 27, 2026
25Partial evidenceWarszawa, PolandHQ checked Sep 27, 20261-102 contacts →

Partial evidence

“Based on the knowledge of our experts and twenty years of experience, we provide our clients with information and tools that facilitate the management and development of the…”

Source: RevenueBase Database · checked Sep 27, 2026

Showing 25 of 103 accounting firm client retention consultants based in Poland

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Accounting firm client retention consultants based in Poland at a glance

As of Sep 27, 2026
26.0%Verified-email coverage
5.4Average contacts per company
1-10Median size (employees)
20.4%Largest-city concentration · Warszawa
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
63
11-50
29
51-200
11

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 103 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 accounting firm client retention consultants, 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 firm client retention consultants”. 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 firm client retention consultants), 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 firm client retention consultants, 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, 146 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 27, 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.

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 firm client retention consultants, 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 firm client retention consultants are there based in Poland?

RevenueBase identified 103 accounting firm client retention consultants 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?

Cswp Audit TAX Advisory Independent Member Of GGI, headquartered in Warsaw, tops this list with the largest team on record.

Which city has the most accounting firm client retention consultants?

Warszawa leads with 21 headquartered companies, followed by Krakow (9) and Wroclaw (7).

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 146 verified decision-maker contacts tracked across these 103 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 27, 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.