Company lists · Data refreshed September 2026

Top 25 Professional services firms based in Warszawa, Poland

RevenueBase identified 194 professional services firms headquartered in Warszawa, Poland as of September 2026 and tracks 3,908 professional contacts across them, including 1,771 with verified work emails. Warszawa is the largest hub.

This list covers professional services firms headquartered in Warszawa, 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
194Companies
3,908Contacts tracked
1,771Verified emails
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The 25 largest professional services firms based in Warszawa, Poland

Ranked by team size
Top 25 of 194 professional services firms based in Warszawa, Poland, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names professional services 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
CRIDOIndirect evidence
Warszawa, PolandHQ checked Sep 5, 2026201-500407

“We are a leading Polish consulting firm committed to helping businesses make informed decisions.”

Source: company website · checked Sep 5, 2026
2
EY PolskaIndirect evidence
Warszawa, PolandHQ checked Sep 5, 20265,001-10,000404

“EY jest światowym liderem rynku usług profesjonalnych obejmujących usługi audytorskie, doradztwo podatkowe, doradztwo biznesowe oraz doradztwo strategiczne i transakcyjne.”

Source: company website · checked Sep 5, 2026
3
ASB Group PolandIndirect evidence
Warszawa, PolandHQ checked Sep 5, 2026201-500129

“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: company website · checked Sep 5, 2026
4
MAC Auditor Sp. Z O.OIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202651-20069

“Mac Auditor od 1994 roku świadczy na rzecz klientów biznesowych usługi z obszaru audytu, outsourcingu usług księgowych i kadrowo-płacowych oraz doradztwa.”

Source: company website · checked Sep 5, 2026
5Warszawa, PolandHQ checked Sep 5, 202651-20057

“Graś i Wspólnicy sp.k.”

Source: company website · checked Sep 5, 2026
6
Nexia AdviceroStrong evidence
Warszawa, PolandHQ checked Sep 5, 202651-20053

“Nexia Advicero is a professional advisory firm delivering integrated tax, legal, accounting and business advisory services to Polish and international clients.”

Source: company website · checked Sep 5, 2026
7Warszawa, PolandHQ checked Sep 5, 202611-5042

“MGW Corporate Consulting Group is an independent Polish consulting company founded in 2009 by a Group of Managers from the financial sector.”

Source: company website · checked Sep 5, 2026
8
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
9
LSWIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202611-5038

“LSW is a team of nearly 60 lawyers that has been successively supporting clients since 1998 in all areas of law and tax for business.”

Source: company website · checked Sep 5, 2026
10
Vattax Sp. Z O.OIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202651-20029

“Od ok.”

Source: company website · checked Sep 5, 2026
11
Russell Bedford PolandIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202651-20028

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

Source: company website · checked Sep 5, 2026
12
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
13Warszawa, PolandHQ checked Sep 5, 202611-5022

“Kancelaria specjalizuje się w kompleksowym doradztwie w zakresie prowadzenia biznesu.”

Source: company website · checked Sep 5, 2026
14
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
15
TwentytwentyIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202611-5015

“Jesteśmy zespołem ekspertów w dziedzinie prawa, podatków, księgowości, rozwiązań IT, usług HR oraz marketingu.”

Source: company website · checked Sep 5, 2026
16Warszawa, PolandHQ checked Sep 5, 20261-1013

“Naszym Klientom oferujemy kompleksową obsługę prawną dopasowaną do ich potrzeb i dynamicznie rozwijającego się świata biznesu.”

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

“Kancelaria Radców Prawnych i Doradców Podatkowych Ferretti Bębenek i Partnerzy zrodziła się ze spotkania dwóch zapalonych profesjonalistów: Giovanniego Ferrettiego oraz Pawła…”

Source: company website · checked Sep 5, 2026
18
ADN Doradztwo PodatkoweIndirect evidence
Warszawa, PolandHQ checked Sep 5, 20261-1013

“Spółka Doradztwa Podatkowego ADN Podatki Sp.”

Source: company website · checked Sep 5, 2026
19
Arena AccountingIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202651-20012

“Arena Accounting sp.”

Source: company website · checked Sep 5, 2026
20Warszawa, PolandHQ checked Sep 5, 202611-5012
Source: company website · checked Sep 5, 2026
21
Mazars In PolandIndirect evidence
Warszawa, PolandHQ checked Sep 5, 2026201-50011

“Mazars jest międzynarodową, zintegrowaną i niezależną firmą specjalizującą się w audycie, usługach księgowych, doradztwie podatkowym, prawnym i usługach doradczych.”

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
23Warszawa, 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
24
DFKIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202611-509
Source: company website · checked Sep 5, 2026
25
TaxenbachIndirect evidence
Warszawa, PolandHQ checked Sep 5, 202611-509

“Początki działalności TAXENBACH sięgają 2017 roku.”

Source: company website · checked Sep 5, 2026

Showing 25 of 194 professional services firms based in Warszawa, Poland

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Professional services firms based in Warszawa, Poland at a glance

As of Sep 5, 2026
1-10Median size (employees)
WarszawaLargest hub · 194 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
105
11-50
67
51-200
12
201-500
7
1,001-5,000
1
5,001-10,000
1

Email recency for this list is measured across the whole Poland list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Warszawa, over 194 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 professional services 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 Warszawa, Poland whose own description of what they do matches “professional services 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 professional services firms, and records with no verified work email. Companies headquartered outside Warszawa 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, 1,771 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.

Professional services firms by metro in Poland

Frequently asked

How many professional services firms are there based in Warszawa, Poland?

RevenueBase identified 194 professional services firms headquartered in Warszawa, 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?

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

Which city has the most professional services firms?

Warszawa leads with 194 headquartered companies, followed by Wroclaw (89) and Poznan (77).

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 1,771 verified decision-maker contacts tracked across these 194 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.

Ready to reach these companies? Verified emails and direct dials for all 194 professional services firms based in Warszawa, Poland. Start with a free account, no credit card.

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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.