Company lists · Data verified August 2026

Top 25 Antitrust law firms based in Poland

Name: Antitrust law firms based in Poland
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 247 companies tracked

There are 247 antitrust law firms headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 1,576 professional contacts across them, including 537 with verified work emails and 38 with mobile numbers. Warszawa is the largest hub.

This list covers antitrust law firms headquartered in Poland, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

247Companies

1,576Contacts tracked

537Verified emails

38Mobile numbers

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The 25 largest antitrust law firms based in Poland

Ranked by team size

Top 25 of 247 antitrust law firms based in Poland, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Gessel Attorneys At LAW	Warsaw	51-200	115	69
2	SMM Legal	Poznan Wielkopolska	51-200	73	31
3	Kancelaria Sobota Jachira	Wroclaw	51-200	72	33
4	Kopeć & Zaborowski KKZ	Warszawa	51-200	63	40
5	Kancelaria Prawna Graś I Wspólnicy	Warszawa	51-200	56	9
6	MJH Moskwa, Jarmul, Haładyj I Partnerzy	Poznan	11-50	44	33
7	Kancelaria Szip	Katowice	51-200	39	26
8	KRK Kieszkowska Rutkowska Kolasiński	Warsaw	11-50	26	16
9	SKP Ślusarek Kubiak Pieczyk	Sopot	11-50	25	15
10	Markiewicz Sroczyński Mioduszewski GP	n/a	11-50	21	10
11	SDO Legal	Szczecin	11-50	20	8
12	Wojcieszak, Basiński I Wspólnicy Kancelaria Adwokacka Sp.K	Poznan	11-50	18	10
13	BCGL	n/a	11-50	17	11
14	Meld Jodłowski Szczawiński I Partnerzy Radcowie Prawni I Adwokaci	Krakow	11-50	17	9
15	Polowiec I Wspólnicy Sp.J	Krakow	11-50	16	9
16	Affre I Wspólnicy Sp. K	Warszawa	11-50	15	12
17	Skjb Szybkowski Kuźma Jeleń Brzoza-Ostrowska	Warsaw	11-50	15	9
18	Kancelaria Jedliński, Bierecki I Wspólnicy	Gdynia	51-200	15	1
19	legally.smart	Warsaw	11-50	13	4
20	Kaczor Klimczyk Pucher Wypiór	Warszawa	11-50	12	6
21	Masiota	Poznan	11-50	11	8
22	Kancelaria Prawna Żydek Pliszka I Wspólnicy Sp.K	Wroclaw	11-50	11	7
23	Połomski Kłobuchowski Radcowska Spółka Komandytowo-Akcyjna	Poznan	11-50	11	6
24	AD Casum	Warszawa	11-50	10	7
25	Babiaczyk Skrocki I Wspólnicy	Poznan	11-50	10	5

Showing 25 of 247 antitrust law firms based in Poland

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Antitrust law firms based in Poland at a glance

As of Aug 28, 2026

1-10Median size (employees)

WarszawaLargest hub · 66 HQs

38Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

158

11-50

51-200

201-500

Antitrust law firms by metro

Metro	Companies
Antitrust law firms in Warszawa	66
Antitrust law firms in Poznan	25
Antitrust law firms in Warsaw	23
Antitrust law firms in Krakow	19
Antitrust law firms in Wroclaw	19
Antitrust law firms in Katowice	14
Antitrust law firms in Lodz	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “antitrust law firms”, with match quality audited by blind human judging, and headquartered in Poland.
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: Contact records re-verify on a rolling cadence; 3 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many antitrust law firms are there based in Poland?

There are 247 antitrust law firms headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

Gessel Attorneys At LAW, headquartered in Warsaw, tops this list with the largest team on record.

Which city has the most antitrust law firms?

Warszawa leads with 66 headquartered companies, followed by Poznan (25) and Warsaw (23).

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 537 verified decision-maker contacts tracked across these 247 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.