Company lists · Data verified August 2026

Top 20 Constitutional law firms based in Poland

There are 130 constitutional law firms headquartered in Poland (RevenueBase, August 2026). RevenueBase tracks 425 professional contacts across them, including 116 with verified work emails and 21 with mobile numbers. Warszawa is the largest hub.

This list covers constitutional 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.

130Companies
425Contacts tracked
116Verified emails
21Mobile numbers
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The 20 largest constitutional law firms based in Poland

Ranked by team size
Top 20 of 130 constitutional 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.
#CompanyHQEmployeesContactsVerified emails
1Kopeć & Zaborowski KKZWarszawa51-2006340
2Romanowski I WspólnicyWarszawa11-502816
3Jabłoński KoźmińskiWarszawa11-502814
4Jaśkiewicz, Papierska Kancelaria Adwokacka S.CPoznan11-50102
5Kdlegal Kancelaria Radcy Prawnego Krzysztof DanielakLublin1-1083
6Kancelaria Hantke&piskorPoznan11-5074
7SK Lawyers Rafał W. Sikorski I Daria Krzyżanowska Sp. PWarszawa1-1065
8Lewcio & Marciniak Kancelaria Prawna S.CWarsaw11-5063
9Kjks Kulińscy Jaczewska SyzdółWarszawa11-5062
10Wójcik NoworytaKrakow11-5054
11DCA Dziekański Chowaniec AJSWarszawa1-1052
12Smok Kancelaria Prawna K-Smok.PlKatowice11-5043
13Białek Tomicki I Partnerzy S.K.AWarsaw1-1042
14MGM AdwokaciWarszawa1-1041
15Knapek Rybczynski Szmit I Partnerzy Kancelaria AdwokackaKatowice1-1033
16Kancelaria Adwokacka Adwokat Jakub ŻAKPruszcz Gdanski1-1033
17Kancelaria Prawna Mecenat Warszawski Cieszkowska DUL Sp.KWola11-5031
18Kancelaria Adwokacka Bystrzejewski HOP TyblewskiKatowice1-1021
19DAP Kancelaria Prawna Business & LAW FirmWarszawa1-1021
20Steidler, Luty, AdamskiKrakow1-1021

Showing 20 of 130 constitutional law firms based in Poland

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Constitutional law firms based in Poland at a glance

As of Aug 28, 2026
1-10Median size (employees)
WarszawaLargest hub · 35 HQs
21Contacts with mobile numbers
0Emails re-verified in last 30 days

Companies by employee count

1-10
97
11-50
24
51-200
3

Constitutional law firms by metro

MetroCompanies
Constitutional law firms in Warszawa35
Constitutional law firms in Wroclaw13
Constitutional law firms in Krakow12
Constitutional law firms in Katowice8
Constitutional law firms in Poznan6
Constitutional law firms in Gdansk5
Constitutional law firms in Lodz4

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 “constitutional 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; 0 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 constitutional law firms are there based in Poland?

There are 130 constitutional law firms headquartered in Poland as of August 2026 (RevenueBase).

What is the largest company on this list?

Kopeć & Zaborowski KKZ, headquartered in Warszawa, tops this list with the largest team on record.

Which city has the most constitutional law firms?

Warszawa leads with 35 headquartered companies, followed by Wroclaw (13) and Krakow (12).

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 116 verified decision-maker contacts tracked across these 130 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.