Company lists · Data refreshed September 2026

Top 25 Merger acquisition law firms based in Warsaw, Poland

RevenueBase identified 58 merger acquisition law firms headquartered in Warsaw, Poland as of September 2026 and tracks 755 professional contacts across them, including 405 with verified work emails. Across Poland, Warszawa is the largest hub for this category (122 companies); Warsaw follows with 58.

This list covers merger acquisition law firms headquartered in Warsaw, 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 28, 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 28, 2026 86% judged on-target in blind review
58Companies
755Contacts tracked
405Verified emails
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The 25 largest merger acquisition law firms based in Warsaw, Poland

Ranked by team size
Top 25 of 58 merger acquisition law firms based in Warsaw, Poland, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to merger acquisition law firms: 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 28, 2026201-500120 contacts →

Indirect evidence

“Poland remains one of Europe’s fastest-growing economies, attracting record levels of investment and driving landmark M&A and corporate finance activity.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceWarsaw, PolandHQ checked Sep 28, 202651-200114 contacts →

Partial evidence

“GESSEL is one of the leading law firms in the Polish market.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceWarsaw, PolandHQ checked Sep 28, 2026201-50071 contacts →

Indirect evidence

“formerly known as act BSWW legal & tax, has been building its reputation among Polish and international clients for over two decades.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5045 contacts →

Partial evidence

“Founded in 2020 by a group of experienced business lawyers, MJH offers comprehensive legal services in the areas of- civil and commercial law- private and public M&A- competition…”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5031 contacts →

Partial evidence

“TGC Corporate Lawyers is an international law firm that offers clients comprehensive legal advisory while supporting development and security of their business.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202611-5028 contacts →

Indirect evidence

“2014 🤝 At KRK, we specialise in providing high-quality legal services tailored to the unique needs of businesses, based on understanding of the industries in which they operate.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202611-5024 contacts →

Indirect evidence

“CP provides legal, compliance and transactional advisory support.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5024 contacts →

Partial evidence

“MFW Fiałek – M&A law firm in Poland MFW Fiałek is an M&A and transactional law firm based in Warsaw, Poland.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5024 contacts →

Partial evidence

“The Pietrzak Sidor & Partners Law Firm was founded in 2007 by advocate Mikołaj Pietrzak and legal advisor Artur Sidor.”

Source: RevenueBase Database · checked Sep 28, 2026
10Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5017 contacts →

Partial evidence

“DESTRIER is a dynamic law firm based In Warsaw.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5014 contacts →

Partial evidence

“Law firm fully focused on helping clients succeed in business, providing highest-quality, results-oriented legal advice.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“LEGALLY.SMART Latymowicz, Liżewski, Tkaczyk Kancelaria Adwokatów i Radców Prawnych sp.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-5010 contacts →

Partial evidence

“Lawsome is a boutique Law Firm with 10 years of experience, which specializes in particular in- investment processes for VC & PE funds, transactions (M&A), and transformation…”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Kancelaria została stworzona przez Matyldę Juzalę oraz Jakuba Salwę.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Legal problems will not resolve themselves.”

Source: RevenueBase Database · checked Sep 28, 2026
16Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-109 contacts →

Indirect evidence

“Lawarton – business lawyers Lawarton jest kancelarią prawną specjalizująca się w obsłudze biznesu.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“We help companies keep their business safe and get the best out of new market opportunities.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceWarsaw, PolandHQ checked Sep 28, 20261-108 contacts →

Partial evidence

“SEEWALD Attorneys is a Warsaw based independent law firm which provides top quality tailor-made and customized legal advice on the most commercial and other matters that our…”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceWarsaw, PolandHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

“Kancelaria prawna Lewcio & Marciniak zajmuje się kompleksową obsługą prawną klientów biznesowych i indywidualnych.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

“We are a team of experienced lawyers and business advisors.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceWarsaw, PolandHQ checked Sep 28, 20261-106 contacts →

Partial evidence

“BB Law Firm is a modern boutique law firm located in Warsaw providing highly specialised and tailored legal advice in relation to all types of financing (property finance…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Kancelaria prawna dla biznesu.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Grzesiak and Partners Sp.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceWarsaw, PolandHQ checked Sep 28, 20261-103 contacts →

Indirect evidence

“Welcome to Lasanoz Finance, an M&A and corporate finance boutique firm with a dedicated advisory team.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceWarsaw, PolandHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“SSK & W is a Polish law firm, founded in 2021 and based in Warsaw, Poland.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 58 merger acquisition law firms based in Warsaw, Poland

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Merger acquisition law firms based in Warsaw, Poland at a glance

As of Sep 28, 2026
53.6%Verified-email coverage
13.0Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
31
11-50
20
51-200
4
201-500
3

Email recency for this list is measured across the whole Poland list rather than for Warsaw, so it is reported there. Company counts and contact totals on this page are exact for Warsaw, over 58 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 merger acquisition law firms, 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 Warsaw, Poland whose own description of what they do matches “merger acquisition law firms”. 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 merger acquisition law firms), 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 merger acquisition law firms, and records with no verified work email. Companies headquartered outside Warsaw 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, 405 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 28, 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.

Merger acquisition law firms by metro in Poland

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 merger acquisition law firms, 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 merger acquisition law firms are there based in Warsaw, Poland?

RevenueBase identified 58 merger acquisition law firms headquartered in Warsaw, 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?

Baker Mckenzie Polska, headquartered in Warsaw, tops this list with the largest team on record.

Which city in Poland has the most merger acquisition law firms?

Warszawa leads Poland with 122 headquartered companies, followed by Warsaw (58) and Krakow (40).

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 405 verified decision-maker contacts tracked across these 58 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 28, 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.