Company lists · Data refreshed September 2026

Top 24 Mergers and acquisitions law firms based in Luxembourg

Name: Mergers and acquisitions law firms based in Luxembourg
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 51 companies tracked

RevenueBase identified 51 mergers and acquisitions law firms headquartered in Luxembourg as of September 2026 and tracks 624 professional contacts across them, including 228 with verified work emails and 6 with mobile numbers. Luxembourg is the largest hub.

This list covers mergers and acquisitions law firms headquartered in Luxembourg, 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

51Companies

624Contacts tracked

228Verified emails

6Mobile numbers

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The 24 largest mergers and acquisitions law firms based in Luxembourg

Ranked by team size

Top 24 of 51 mergers and acquisitions law firms based in Luxembourg, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names mergers and acquisitions law 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.
#	Company	Headquarters	Employees	Contacts
1	Kleyr GrassoPartial evidence	Strassen, LuxembourgHQ checked Sep 5, 2026	51-200	81
	“KLEYR_GRASSO is an independent full-service law firm specializing in business law and litigation, serving international and domestic clients for 30 years in Luxembourg with the…” Source: company website · checked Sep 5, 2026
2	DLA Piper In LuxembourgIndirect evidence	LuxembourgHQ checked Sep 5, 2026	51-200	62
	“Practical and innovative legal advice regarding any transaction either domestic or multi-national.” Source: company website · checked Sep 5, 2026
3	Brucher Thieltgen & PartnersIndirect evidence	LuxembourgHQ checked Sep 5, 2026	11-50	52
	“Brucher Thieltgen & Partners, a legal practice established in Luxembourg City at the heart of the international financial centre, is a multidisciplinary boutique firm active in…” Source: company website · checked Sep 5, 2026
4	Baker Mckenzie LuxembourgIndirect evidence	LuxembourgHQ checked Sep 5, 2026	51-200	46
	“Based in one of the world's most important financial and holding centers, our Luxembourg office advises clients on major cross-border financings, transactions and investment…” Source: company website · checked Sep 5, 2026
5	Brouxel & Rabia, Luxembourg LAW FirmPartial evidence	LuxembourgHQ checked Sep 5, 2026	11-50	24
	“Brouxel & Rabia Luxembourg Law Firm ("B&R") is an independent business law firm, ventured by two of the most senior and most successful partners in Luxembourg, Samia RABIA &…” Source: company website · checked Sep 5, 2026
6	Wildgen, Luxembourg LAW FirmPartial evidence	L-, LuxembourgHQ checked Sep 5, 2026	51-200	20
	“Since 1923, WILDGEN has been at the heart of law practice in Luxembourg.” Source: company website · checked Sep 5, 2026
7	CM LAWPartial evidence	LuxembourgHQ checked Sep 5, 2026	11-50	13
	“At CM Law, we offer more than just legal expertise – we provide a long-term and cost-efficient relationship tailored to your needs.” Source: company website · checked Sep 5, 2026
8	Tenzing PartnersIndirect evidence	LuxembourgHQ checked Sep 5, 2026	1-10	11
	“Tenzing Partners is an active member of Globalscope, the international M&A advisor network of independent M&A boutiques dedicated to midcaps.” Source: company website · checked Sep 5, 2026
9	VandenbulkePartial evidence	LuxembourgHQ checked Sep 5, 2026	1-10	10
	“VANDENBULKE is an independent law firm specialising in two core practices: corporate and M&A and banking & finance.” Source: company website · checked Sep 5, 2026
10	Dupont PartnersIndirect evidence	LuxembourgHQ checked Sep 5, 2026	11-50	9
	“Dupont Partners serve as a critical partner to plan and execute its clients’ strategies and objectives.” Source: company website · checked Sep 5, 2026
11	LexfieldPartial evidence	LuxembourgHQ checked Sep 5, 2026	11-50	9
	“LexField is an independent business law firm based in the Grand Duchy of Luxembourg.” Source: company website · checked Sep 5, 2026
12	Praxio LAW & TAXPartial evidence	Gelle, LuxembourgHQ checked Sep 5, 2026	11-50	8
	“Tax-Corporate-M&A-Funds-Banking & Finance -Fund Financing Your Luxembourg Boutique Law Firm” Source: company website · checked Sep 5, 2026
13	Juridex, Avocats À LA CourIndirect evidence	LuxembourgHQ checked Sep 5, 2026	1-10	8
	“Créée en 2014, JuRiDex, Avocats à la Cour est une étude d’avocats dédiée au contentieux d'affaires ainsi qu'à la création et au conseil des petites et moyennes entreprises.” Source: company website · checked Sep 5, 2026
14	Vertumnus LawyersPartial evidence	LuxembourgHQ checked Sep 5, 2026	1-10	7
	“Based in Luxembourg, we are an independent full service law firm.” Source: company website · checked Sep 5, 2026
15	ThecatalystsIndirect evidence	LuxembourgHQ checked Sep 5, 2026	1-10	5
	“theCatalysts is a management consulting and transactions advisory firm providing high quality support based on a 25+ year experience, in order to secure the most delicate missions.” Source: company website · checked Sep 5, 2026
16	PWC Legal LuxembourgPartial evidence	LuxembourgHQ checked Sep 5, 2026	51-200	5
	“PwC Legal is one of the most renowned law firms in Luxembourg, employing around 60 people and offering legal advice in the following areas: Corporate Law, Corporate Restructuring…” Source: company website · checked Sep 5, 2026
17	Sagnard & AssociesPartial evidence	LuxembourgHQ checked Sep 5, 2026	1-10	5
	“Sagnard & Associés is an independent full service law firm, established in the Grand Duchy of Luxembourg since 2008 with a strong focus on the financial and business community.” Source: company website · checked Sep 5, 2026
18	InfueroPartial evidence	LuxembourgHQ checked Sep 5, 2026	1-10	5
	“A law firm to help the company achieve its objectives and defend its interests.” Source: company website · checked Sep 5, 2026
19	CASPartial evidence	LuxembourgHQ checked Sep 5, 2026	1-10	4
	“Luxembourg Independent Business Law Firm” Source: company website · checked Sep 5, 2026
20	AkceanPartial evidence	Capellen, LuxembourgHQ checked Sep 5, 2026	1-10	4
	“AKCEAN est un cabinet de conseil spécialisé en fusion-acquisition (M&A).” Source: company website · checked Sep 5, 2026
21	Rodricks S.AIndirect evidence	LuxembourgHQ checked Sep 5, 2026	1-10	3
	“Rodricks is a private independent firm based in the Grand Duchy of Luxembourg serving the interests of its Private, Corporate and Institutional clients.” Source: company website · checked Sep 5, 2026
22	M&s LAW FirmPartial evidence	LuxembourgHQ checked Sep 5, 2026	11-50	1
	“M&S Law Firm is an independent Luxembourg law firm that has matured into an established key firm in Luxembourg since its foundation.” Source: company website · checked Sep 5, 2026
23	Pierre Thielen AvocatsPartial evidence	LuxembourgHQ checked Sep 5, 2026	11-50	1
	“Pierre Thielen Avocats is an independent boutique law firm focusing on high-end legal services.” Source: company website · checked Sep 5, 2026
24	Gervais LAW Firm LuxembourgPartial evidence	Fentange, LuxembourgHQ checked Sep 5, 2026	1-10	1
	“Gervais Law Firm - Luxembourg est une étude d’avocat spécialisée en droit commercial, droit des sociétés, droit bancaire et des assurances.” Source: company website · checked Sep 5, 2026

Showing 24 of 51 mergers and acquisitions law firms based in Luxembourg

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Mergers and acquisitions law firms based in Luxembourg at a glance

As of Sep 5, 2026

1-10Median size (employees)

LuxembourgLargest hub · 43 HQs

6Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

214

31–60

61–90

90–180

180+

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 mergers and acquisitions law 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 Luxembourg whose own description of what they do matches “mergers and acquisitions law 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 mergers and acquisitions law firms, and records with no verified work email. Companies headquartered outside Luxembourg 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, 228 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.

Mergers and acquisitions law firms by metro

Mergers and acquisitions law firms in Luxembourg43

Frequently asked

How many mergers and acquisitions law firms are there based in Luxembourg?

RevenueBase identified 51 mergers and acquisitions law firms headquartered in Luxembourg 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?

Kleyr Grasso, headquartered in Strassen, tops this list with the largest team on record.

Which city has the most mergers and acquisitions law firms?

Luxembourg leads with 43 headquartered companies, followed by Capellen (1) and Fentange (1).

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 228 verified decision-maker contacts tracked across these 51 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.

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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.