Company lists · Data verified August 2026

Top 25 Constitutional law firms based in Switzerland

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 77 companies tracked

There are 77 constitutional law firms headquartered in Switzerland (RevenueBase, August 2026). RevenueBase tracks 333 professional contacts across them, including 92 with verified work emails and 4 with mobile numbers. Zurich is the largest hub.

This list covers constitutional law firms headquartered in Switzerland, 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.

77Companies

333Contacts tracked

92Verified emails

4Mobile numbers

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The 25 largest constitutional law firms based in Switzerland

Ranked by team size

Top 25 of 77 constitutional law firms based in Switzerland, 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	Landmann & Partner	Zurich	11-50	14	11
2	Advokatur West	Zurich	11-50	14	5
3	Schiller Rechtsanwälte AG	Winterthur	11-50	12	10
4	Rechtskraft Advokatur	Zurich	11-50	12	8
5	Banna & Quinodoz	Geneve	1-10	11	4
6	Team Legal SA	Lugano	11-50	9	6
7	Studer Anwälte UND Notare AG	Frick	11-50	8	4
8	Amparo Anwälte UND Notare	St. Gallen	11-50	7	2
9	Hofmann Gehler Schmidlin & Partner Rechtsanwälte UND Notare KLG	St.Gallen	1-10	6	3
10	Balex AG	Rheinfelden	11-50	6	2
11	Etude DE Palma & Fontana	Sion	11-50	6	2
12	LNA Langer-Netter-Adler Avocats	Geneve	11-50	5	3
13	Marghitola Dispute Resolution	Zurich	1-10	5	2
14	VZ Lawyers	Geneve	11-50	4	4
15	Bloch Avocats	Yverdon	1-10	4	3
16	Etude Delta	Monthey	1-10	4	1
17	Michlig Knutti Partner AG	Zurich	1-10	3	3
18	Umbricht Advisory	Zurich	1-10	3	2
19	Advokatur Staub AG	St. Gallen	1-10	3	2
20	LEX Avocats	Geneve	1-10	3	2
21	Etude Gonzalez & Chatagny	Bulle	1-10	3	1
22	Gabellon Legal LLC	Geneve	1-10	3	1
23	Étude D'avocats Boudry & Arnouni	Lausanne	1-10	3	1
24	Losinger Rechtsanwälte	Zurich	1-10	3	1
25	Areum Rechtsanwälte AG	Chur	1-10	3	1

Showing 25 of 77 constitutional law firms based in Switzerland

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Constitutional law firms based in Switzerland at a glance

As of Aug 28, 2026

1-10Median size (employees)

ZurichLargest hub · 15 HQs

4Contacts with mobile numbers

1Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

Constitutional law firms by metro

Metro	Companies
Constitutional law firms in Zurich	15
Constitutional law firms in Geneve	14
Constitutional law firms in Lausanne	7
Constitutional law firms in Neuchatel	3
Constitutional law firms in Lugano	3
Constitutional law firms in Sankt Gallen	2
Constitutional law firms in Sion	2
Constitutional law firms in St. Gallen	2

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 Switzerland.
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; 1 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 Switzerland?

There are 77 constitutional law firms headquartered in Switzerland as of August 2026 (RevenueBase).

What is the largest company on this list?

Landmann & Partner, headquartered in Zurich, tops this list with the largest team on record.

Which city has the most constitutional law firms?

Zurich leads with 15 headquartered companies, followed by Geneve (14) and Lausanne (7).

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 92 verified decision-maker contacts tracked across these 77 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.