Company lists · Data refreshed 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 Data refreshed Aug 31, 2026 77 companies tracked

RevenueBase identified 77 constitutional law firms headquartered in Switzerland as of August 2026 and 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

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 refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to constitutional 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Landmann & Partner	Indirect evidence	Zurich, Switzerland	11-50	14 contacts →
	Indirect evidence “Das Anwaltsbüro Landmann wurde 1984 zunächst als Einzelbüro eröffnet und im Laufe der Jahrzehnte stetig ausgebaut.” Source: RevenueBase Database · checked Aug 31, 2026
2	Advokatur West	Indirect evidence	Zurich, Switzerland	11-50	14 contacts →
	Indirect evidence “Wir beraten, begleiten und prozessieren in den folgenden Rechtsgebieten: Arbeitsrecht, Öffentliches Personalrecht, Privates Baurecht, Öffentliches Beschaffungswesen…” Source: RevenueBase Database · checked Aug 31, 2026
3	Schiller Rechtsanwälte AG	Indirect evidence	Winterthur, Switzerland	11-50	12 contacts →
	Indirect evidence “Die Anwaltskanzlei in Winterthur SCHILLER RECHTSANWÄLTE sind aus einem 1875 gegründeten Winterthurer Anwaltsbüro hervorgegangen.” Source: RevenueBase Database · checked Aug 31, 2026
4	Rechtskraft Advokatur	Indirect evidence	Zurich, Switzerland	11-50	12 contacts →
	Indirect evidence “Rechtskraft besteht aus einem Team von Top-Anwälten und Anwältinnen mit besten Qualifikationen und Fachanwaltstiteln.” Source: RevenueBase Database · checked Aug 31, 2026
5	Banna & Quinodoz	Indirect evidence	Geneve, Switzerland	1-10	11 contacts →
	Indirect evidence “BANNA & QUINODOZ a été fondée sous l’impulsion de Mes Pierre BANNA et Raphaël QUINODOZ.” Source: RevenueBase Database · checked Aug 31, 2026
6	Team Legal SA	Partial evidence	Lugano, Switzerland	11-50	9 contacts →
	Partial evidence “TEAM LEGAL SA (former Respini Jelmini Beretta Piccoli) is one of the fastest growing law firms based in Ticino.” Source: RevenueBase Database · checked Aug 31, 2026
7	Studer Anwälte UND Notare AG	Indirect evidence	Frick, Switzerland	11-50	8 contacts →
	Indirect evidence “Auf unsere Fachkompetenz ist seit über 40 Jahren Verlass.” Source: RevenueBase Database · checked Aug 31, 2026
8	Amparo Anwälte UND Notare	Indirect evidence	St. Gallen, Switzerland	11-50	7 contacts →
	Indirect evidence “Wir sind fachlich versierte und erfahrene Rechtsanwältinnen und Rechtsanwälte.” Source: RevenueBase Database · checked Aug 31, 2026
9	Hofmann Gehler Schmidlin & Partner Rechtsanwälte UND Notare KLG	Indirect evidence	St.Gallen, Switzerland	1-10	6 contacts →
	Indirect evidence “Dr.” Source: RevenueBase Database · checked Aug 31, 2026
10	Balex AG	Indirect evidence	Rheinfelden, Switzerland	11-50	6 contacts →
	Indirect evidence “Unsere Philosophie: Unternehmerisches und vernetztes Denken geniessen bei uns oberste Priorität.” Source: RevenueBase Database · checked Aug 31, 2026
11	Etude DE Palma & Fontana	Indirect evidence	Sion, Switzerland	11-50	6 contacts →
	Indirect evidence “L’Etude d'avocats De Palma & Fontana a pour activité la pratique du barreau, à savoir le conseil et l’assistance à ses clients et leur représentation devant les autorités…” Source: RevenueBase Database · checked Aug 31, 2026
12	LNA Langer-Netter-Adler Avocats	Indirect evidence	Geneve, Switzerland	11-50	5 contacts →
	Indirect evidence “LNA is an independent organization that advises, assists and defends industry groups, corporations, insurance companies, small businesses, executives and individuals, in France…” Source: RevenueBase Database · checked Aug 31, 2026
13	Marghitola Dispute Resolution	Partial evidence	Zurich, Switzerland	1-10	5 contacts →
	Partial evidence “Marghitola Dispute Resolution is a Zurich-based law firm with a focus on commercial litigation and criminal law.” Source: RevenueBase Database · checked Aug 31, 2026
14	VZ Lawyers	Indirect evidence	Geneve, Switzerland	11-50	4 contacts →
	Indirect evidence “Welcome to VZ Lawyers – Your Premier Legal Advocates At VZ Lawyers, we are committed to providing top-tier legal services tailored to your unique needs.” Source: RevenueBase Database · checked Aug 31, 2026
15	Bloch Avocats	Indirect evidence	Yverdon, Switzerland	1-10	4 contacts →
	Indirect evidence “Fondée en 2014 par Me Olivier Bloch, avocat associé, Bloch Avocats dispose d’une excellente connaissance des institutions locales et régionales tout en bénéficiant d’un fort…” Source: RevenueBase Database · checked Aug 31, 2026
16	Etude Delta	Indirect evidence	Monthey, Switzerland	1-10	4 contacts →
	Indirect evidence “L’Etude DELTA est composée d’avocat-e-s expérimenté-e-s, issu-e-s de plusieurs générations, chacun reconnu dans ses domaines de prédilection.” Source: RevenueBase Database · checked Aug 31, 2026
17	Michlig Knutti Partner AG	Indirect evidence	Zurich, Switzerland	1-10	3 contacts →
	Indirect evidence “Michlig Knutti Partner AG ist ein Zusammenschluss von mehreren Rechtsanwälten mit langjähriger juristischer Erfahrung in Zürich.” Source: RevenueBase Database · checked Aug 31, 2026
18	Umbricht Advisory	Partial evidence	Zurich, Switzerland	1-10	3 contacts →
	Partial evidence “UMBRICHT ADVISORY in Strategic Legal and Public Affairs The law firm provides to its domestic and international clients comprehensive legal advice in complex matters of private…” Source: RevenueBase Database · checked Aug 31, 2026
19	Advokatur Staub AG	Indirect evidence	St. Gallen, Switzerland	1-10	3 contacts →
	Indirect evidence “Die Advokatur Staub AG ist eine auf die Beratung von öffentlich-rechtlichen Körperschaften und Institutionen spezialisierte Anwaltskanzlei in der Ostschweiz” Source: RevenueBase Database · checked Aug 31, 2026
20	LEX Avocats	Indirect evidence	Geneve, Switzerland	1-10	3 contacts →
	Indirect evidence “Des services hautement professionnels dans un cadre artisanal et personnalisé L’étude @lex avocats est né de la conviction partagée par ses fondateurs, Alec REYMOND et Alexandra…” Source: RevenueBase Database · checked Aug 31, 2026
21	Etude Gonzalez & Chatagny	Indirect evidence	Bulle, Switzerland	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
22	Gabellon Legal LLC	Indirect evidence	Geneve, Switzerland	1-10	3 contacts →
	Indirect evidence “Gabellon Legal LLC est une Étude d’avocats spécialisée en droit privé, ainsi qu’en droit des associations et des fondations.” Source: RevenueBase Database · checked Aug 31, 2026
23	Étude D'avocats Boudry & Arnouni	Indirect evidence	Lausanne, Switzerland	1-10	3 contacts →
	Indirect evidence “Étude d'avocats active dans les domaines du droit de la famille, du droit des contrats, du droit pénal et du droit administratif et public.” Source: RevenueBase Database · checked Aug 31, 2026
24	Losinger Rechtsanwälte	Indirect evidence	Zurich, Switzerland	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
25	Areum Rechtsanwälte AG	Indirect evidence	Chur, Switzerland	1-10	3 contacts →
	Indirect evidence “Die Areum Rechtsanwälte AG unterstützt Sie im öffentlichen Bau, Planungs- und Zweitwohnungsrecht sowie Scheidung, Trennung, Vertrags- und Strafrecht.” Source: RevenueBase Database · checked Aug 31, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: constitutional law firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names constitutional law firms.
Partial evidence: Its own public description names part of constitutional law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name constitutional law firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

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 31, 2026

27.6%Verified-email coverage

1.2%Mobile-number coverage

4.3Average contacts per company

1-10Median size (employees)

19.5%Largest-city concentration · Zurich

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 constitutional 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 Switzerland whose own description of what they do matches “constitutional 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 constitutional 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 constitutional law firms, and records with no verified work email. Companies headquartered outside Switzerland 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, 92 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 August 31, 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.

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 constitutional 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 constitutional law firms are there based in Switzerland?

RevenueBase identified 77 constitutional law firms headquartered in Switzerland as of August 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?

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 refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.