Company lists · Data refreshed August 2026
Top 25 Constitutional law firms based in France
RevenueBase identified 341 constitutional law firms headquartered in France as of August 2026 and tracks 1,905 professional contacts across them, including 417 with verified work emails and 40 with mobile numbers. Paris is the largest hub.
This list covers constitutional law firms headquartered in France, 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.
The 25 largest constitutional law firms based in France
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 63 contacts → | ||||
Indirect evidence “La SELARL d'Avocats LEXCAP est née de la fusion de six cabinets - le cabinet Jean Beucher & Associés, créé en 1926, ayant une activité dans tous les domaines du contentieux- le…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 2 | 30 contacts → | ||||
Indirect evidence “Cabinet d'Avocat au Conseil d'Etat et à la Cour de cassation, la SCP SPINOSI est composée d'un avocat aux Conseils et d'une vingtaine d'avocats à la Cour.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 3 | 27 contacts → | ||||
Indirect evidence “Decker est un cabinet d’avocats créé en 1971.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 4 | 27 contacts → | ||||
Indirect evidence “Forte de plusieurs décennies d’expérience et de succès depuis sa création, l’association Lombard Baratelli Astolfe & associés est l’un des acteurs incontournables du paysage…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 5 | 25 contacts → | ||||
Indirect evidence “Animé par la passion d’accompagner ses clients dans leur volonté d’entreprendre, le Cabinet ATMOS Avocats est un cabinet porté par les compétences d’une quinzaine d’avocats, et…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 6 | 24 contacts → | ||||
Indirect evidence “NOVLAW AVOCATS offre un accompagnement global en droit des affaires, droit immobilier, droit public et compliance.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 7 | 23 contacts → | ||||
Indirect evidence “Cabinet d'Avocats créé en 1957 par André Boulan, la SCP Inter-Barreaux Boulan Koerfer Perrault & Associés est un cabinet d'avocats multi spécialistes implanté à Versailles et à…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 8 | 21 contacts → | ||||
Indirect evidence “Seattle Avocats est une société d'avocats exerçant dans les domaines du droit pénal (des personnes, des affaires, de la presse, de l'environnement), du droit de la communication…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 9 | 19 contacts → | ||||
Indirect evidence “Notre cabinet, créé en 1948, a toujours été soucieux d’offrir à ses clients une multiplicité de compétences juridiques et judiciaires : droit des affaires et droit commercial /…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 10 | 18 contacts → | ||||
Indirect evidence “Le cabinet CLL Avocats est composé d'une vingtaine d'avocats inscrits au barreau de Paris, dont trois associés : Olivier CARON, Alexandre LABETOULE et Erwan LAZENNEC.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 11 | 17 contacts → | ||||
Indirect evidence “Le cabinet assure la représentation et la défense de ses clients - entreprises, administrations, particuliers - devant le Conseil d’État et la Cour de cassation.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 contacts → | ||||
Indirect evidence “Le cabinet Boré, Salve de Bruneton et Mégret offre à ses clients une représentation de premier ordre devant le Conseil d’État et la Cour de cassation.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 13 | 14 contacts → | ||||
Indirect evidence “Lafayette Avocats est un cabinet d’Avocats inscrits aux Barreaux de Toulouse, Albi, Bordeaux et Paris Constitué de 13 Avocats, le cabinet intervient en droit commercial, droit…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 14 | 11 contacts → | ||||
Indirect evidence “Le cabinet JURIADIS Avocats à Cherbourg, Caen, La Haye, Coutances, Paris et Toulouse, regroupe l’ensemble des compétences nécessaires pour répondre aux besoins de nos clients…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 contacts → | ||||
Indirect evidence “Cabinet d'avocats au Conseil d'Etat et à la Cour de cassation, intervenant devant les Hautes juridictions dans tous les domaines du droit.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 16 | 11 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 contacts → | ||||
Indirect evidence “Situé dans le centre-ville de Lyon, le Cabinet Quorum Avocats est né d'une volonté de synergie entre ses associés et d'un fort désir d'entreprendre.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Indirect evidence “Ecouter, comprendre, défendre : telle est la devise du cabinet qui, depuis 1981, propose à travers une équipe d’avocats qui exercent des activités dominantes différentes, des…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 contacts → | ||||
Partial evidence “ANTELIS is a law office Cabinet d'Avocats” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Indirect evidence “Le Cabinet des Jacobins a été créé en 1973.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 contacts → | ||||
Indirect evidence “Cabinet d'avocats indépendant dédié aux dossiers à forts enjeux Carve concentre son activité autour de matières stratégiques pour les entreprises et leurs dirigeants : droit de la…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 22 | 8 contacts → | ||||
Indirect evidence “Le cabinet CHOLEY & VIDAL Avocats est situé à Paris et Aix-en-Provence et se compose de trois associés (Me Thibaud VIDAL, Me Nicolas CHOLEY) ainsi que d'une équipe de…” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Indirect evidence “MCL Avocats est un cabinet inscrit depuis 2010 au Barreau de Marseille qui développe une activité fondée sur la technicité, le professionnalisme et la réactivité.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Indirect evidence “Cabinet d'avocats dédié à la pratique des contentieux privés et publics des affaires” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
| 25 | 6 contacts → | ||||
Indirect evidence “Le cabinet CARDIAN AVOCATS est un cabinet d'avocats situé à Paris dans le 8 ème arrondissement.” Source: RevenueBase Database · checked Aug 31, 2026Thanks. The Data Team will review it. | |||||
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 341 constitutional law firms based in France
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Constitutional law firms based in France at a glance
As of Aug 31, 2026Companies by employee count
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 France 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 France 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, 417 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.
Constitutional law firms by metro
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 France?
RevenueBase identified 341 constitutional law firms headquartered in France 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?
Lexcap, headquartered in Rennes, tops this list with the largest team on record.
Which city has the most constitutional law firms?
Paris leads with 119 headquartered companies, followed by Lyon (19) and Toulouse (19).
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 417 verified decision-maker contacts tracked across these 341 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.
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