Company lists · Data refreshed September 2026

Top 25 Architectural firms based in France

Name: Architectural firms based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 6,926 companies tracked

RevenueBase identified 6,926 architectural firms headquartered in France as of September 2026 and tracks 53,619 professional contacts across them, including 16,110 with verified work emails and 1,338 with mobile numbers. Paris is the largest hub.

This list covers architectural 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 September 6, 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 6, 2026 86% judged on-target in blind review

6,926Companies

53,619Contacts tracked

16,110Verified emails

1,338Mobile numbers

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The 25 largest architectural firms based in France

Ranked by team size

Top 25 of 6,926 architectural firms based in France, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to architectural 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	EGIS	Strong evidence	Saint-quentin-en-yvelines, FranceHQ checked Sep 6, 2026	10001+	11,641 contacts →
	Strong evidence “Egis is a leading global architectural, consulting, construction engineering, operations and mobility services firm.” Source: RevenueBase Database · checked Sep 6, 2026
2	BTP Consultants	Indirect evidence	Montigny-le-bretonneux, FranceHQ checked Sep 6, 2026	201-500	1,066 contacts →
	Indirect evidence “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Source: RevenueBase Database · checked Sep 6, 2026
3	AIA Life Designers	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	501-1,000	572 contacts →
	Strong evidence “Depuis 1965, AIA Life Designers porte la vision d’une architecture engagée pour le bien-être, l’environnement et la santé, qui fédère au sein d’une même structure les métiers…” Source: RevenueBase Database · checked Sep 6, 2026
4	Patriarche. Augmented Architecture	Indirect evidence	Le Bourget Du Lac, FranceHQ checked Sep 6, 2026	501-1,000	486 contacts →
	Indirect evidence “The company stands for a unique model to program, design, build and operate innovative environment.” Source: RevenueBase Database · checked Sep 6, 2026
5	Groupe Kardham	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	201-500	443 contacts →
	Indirect evidence “Parce que l’immobilier n’est pas immobile, Kardham co-construit le futur des villes, des entreprises et des organisations en maîtrisant les transformations.” Source: RevenueBase Database · checked Sep 6, 2026
6	LUSEO	Indirect evidence	Le Haillan, FranceHQ checked Sep 6, 2026	501-1,000	345 contacts →
	Indirect evidence “LUSEO is a multidisciplinary building design firm that provides highly specialized engineering and project administration services.” Source: RevenueBase Database · checked Sep 6, 2026
7	Setec Bâtiment	Indirect evidence	Paris Cedex 12, FranceHQ checked Sep 6, 2026	201-500	271 contacts →
	Indirect evidence “setec Batiment provides studies and project management of great buildings projects.” Source: RevenueBase Database · checked Sep 6, 2026
8	BEG Ingénierie	Indirect evidence	Orléans La Source, FranceHQ checked Sep 6, 2026	201-500	201 contacts →
	Indirect evidence “Our expertise at work to your real estate projects The whole team BEG Ingenierie wishes you.” Source: RevenueBase Database · checked Sep 6, 2026
9	Rpbw Renzo Piano Building Workshop	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	200 contacts →
	Strong evidence “The RPBW (Renzo Piano Building Workshop) is an international architectural practice with offices in Paris and Genoa.” Source: RevenueBase Database · checked Sep 6, 2026
10	RBC	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	174 contacts →
	Indirect evidence “RBC, vos nouveaux espaces de vie.” Source: RevenueBase Database · checked Sep 6, 2026
11	AST Groupe	Indirect evidence	Decines, FranceHQ checked Sep 6, 2026	n/a	170 contacts →
	Indirect evidence “Avec plus de 20 ans de savoir-faire et une triple expertise de constructeur, promoteur et aménageur, notre offre multimarques principalement dédiée à l’accession propose à nos…” Source: RevenueBase Database · checked Sep 6, 2026
12	Projex Ingénierie	Indirect evidence	Villeneuve D'ascq, FranceHQ checked Sep 6, 2026	201-500	158 contacts →
	Indirect evidence “GROUPE PROJEX spécialiste de l'ingénierie tous corps d'état en maîtrise d’œuvre de conception, d'exécution et d'exploitation.” Source: RevenueBase Database · checked Sep 6, 2026
13	Arte Charpentier Architectes	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	144 contacts →
	Strong evidence “Specialties: Architecture, Urban Design, Landscape Design, Interior Design Strong focus on sustainable design (LEED, BREEAM and HQE expertise) ISO 9001 certified Offices in Paris…” Source: RevenueBase Database · checked Sep 6, 2026
14	CALQ	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	139 contacts →
	Strong evidence “Créé en 1990 par les architectes Jean-Philippe LE BŒUF et Emmanuel QUIN, CALQ ARCHITECTURE regroupe une cinquantaine de collaborateurs (architectes, urbanistes, ingénieurs…” Source: RevenueBase Database · checked Sep 6, 2026
15	Saguez & Partners	Indirect evidence	Saint-ouen, FranceHQ checked Sep 6, 2026	51-200	132 contacts →
	Indirect evidence “Saguez & Partners is an internationally acclaimed, independently owned and minded design and branding agency, founded in 1998.” Source: RevenueBase Database · checked Sep 6, 2026
16	Chabanne	Strong evidence	Lyon, FranceHQ checked Sep 6, 2026	51-200	129 contacts →
	Strong evidence “INCUBATEUR DE PROJETS DURABLES Chabanne est une agence d’architecture et d’ingénierie spécialiste des ouvrages complexes.” Source: RevenueBase Database · checked Sep 6, 2026
17	OUI	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	n/a	121 contacts →
	Strong evidence “OUI (Office for Urban Innovation) is an architecture and design firm whose work focuses on research and collaboration.” Source: RevenueBase Database · checked Sep 6, 2026
18	Pierre Yovanovitch	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	114 contacts →
	Indirect evidence “Pierre Yovanovitch is a French interior architect and furniture designer.” Source: RevenueBase Database · checked Sep 6, 2026
19	Liaigre	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	109 contacts →
	Indirect evidence “Liaigre is a House of creation whose value proposition lies in simplicity, quality, balance, and beauty.” Source: RevenueBase Database · checked Sep 6, 2026
20	A26 Architectures	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	108 contacts →
	Indirect evidence “Créée il y a maintenant 14 ans, notre agence est née de la volonté de conjuguer les expertises pour répondre aux enjeux de demain."A" comme Architecte et "26" comme le nombre de…” Source: RevenueBase Database · checked Sep 6, 2026
21	Reid Brewin Architects	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	107 contacts →
	Indirect evidence “Reid Brewin Architects was founded in 2006 by Alex Reid and Adrian Brewin.” Source: RevenueBase Database · checked Sep 6, 2026
22	Richez Associés	Indirect evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	106 contacts →
	Indirect evidence “Richez_Associés laisse la place à landForma : une nouvelle agence, de nouveaux regards, une nouvelle envie de créer et 130 concepteurs, architectes, paysagistes, urbanistes -…” Source: RevenueBase Database · checked Sep 6, 2026
23	RDAI	Strong evidence	Paris, FranceHQ checked Sep 6, 2026	51-200	105 contacts →
	Strong evidence “RDAI is a French architecture studio practicing architecture, interior architecture and design.” Source: RevenueBase Database · checked Sep 6, 2026
24	Groupe-6 Architectes	Indirect evidence	Grenoble, FranceHQ checked Sep 6, 2026	51-200	104 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
25	Aagroup Architectes	Indirect evidence	Lyon, FranceHQ checked Sep 6, 2026	51-200	101 contacts →
	Indirect evidence “Associer la force d’un groupe national à un ancrage territorial Il y a 15 ans, Philippe Canivet et Bruno Masson avaient la conviction que la croissance maîtrisée d’une agence…” Source: RevenueBase Database · checked Sep 6, 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: architectural 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 architectural firms.
Partial evidence: Its own public description names part of architectural firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural 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 6,926 architectural firms based in France

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Architectural firms based in France at a glance

As of Sep 6, 2026

30.0%Verified-email coverage

2.5%Mobile-number coverage

7.7Average contacts per company

1-10Median size (employees)

21.9%Largest-city concentration · Paris

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

5,604

11-50

1,079

51-200

143

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

15,1220–30

91731–60

161–90

490–180

66180+

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 architectural 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 “architectural 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 architectural 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 architectural 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, 16,110 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 6, 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.

Architectural 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 architectural 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 architectural firms are there based in France?

RevenueBase identified 6,926 architectural firms headquartered in France 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?

EGIS, headquartered in France, tops this list with the largest team on record.

Which city has the most architectural firms?

Paris leads with 1515 headquartered companies, followed by Lyon (246) and Bordeaux (135).

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 16,110 verified decision-maker contacts tracked across these 6,926 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 6, 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.