Company lists · Data refreshed September 2026

Top 25 Architectural consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 4,679 companies tracked

RevenueBase identified 4,679 architectural consulting firms headquartered in France as of September 2026 and tracks 32,176 professional contacts across them, including 9,471 with verified work emails and 702 with mobile numbers. Paris is the largest hub.

This list covers architectural consulting 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 28, 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 28, 2026 86% judged on-target in blind review

4,679Companies

32,176Contacts tracked

9,471Verified emails

702Mobile numbers

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The 25 largest architectural consulting firms based in France

Ranked by team size

Top 25 of 4,679 architectural consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to architectural consulting 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	BTP Consultants	Indirect evidence	Montigny-le-bretonneux, FranceHQ checked Sep 28, 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 28, 2026
2	AIA Life Designers	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	501-1,000	572 contacts →
	Partial 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 28, 2026
3	ERI	Indirect evidence	Fontenay Sous Bois, FranceHQ checked Sep 28, 2026	1,001-5,000	512 contacts →
	Indirect evidence “Engagé dans sa Raison d'Etre visant à dynamiser les modes de villes, de l'habitat à la mobilité, pour un patrimoine durable, le Groupe ERI est depuis 100 ans à la pointe de…” Source: RevenueBase Database · checked Sep 28, 2026
4	Groupe Acceo BET Energie, Ascenseur, Environnement, AMO & MOE Spécialisées	Indirect evidence	La Ciotat, FranceHQ checked Sep 28, 2026	501-1,000	488 contacts →
	Indirect evidence “ACCEO est un bureau d’études en bâtiment indépendant fondé en 2003 et spécialisé dans des domaines à forte technicité : Ascenseurs, Efficacité énergétique, Environnement, AMO et…” Source: RevenueBase Database · checked Sep 28, 2026
5	Groupe Kardham	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
6	LUSEO	Indirect evidence	Le Haillan, FranceHQ checked Sep 28, 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 28, 2026
7	Setec Bâtiment	Indirect evidence	Paris Cedex 12, FranceHQ checked Sep 28, 2026	201-500	271 contacts →
	Indirect evidence “setec Batiment provides studies and project management of great buildings projects.” Source: RevenueBase Database · checked Sep 28, 2026
8	BERIM	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	247 contacts →
	Partial evidence “The Bérim group is a major player in engineering and consulting in France.” Source: RevenueBase Database · checked Sep 28, 2026
9	BEG Ingénierie	Indirect evidence	Orléans La Source, FranceHQ checked Sep 28, 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 28, 2026
10	Groupe Projex	Indirect evidence	Villeneuve-d'ascq, FranceHQ checked Sep 28, 2026	201-500	170 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 28, 2026
11	CALQ	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	139 contacts →
	Partial 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 28, 2026
12	ABCD	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	135 contacts →
	Indirect evidence “Agence de conseil dans le domaine de l’ingénierie culturelle, ABCD accompagne les maîtres d’ouvrage publics et privés depuis 1986.” Source: RevenueBase Database · checked Sep 28, 2026
13	Chabanne	Partial evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	129 contacts →
	Partial evidence “INCUBATEUR DE PROJETS DURABLES Chabanne est une agence d’architecture et d’ingénierie spécialiste des ouvrages complexes.” Source: RevenueBase Database · checked Sep 28, 2026
14	Sogeti Ingenierie	Indirect evidence	Bois-guillaume, FranceHQ checked Sep 28, 2026	51-200	109 contacts →
	Indirect evidence “SOGETI INGENIERIE fournit à ses clients des prestations de conseil, d'études et de suivi de travaux dans l'objectif de construire des lieux de vie adaptés aux besoins des usagers.” Source: RevenueBase Database · checked Sep 28, 2026
15	A26 Architectures	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
16	Reid Brewin Architects	Indirect evidence	Paris, FranceHQ checked Sep 28, 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 28, 2026
17	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	105 contacts →
	Indirect evidence “Aujourd’hui ARP Astrance regroupe plus de 100 collaborateurs et intervient en tant que conseil, AMO, project manager, BE environnement, écologue sur les projets en développement…” Source: RevenueBase Database · checked Sep 28, 2026
18	Aagroup Architectes	Indirect evidence	Lyon, FranceHQ checked Sep 28, 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 28, 2026
19	CDC Conseil	Indirect evidence	Joué-lès-tours, FranceHQ checked Sep 28, 2026	51-200	98 contacts →
	Indirect evidence “CDC Conseil est une entreprise qui propose - Aux gestionnaires de patrimoines immobiliers des prestations de conseil de suivi d’exploitation, d’achat d’énergie et des solutions…” Source: RevenueBase Database · checked Sep 28, 2026
20	Sinteo	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	96 contacts →
	Indirect evidence “Depuis 2008, nous accompagnons nos clients dans la triple révolution – environnementale, digitale et des usages – qui bouleverse l’immobilier.” Source: RevenueBase Database · checked Sep 28, 2026
21	Soho Architecture	Partial evidence	Lyon, FranceHQ checked Sep 28, 2026	51-200	96 contacts →
	Partial evidence “SOHO ARCHITECTURE est une agence d'architecture pluridisciplinaire de plus de 140 collaborateurs, dont 21 associés, répartis entre Lyon, Paris, Clermont-Ferrand et Bordeaux.” Source: RevenueBase Database · checked Sep 28, 2026
22	Barbanel	Indirect evidence	Bagneux Cedex, FranceHQ checked Sep 28, 2026	51-200	95 contacts →
	Indirect evidence “BARBANEL a pour vocation d’assurer des missions de consultant jusqu’à la maîtrise d’oeuvre totale des projets qui lui sont confiés.” Source: RevenueBase Database · checked Sep 28, 2026
23	Citadia Groupe Scet HTC	Indirect evidence	Toulon, FranceHQ checked Sep 28, 2026	51-200	94 contacts →
	Indirect evidence “Créé en 1997, CITADIA \| Groupe SCET HTC est un acteur national de référence en conseil en urbanisme et aménagement.” Source: RevenueBase Database · checked Sep 28, 2026
24	BTP Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	92 contacts →
	Indirect evidence “Société à taille humaine, BTP Ingénierie est un bureau d’étude spécialisé dans le domaine du calcul de structures et du diagnostic des structures existantes.” Source: RevenueBase Database · checked Sep 28, 2026
25	TERAO	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	87 contacts →
	Indirect evidence “Crée en 1993, TERAO est un pionner de l’immobilier durable, fort d’une équipe pluridisciplinaire d’une quarantaine d’ingénieurs, présent en France et à l’international.” Source: RevenueBase Database · checked Sep 28, 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 consulting 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 consulting firms.
Partial evidence: Its own public description names part of architectural consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural consulting 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 4,679 architectural consulting firms based in France

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Architectural consulting firms based in France at a glance

As of Sep 28, 2026

29.4%Verified-email coverage

2.2%Mobile-number coverage

6.9Average contacts per company

1-10Median size (employees)

19.8%Largest-city concentration · Paris

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,768

11-50

746

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

4,8840–30

4,35631–60

22161–90

390–180

7180+

Company record updated

Median 83.0d

00–30

8,41731–60

10,54761–90

11,94690–180

1,266180+

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 consulting 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 consulting 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 consulting 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 consulting 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, 9,471 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 28, 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 consulting 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 consulting 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 consulting firms are there based in France?

RevenueBase identified 4,679 architectural consulting 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?

BTP Consultants, headquartered in Montigny-Le-Bretonneux, tops this list with the largest team on record.

Which city has the most architectural consulting firms?

Paris leads with 926 headquartered companies, followed by Lyon (160) and Toulouse (93).

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 9,471 verified decision-maker contacts tracked across these 4,679 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 28, 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.