Company lists · Data refreshed September 2026

Top 25 Building consulting firms based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 3,577 companies tracked

RevenueBase identified 3,577 building consulting firms headquartered in France as of September 2026 and tracks 25,906 professional contacts across them, including 7,850 with verified work emails and 498 with mobile numbers. Paris is the largest hub.

This list covers building 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 23, 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 23, 2026 86% judged on-target in blind review

3,577Companies

25,906Contacts tracked

7,850Verified emails

498Mobile numbers

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The 25 largest building consulting firms based in France

Ranked by team size

Top 25 of 3,577 building consulting firms based in France, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to building 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 23, 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 23, 2026
2	Parlym	Indirect evidence	Estaque, FranceHQ checked Sep 23, 2026	1,001-5,000	732 contacts →
	Indirect evidence “For over 50 years the Parlym Group has managed to establish itself as a major player in industrial engineering all over the world.” Source: RevenueBase Database · checked Sep 23, 2026
3	Groupe Acceo BET Energie, Ascenseur, Environnement, AMO & MOE Spécialisées	Indirect evidence	La Ciotat, FranceHQ checked Sep 23, 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 23, 2026
4	LUSEO	Partial evidence	Le Haillan, FranceHQ checked Sep 23, 2026	501-1,000	345 contacts →
	Partial evidence “LUSEO is a multidisciplinary building design firm that provides highly specialized engineering and project administration services.” Source: RevenueBase Database · checked Sep 23, 2026
5	Setec Bâtiment	Partial evidence	Paris Cedex 12, FranceHQ checked Sep 23, 2026	201-500	271 contacts →
	Partial evidence “setec Batiment provides studies and project management of great buildings projects.” Source: RevenueBase Database · checked Sep 23, 2026
6	BEG Ingénierie	Indirect evidence	Orléans La Source, FranceHQ checked Sep 23, 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 23, 2026
7	Groupe Projex	Indirect evidence	Villeneuve-d'ascq, FranceHQ checked Sep 23, 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 23, 2026
8	Sogeti Ingenierie	Indirect evidence	Bois-guillaume, FranceHQ checked Sep 23, 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 23, 2026
9	Reid Brewin Architects	Indirect evidence	Paris, FranceHQ checked Sep 23, 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 23, 2026
10	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 23, 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 23, 2026
11	KS Construction KS Groupe	Indirect evidence	Bischheim, FranceHQ checked Sep 23, 2026	51-200	103 contacts →
	Indirect evidence “Fondée en 1958, KS Construction est un acteur de référence de la construction dans le Grand Est.” Source: RevenueBase Database · checked Sep 23, 2026
12	Watt Design & Build	Partial evidence	Paris, FranceHQ checked Sep 23, 2026	51-200	99 contacts →
	Partial evidence “WHAT IS WATT Founded in 2011, Watt Network is a French consulting firm in corporate real estate for Office and Retail in France and abroad.” Source: RevenueBase Database · checked Sep 23, 2026
13	CDC Conseil	Indirect evidence	Joué-lès-tours, FranceHQ checked Sep 23, 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 23, 2026
14	Barbanel	Indirect evidence	Bagneux Cedex, FranceHQ checked Sep 23, 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 23, 2026
15	Auxitec	Indirect evidence	Le Havre, FranceHQ checked Sep 23, 2026	501-1,000	93 contacts →
	Indirect evidence “PARTAGER LE PROGRES Auxitec a rejoint Artelia en 2017, un groupe international multidisciplinaire de conseil, d’ingénierie et de management de projet dans les secteurs du…” Source: RevenueBase Database · checked Sep 23, 2026
16	Arpon Technologies	Indirect evidence	Montrouge, FranceHQ checked Sep 23, 2026	51-200	93 contacts →
	Indirect evidence “ARPON TECHNOLOGIES est une société de conseils spécialisée en ingénierie et management de projet.” Source: RevenueBase Database · checked Sep 23, 2026
17	BTP Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 23, 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 23, 2026
18	Terrell Group	Indirect evidence	Boulogne Billancourt, FranceHQ checked Sep 23, 2026	51-200	83 contacts →
	Indirect evidence “Fondé en 1982, le Groupe TERRELL est basé à Boulogne-Billancourt, à Toulouse, Lyon, Londres et à Beyrouth.” Source: RevenueBase Database · checked Sep 23, 2026
19	Alto Ingénierie	Indirect evidence	Bussy-saint-martin, FranceHQ checked Sep 23, 2026	51-200	81 contacts →
	Indirect evidence “ALTO Ingénierie est un bureau d'étude Fluides et Environnement, qui intervient en MOE et AMO, mais également en Direction de Synthèse et BIM Management.” Source: RevenueBase Database · checked Sep 23, 2026
20	Hisa Ingenierie	Indirect evidence	Saint- Romain De Colbosc, FranceHQ checked Sep 23, 2026	51-200	76 contacts →
	Indirect evidence “Bureau d’études tous corps d’état, HISA INGENIERIE développe au quotidien la quasi totalité des métiers d’études et réalise l’ensemble des prestations intellectuelles, de la…” Source: RevenueBase Database · checked Sep 23, 2026
21	CICAD	Indirect evidence	Montreuil, FranceHQ checked Sep 23, 2026	51-200	76 contacts →
	Indirect evidence “CICAD est une filiale du groupe Ingérop.” Source: RevenueBase Database · checked Sep 23, 2026
22	MODUO	Indirect evidence	Sainghin En Melantois, FranceHQ checked Sep 23, 2026	51-200	74 contacts →
	Indirect evidence “Depuis 2004, MODUO accompagne vos projets de construction, de la conception à la réalisation, partout en France.” Source: RevenueBase Database · checked Sep 23, 2026
23	B27	Indirect evidence	Paris, FranceHQ checked Sep 23, 2026	51-200	73 contacts →
	Indirect evidence “B27 – Just Build It." Chez B27, nous sommes un bureau d'études et d'ingénierie engagé à concevoir et à accompagner des projets ambitieux, durables et innovants.” Source: RevenueBase Database · checked Sep 23, 2026
24	Akila Ingénierie	Indirect evidence	Epinay Sur Seine, FranceHQ checked Sep 23, 2026	11-50	73 contacts →
	Indirect evidence “Akila Ingénierie est un bureau d'études en ingénierie du bâtiment à taille humaine et proche de ses clients.” Source: RevenueBase Database · checked Sep 23, 2026
25	Pingat	Indirect evidence	Reims, FranceHQ checked Sep 23, 2026	51-200	73 contacts →
	Indirect evidence “Pingat Ingénierie, dirigée par Arnaud Pingat, est une société qui couvre l’ensemble des métiers de la maîtrise d’œuvre et de l’ingénierie, tout particulièrement dans six grands…” Source: RevenueBase Database · checked Sep 23, 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: building 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 building consulting firms.
Partial evidence: Its own public description names part of building consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building 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 3,577 building consulting firms based in France

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Building consulting firms based in France at a glance

As of Sep 23, 2026

30.3%Verified-email coverage

1.9%Mobile-number coverage

7.2Average contacts per company

1-10Median size (employees)

11.3%Largest-city concentration · Paris

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

2,757

11-50

681

51-200

201-500

501-1,000

1,001-5,000

10001+

Freshness & accuracy

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

Email last verified

Median 25.0d

5,9740–30

1,77831–60

8861–90

290–180

8180+

Company record updated

Median 81.0d

00–30

9,71431–60

10,21561–90

5,02090–180

957180+

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 building 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 “building 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 building 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 building 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, 7,850 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 23, 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.

Building 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 building 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 building consulting firms are there based in France?

RevenueBase identified 3,577 building 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 building consulting firms?

Paris leads with 405 headquartered companies, followed by Lyon (77) and Toulouse (55).

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 7,850 verified decision-maker contacts tracked across these 3,577 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 23, 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.