Company lists · Data refreshed September 2026

Top 21 Infrastructure consulting firms based in Paris, France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 555 companies tracked

RevenueBase identified 555 infrastructure consulting firms headquartered in Paris, France as of September 2026 and tracks 24,004 professional contacts across them, including 8,573 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers infrastructure consulting firms headquartered in Paris, 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 3, 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 3, 2026 86% judged on-target in blind review

555Companies

24,004Contacts tracked

8,573Verified emails

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The 21 largest infrastructure consulting firms based in Paris, France

Ranked by team size

Top 21 of 555 infrastructure consulting firms based in Paris, France, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure 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	COLAS	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	10001+	9,892 contacts →
	Partial evidence “Colas, a subsidiary of the Bouygues Group, is a major player in the construction and maintenance of transportation infrastructure and urban development.” Source: RevenueBase Database · checked Sep 3, 2026
2	Systra	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	10001+	5,087 contacts →
	Indirect evidence “SYSTRA is one of the world's leading engineering and consultancy groups specialising in public transport and mobility solutions.” Source: RevenueBase Database · checked Sep 3, 2026
3	AGH Consulting	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	201-500	273 contacts →
	Partial evidence “Le Groupe AGH Consulting est né en France en 2005, avec pour ambition de proposer une alternative disruptive au marché.” Source: RevenueBase Database · checked Sep 3, 2026
4	BERIM	Partial evidence	Paris, FranceHQ checked Sep 3, 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 3, 2026
5	Ailancy	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	201-500	224 contacts →
	Partial evidence “Ailancy is a top-specialist and fast-growing management-consulting firm specialized in the financial services industry and headquartered in Paris.” Source: RevenueBase Database · checked Sep 3, 2026
6	Semaphores	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	201-500	221 contacts →
	Partial evidence “Semaphores, a consulting and expertise firm, is involved in a very wide range of skills: from public accounting to organizational strategy projects, including organization…” Source: RevenueBase Database · checked Sep 3, 2026
7	Nexialog Consulting	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	201-500	210 contacts →
	Indirect evidence “NEXIALOG est un cabinet de conseil en management spécialisé dans le domaine financier.” Source: RevenueBase Database · checked Sep 3, 2026
8	A2 Consulting	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	188 contacts →
	Partial evidence “A2 Consulting est un cabinet de conseil en organisation et management multi-spécialiste et totalement indépendant créé en A2 Consulting s'engage auprès des entreprises pour…” Source: RevenueBase Database · checked Sep 3, 2026
9	SEGAT	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	151 contacts →
	Indirect evidence “SEGAT intervient aux côtés de l’ensemble des acteurs des territoires pour définir des stratégies foncières, dénouer des problématiques complexes et créer de la valeur immobilière…” Source: RevenueBase Database · checked Sep 3, 2026
10	Setec Énergie Environnement	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	141 contacts →
	Indirect evidence “Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).” Source: RevenueBase Database · checked Sep 3, 2026
11	ABC Marketing	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	n/a	110 contacts →
	Indirect evidence “Etudes et Conseil en Marketing Spécialisé sur les marché B2B en particulier en Energie, Bâtiment et Telécoms "La force d'une petite équipe qui œuvre en marketing industriel et en…” Source: RevenueBase Database · checked Sep 3, 2026
12	ARP Astrance	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	106 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 3, 2026
13	Stanwell Consulting	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	92 contacts →
	Partial evidence “Stanwell is a consulting firm specialized in strategy and transformation for the Financial Services sector since its creation in 2006.” Source: RevenueBase Database · checked Sep 3, 2026
14	Horisis Conseil	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	88 contacts →
	Indirect evidence “Créé en 2005, Horisis Conseil est un cabinet de conseil en management des organisations au service de la réalisation des projets des entreprises.” Source: RevenueBase Database · checked Sep 3, 2026
15	État D'esprit - Dimosia	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	11-50	81 contacts →
	Indirect evidence “Études, création graphique et édition, évènementiel, relations presse et relations publique, web… Spécialisée dans les domaines de la concertation et de la communication publique…” Source: RevenueBase Database · checked Sep 3, 2026
16	Madeca	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	74 contacts →
	Indirect evidence “Basés à Paris et Lyon, nous accompagnons nos clients à chaque phase de leurs projets grâce à ́ ́́, toujours prêtes à ́.” Source: RevenueBase Database · checked Sep 3, 2026
17	B27	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	72 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 3, 2026
18	Kpmg Secteur Public	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	68 contacts →
	Indirect evidence “Depuis l’intégration d’Eneis, cabinet spécialisé dans la définition des stratégies, l’évaluation des politiques publiques et la transformation des organisations, KPMG a étoffé…” Source: RevenueBase Database · checked Sep 3, 2026
19	IAC Partners	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	62 contacts →
	Partial evidence “IAC Partners is a global strategy consulting company specialized in industrial companies.” Source: RevenueBase Database · checked Sep 3, 2026
20	Erese Groupe Scet HTC	Indirect evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	61 contacts →
	Indirect evidence “ERESE \| Groupe SCET HTC est un bureau d’études spécialisé dans les énergies, les réseaux et l’environnement.” Source: RevenueBase Database · checked Sep 3, 2026
21	Igrec Ingenierie	Partial evidence	Paris, FranceHQ checked Sep 3, 2026	51-200	60 contacts →
	Partial evidence “Fondée en 1958, IGREC INGENIERIE, assure des missions d’ingénierie générale et de conseil dans les domaines les plus variés du bâtiment, de l’industrie, des infrastructures, des…” Source: RevenueBase Database · checked Sep 3, 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: infrastructure 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 infrastructure consulting firms.
Partial evidence: Its own public description names part of infrastructure consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure 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 21 of 555 infrastructure consulting firms based in Paris, France

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Infrastructure consulting firms based in Paris, France at a glance

As of Sep 3, 2026

35.7%Verified-email coverage

43.3Average contacts per company

1-10Median size (employees)

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

310

11-50

167

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole France list rather than for Paris, so it is reported there. Company counts and contact totals on this page are exact for Paris, over 555 companies.

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 infrastructure 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 Paris, France whose own description of what they do matches “infrastructure 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 infrastructure 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 infrastructure consulting firms, and records with no verified work email. Companies headquartered outside Paris 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, 8,573 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 3, 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.

Infrastructure consulting firms by metro in France

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 infrastructure 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 infrastructure consulting firms are there based in Paris, France?

RevenueBase identified 555 infrastructure consulting firms headquartered in Paris, 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?

COLAS, headquartered in Paris, tops this list with the largest team on record.

Which city in France has the most infrastructure consulting firms?

Paris leads France with 555 headquartered companies, followed by Lyon (99) and Toulouse (51).

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 8,573 verified decision-maker contacts tracked across these 555 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 3, 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.