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Company lists · Data refreshed September 2026

Top 21 Infrastructure consulting firms based in Paris, France

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. Paris is the largest hub.

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, how directly it supports the match, 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 SmartSearch, 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 Match evidence 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. Evidence rates how directly each company's own description names infrastructure consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
COLASPartial evidence
Paris, FranceHQ checked Sep 3, 202610001+9,892

“Colas, a subsidiary of the Bouygues Group, is a major player in the construction and maintenance of transportation infrastructure and urban development.”

Source: company website · checked Sep 3, 2026
2
SystraIndirect evidence
Paris, FranceHQ checked Sep 3, 202610001+5,087

“SYSTRA is one of the world's leading engineering and consultancy groups specialising in public transport and mobility solutions.”

Source: company website · checked Sep 3, 2026
3
AGH ConsultingPartial evidence
Paris, FranceHQ checked Sep 3, 2026201-500273

“Le Groupe AGH Consulting est né en France en 2005, avec pour ambition de proposer une alternative disruptive au marché.”

Source: company website · checked Sep 3, 2026
4
BERIMPartial evidence
Paris, FranceHQ checked Sep 3, 2026201-500247

“The Bérim group is a major player in engineering and consulting in France.”

Source: company website · checked Sep 3, 2026
5
AilancyPartial evidence
Paris, FranceHQ checked Sep 3, 2026201-500224

“Ailancy is a top-specialist and fast-growing management-consulting firm specialized in the financial services industry and headquartered in Paris.”

Source: company website · checked Sep 3, 2026
6
SemaphoresPartial evidence
Paris, FranceHQ checked Sep 3, 2026201-500221

“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: company website · checked Sep 3, 2026
7
Nexialog ConsultingIndirect evidence
Paris, FranceHQ checked Sep 3, 2026201-500210

“NEXIALOG est un cabinet de conseil en management spécialisé dans le domaine financier.”

Source: company website · checked Sep 3, 2026
8
A2 ConsultingPartial evidence
Paris, FranceHQ checked Sep 3, 202651-200188

“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: company website · checked Sep 3, 2026
9
SEGATIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-200151

“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: company website · checked Sep 3, 2026
10
Setec Énergie EnvironnementIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-200141

“Setec énergie environnement is a subsidiary of the setec group, one of France’s leading engineering firms (3 300 employees).”

Source: company website · checked Sep 3, 2026
11
ABC MarketingIndirect evidence
Paris, FranceHQ checked Sep 3, 2026n/a110

“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: company website · checked Sep 3, 2026
12
ARP AstranceIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-200106

“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: company website · checked Sep 3, 2026
13
Stanwell ConsultingPartial evidence
Paris, FranceHQ checked Sep 3, 202651-20092

“Stanwell is a consulting firm specialized in strategy and transformation for the Financial Services sector since its creation in 2006.”

Source: company website · checked Sep 3, 2026
14
Horisis ConseilIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-20088

“Créé en 2005, Horisis Conseil est un cabinet de conseil en management des organisations au service de la réalisation des projets des entreprises.”

Source: company website · checked Sep 3, 2026
15
État D'esprit - DimosiaIndirect evidence
Paris, FranceHQ checked Sep 3, 202611-5081

“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: company website · checked Sep 3, 2026
16
MadecaIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-20074

“Basés à Paris et Lyon, nous accompagnons nos clients à chaque phase de leurs projets grâce à ́ ́́, toujours prêtes à ́.”

Source: company website · checked Sep 3, 2026
17
B27Indirect evidence
Paris, FranceHQ checked Sep 3, 202651-20072

“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: company website · checked Sep 3, 2026
18
Kpmg Secteur PublicIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-20068

“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: company website · checked Sep 3, 2026
19
IAC PartnersPartial evidence
Paris, FranceHQ checked Sep 3, 202651-20062

“IAC Partners is a global strategy consulting company specialized in industrial companies.”

Source: company website · checked Sep 3, 2026
20
Erese Groupe Scet HTCIndirect evidence
Paris, FranceHQ checked Sep 3, 202651-20061

“ERESE | Groupe SCET HTC est un bureau d’études spécialisé dans les énergies, les réseaux et l’environnement.”

Source: company website · checked Sep 3, 2026
21
Igrec IngenieriePartial evidence
Paris, FranceHQ checked Sep 3, 202651-20060

“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: company website · checked Sep 3, 2026

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
1-10Median size (employees)
ParisLargest hub · 555 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
310
11-50
167
51-200
47
201-500
18
501-1,000
4
1,001-5,000
3
10001+
2

Email recency for this list is measured across the whole France list rather than this city, 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 evidence 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 SmartSearch, 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.
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 an evidence 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

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 has the most infrastructure consulting firms?

Paris leads 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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Related lists

Browse: Companies home · Infrastructure consulting firms in France · All France lists · All Infrastructure consulting firms lists · New lists

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 SmartSearch, 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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