Company lists · Data refreshed September 2026

Top 25 Hydro engineering and consulting firms based in Paris, France

Name: Hydro engineering and 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 28, 2026 98 companies tracked

RevenueBase identified 98 hydro engineering and consulting firms headquartered in Paris, France as of September 2026 and tracks 2,021 professional contacts across them, including 920 with verified work emails. Across France, Paris is the largest hub for this category.

This list covers hydro engineering and 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 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

98Companies

2,021Contacts tracked

920Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest hydro engineering and consulting firms based in Paris, France

Ranked by team size

Top 25 of 98 hydro engineering and consulting firms based in Paris, France, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to hydro engineering and 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	Aventa	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	201-500	176 contacts →
	Indirect evidence “Aventa empowers the Marine Energy market with the sharpest skills to help design a bluer future.” Source: RevenueBase Database · checked Sep 28, 2026
2	ISL Ingénierie	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	163 contacts →
	Partial evidence “ISL Ingénierie is a French engineering company, independent from any industrial or financial group, created in 1986 by three experienced engineers : Freddy Isambert, Michel…” Source: RevenueBase Database · checked Sep 28, 2026
3	Setec Énergie Environnement	Partial evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	143 contacts →
	Partial 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 28, 2026
4	Oneside	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	107 contacts →
	Indirect evidence “Société de conseil en ingénierie, nous proposons notre expertise dans 3 domaines - Énergies & Industrie - Infrastructures Ferroviaires - Génie civil & Bâtiment.” Source: RevenueBase Database · checked Sep 28, 2026
5	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
6	Ingetec Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	88 contacts →
	Indirect evidence “Parce que le développement durable des territoires sur lesquels nous opérons est notre raison d’être, les experts d’Ingetec s’investissent chaque jour pour l’environnement…” Source: RevenueBase Database · checked Sep 28, 2026
7	Igrec Ingenierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	61 contacts →
	Indirect 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 28, 2026
8	Prolog Ingenierie	Strong evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	56 contacts →
	Strong evidence “PROLOG INGENIERIE is a consulting engineering firm at the forefront of water management and remote-controlled systems, committed to enhancing water quality and environmental…” Source: RevenueBase Database · checked Sep 28, 2026
9	OXIAM	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	54 contacts →
	Indirect evidence “Oxiam est une société de conseil en ingénierie qui intervient à travers 3 grands domaines d’expertise - L’énergie & l'environnement - La mobilité : le transport ferroviaire et…” Source: RevenueBase Database · checked Sep 28, 2026
10	Sepia Conseils	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “SEPIA Conseils accompagne depuis plus de 30 ans les acteurs de la gestion de l’eau et de l’aménagement du territoire vers des solutions durables, sobres et résilientes face aux…” Source: RevenueBase Database · checked Sep 28, 2026
11	Avesig	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	37 contacts →
	Indirect evidence “AVESIG est un Bureau d’études d’assistance technique et de conseils en Ingénierie Nous rendons simple et abordable ce qui paraît complexe et compliqué.” Source: RevenueBase Database · checked Sep 28, 2026
12	Groupe SVL	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	31 contacts →
	Indirect evidence “SVL est une société d'ingénierie qui accompagne ses clients dans le domaine des VRD et des infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
13	Quatorze	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	26 contacts →
	Indirect evidence “Moriké Sow et Pierre Trancart, ingénieurs de formation, créent Quatorze-IG il y a plus de 10 ans.” Source: RevenueBase Database · checked Sep 28, 2026
14	e.leven	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Bureau d’étude en ingénierie, direction travaux et économie du bâtiment” Source: RevenueBase Database · checked Sep 28, 2026
15	Astron	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	51-200	22 contacts →
	Indirect evidence “Born to engineer.” Source: RevenueBase Database · checked Sep 28, 2026
16	Urbanwater	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Urbanwater, bureau d'études en hydrologie urbaine, développe le lien entre l’eau et les territoires urbains, à toutes les échelles.” Source: RevenueBase Database · checked Sep 28, 2026
17	Assemblage Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	1-10	19 contacts →
	Indirect evidence “Assemblage ingénierie est un bureau d’études techniques rassemblant des compétences en ingénierie des structures, en ingénierie environnementale et en projets de développement…” Source: RevenueBase Database · checked Sep 28, 2026
18	SIBAT	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “Bureau d’études indépendant tous corps d’état, dont l’activité est axée sur l’ingénierie générale du bâtiment.” Source: RevenueBase Database · checked Sep 28, 2026
19	EACM	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “EACM est une équipe d’experts au service de la terre.” Source: RevenueBase Database · checked Sep 28, 2026
20	Agence Thierry Maytraud ATM	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “ATM est un bureau d’études spécialisé en hydrologie urbaine et en paysage, fondé par Thierry Maytraud en 2011.” Source: RevenueBase Database · checked Sep 28, 2026
21	Groupe D'ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Société d'Ingénierie Pluridisciplinaire, Groupe d’Ingénierie se compose de sociétés proposant un savoir-faire et des solutions durables complémentaires dans le domaine de la…” Source: RevenueBase Database · checked Sep 28, 2026
22	YXO Consultants	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “YXO consultants (anciennement BPR France) est un cabinet d’ingénieurs conseils et consultants experts dans les domaines de l’eau, de l’énergie et de l’environnement.” Source: RevenueBase Database · checked Sep 28, 2026
23	1g Solutions	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “1G SOLUTIONS est un bureau d’études et de maîtrises d’œuvre des lots techniques pluridisciplinaire (Géotechnique, Structure, VRD).” Source: RevenueBase Database · checked Sep 28, 2026
24	Ateneos Conseil	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “CONSTRUISONS AUTREMENT LE CONSEIL EN INGENIERIE ATENEOS CONSEIL est née en 2021 d'une conviction simple : la réussite des grands projets d'ingénierie repose avant tout sur les…” Source: RevenueBase Database · checked Sep 28, 2026
25	XL Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Depuis 2009, nous concevons vos projets dès la réalisation du Permis de Construire avec l’appui de nos ingénieurs structures, fluides, thermiques et électriques.” 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: hydro engineering and 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 hydro engineering and consulting firms.
Partial evidence: Its own public description names part of hydro engineering and consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydro engineering and 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 98 hydro engineering and consulting firms based in Paris, France

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 920 reachable decision-makers.

Free signup · no credit card

View the full list →

Hydro engineering and consulting firms based in Paris, France at a glance

As of Sep 28, 2026

45.5%Verified-email coverage

20.6Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 98 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 hydro engineering and 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 “hydro engineering and 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 hydro engineering and 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 hydro engineering and 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, 920 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.

Hydro engineering and consulting firms by metro in France

Hydro engineering and consulting firms in Lyon37

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 hydro engineering and 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 hydro engineering and consulting firms are there based in Paris, France?

RevenueBase identified 98 hydro engineering and 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?

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

Which city in France has the most hydro engineering and consulting firms?

Paris leads France with 98 headquartered companies, followed by Lyon (37) and Toulouse (20).

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 920 verified decision-maker contacts tracked across these 98 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.

Ready to reach these companies? Verified emails and direct dials for all 98 hydro engineering and consulting firms based in Paris, France. Start with a free account, no credit card.

Download this list →

Related lists

Hydro engineering and consulting firms by geography

Browse the directory

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.