Company lists · Data refreshed September 2026

Top 25 Seismic design companies based in France

Name: Seismic design companies based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 216 companies tracked

RevenueBase identified 216 seismic design companies headquartered in France as of September 2026 and tracks 1,385 professional contacts across them, including 409 with verified work emails. Paris is the largest hub.

This list covers seismic design companies 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 22, 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 22, 2026 86% judged on-target in blind review

216Companies

1,385Contacts tracked

409Verified emails

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The 25 largest seismic design companies based in France

Ranked by team size

Top 25 of 216 seismic design companies based in France, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to seismic design companies: 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 Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 22, 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 22, 2026
2	Axiolis	Indirect evidence	La Penne-sur-huveaune, FranceHQ checked Sep 22, 2026	51-200	67 contacts →
	Indirect evidence “Depuis plus de 10 ans nous intervenons sur l’ensemble des métiers de l’ingénierie des structures neuves et existantes en maîtrise d’œuvre, exécution, instrumentation et diagnostic…” Source: RevenueBase Database · checked Sep 22, 2026
3	Gph, Bureau D'études Pour L'habitat	Indirect evidence	Challans, FranceHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “GPH est une entité du groupe NOVAM, au sein du pôle Habitat et géotechnique de l'habitat.” Source: RevenueBase Database · checked Sep 22, 2026
4	Sixense Necs	Indirect evidence	Sceaux, FranceHQ checked Sep 22, 2026	11-50	34 contacts →
	Indirect evidence “Sixense necs est un bureau d’étude spécialisé dans l’expertise et le conseil dans le domaine du génie civil.” Source: RevenueBase Database · checked Sep 22, 2026
5	Bost Ingénierie	Indirect evidence	La Talaudiere, FranceHQ checked Sep 22, 2026	11-50	31 contacts →
	Indirect evidence “Bost ingénierie réalise depuis 2001 des études de structures pour des projets neufs et de restructuration dans les domaines suivants - Béton Armé - Charpente Métallique -…” Source: RevenueBase Database · checked Sep 22, 2026
6	Saga Ingenierie	Indirect evidence	Grigny, FranceHQ checked Sep 22, 2026	11-50	29 contacts →
	Indirect evidence “À vos côtés, du sol jusqu’à l’horizon, pour tous vos projets géotechniques.” Source: RevenueBase Database · checked Sep 22, 2026
7	Studis Ingenierie	Indirect evidence	Lyon, FranceHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect evidence “Bureau d'études spécialisé dans l'ingénierie du bâtiment et la restauconception, dans l'ensemble des domaines de la construction (tertiaire, logements, scolaire.)” Source: RevenueBase Database · checked Sep 22, 2026
8	Structureo	Indirect evidence	Antony, FranceHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect evidence “STRUCTUREO est un bureau d'études structure et géotechnique qui intervient sur les bâtiments existants, réalisant diagnostics, études, conseils, instrumentation des ouvrages…” Source: RevenueBase Database · checked Sep 22, 2026
9	Design BOX	Partial evidence	Rouen, FranceHQ checked Sep 22, 2026	11-50	23 contacts →
	Partial evidence “Design Box a été créée en 2009 par Philip Garbutt et Pierre Mouchel pour proposer un service de pointe en matière de structure auprès des maîtres d’ouvrages, des architectes et…” Source: RevenueBase Database · checked Sep 22, 2026
10	SKY Ingenierie	Indirect evidence	Alfortville, FranceHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “Diagnostic Structure, Couverture, Étanchéité et Façade, Conception, Suivi de Chantier, OPC et Exécution: SKY INGENIERIE est spécialisé dans l'ingénierie de la structure pour les…” Source: RevenueBase Database · checked Sep 22, 2026
11	BEGT	Indirect evidence	Laon, FranceHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “BEGT est un bureau d’études spécialisé dans le domaine du béton armé, doté d’une expertise de plus de 32 ans dans la réalisation de plans et d’études techniques.” Source: RevenueBase Database · checked Sep 22, 2026
12	Betex Ingenierie	Indirect evidence	Six-fours-les-plages, FranceHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “L'INGÉNIERIE STRUCTURELLE DE L'EXISTANT Spécialiste de la reconnaissance et de l’analyse des structures et des matériaux existants, BETEX INGENIERIE vous propose un accompagnement…” Source: RevenueBase Database · checked Sep 22, 2026
13	IBA	Indirect evidence	Vertou, FranceHQ checked Sep 22, 2026	11-50	19 contacts →
	Indirect evidence “BUREAU D’ETUDES TECHNIQUES ET D’INGENIERIE DU BÂTIMENT UNE VISION 360° DE LA CONSTRUCTION Notre bureau d’études spécialisé en dimensionnement des bâtiments, vous accompagne dans…” Source: RevenueBase Database · checked Sep 22, 2026
14	Globalis BTP	Indirect evidence	Bussy Saint Martin, FranceHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “Globalis BTP est une entreprise spécialisée dans la réparation durable et la rénovation de bâtiments existants.” Source: RevenueBase Database · checked Sep 22, 2026
15	Ates Ingénierie Conseils Structures	Indirect evidence	Niort, FranceHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “Notre Bureau d’Etudes, implanté à Niort depuis 1993, est intégré au sein de la société Holding PLEIADE constituant ainsi un ensemble de trente-huit collaboratrices et…” Source: RevenueBase Database · checked Sep 22, 2026
16	SL Structures	Indirect evidence	Orleans, FranceHQ checked Sep 22, 2026	11-50	15 contacts →
	Indirect evidence “Ce que propose SL STRUCTURES Des études d'avant projet de conception: une assistance qualifiée dans la conception de la structure Des études d'avant projet d'optimisation (AP)…” Source: RevenueBase Database · checked Sep 22, 2026
17	ECTS	Indirect evidence	Reze, FranceHQ checked Sep 22, 2026	1-10	14 contacts →
	Indirect evidence “ECTS est un bureau d'études structures spécialisé en charpente métallique et bois, intervenant aussi bien en neuf qu'en réhabilitation, avec une forte culture du bâti existant.” Source: RevenueBase Database · checked Sep 22, 2026
18	Secc Ingénierie	Indirect evidence	Montigny Le Bretonneux, FranceHQ checked Sep 22, 2026	11-50	12 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
19	Kappa Offshore Solutions	Partial evidence	St-Nazaire, FranceHQ checked Sep 22, 2026	1-10	12 contacts →
	Partial evidence “Kappa Offshore Solutions is a marine engineering company specialized in offshore seismic data acquisition.” Source: RevenueBase Database · checked Sep 22, 2026
20	Blue-Eng	Indirect evidence	Saint Priest En Jarez, FranceHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “Notre bureau de calculs, composé de 20 ingénieurs, réalise quotidiennement des calculs mécaniques permettant le dimensionnement, la vérification ou l’optimisation de structures.” Source: RevenueBase Database · checked Sep 22, 2026
21	123 Structure	Indirect evidence	Clisson, FranceHQ checked Sep 22, 2026	11-50	11 contacts →
	Indirect evidence “123 Structure, basé à Clisson (44) est un bureau d’études spécialisé dans l’ingénierie des structures et plus particulièrement dans la maison individuelle, les petits collectifs…” Source: RevenueBase Database · checked Sep 22, 2026
22	DPI Structure	Indirect evidence	Villeurbanne, FranceHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Depuis plus de 30 ans, le bureau d’études DPI est spécialisé en dimensionnement des bâtiments.” Source: RevenueBase Database · checked Sep 22, 2026
23	Spic Ingénierie Structures	Indirect evidence	Joué-lès-tours, FranceHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “SPIC – Simon Philippe Ingénierie Construction est une société d’ingénierie spécialisée dans le bâtiment et le génie civil.” Source: RevenueBase Database · checked Sep 22, 2026
24	Seister	Partial evidence	Châtenay-malabry, FranceHQ checked Sep 22, 2026	1-10	10 contacts →
	Partial evidence “SEISTER is a consulting company specialized in the fields of geosciences, geological and seismic engineering.” Source: RevenueBase Database · checked Sep 22, 2026
25	Numesys	Indirect evidence	Biot, FranceHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “NUMESYS est un Bureau de Calcul spécialisé dans le dimensionnement de structures assisté par logiciels de simulation numérique, qui permettent la modélisation de phénomènes…” Source: RevenueBase Database · checked Sep 22, 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: seismic design companies. 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 seismic design companies.
Partial evidence: Its own public description names part of seismic design companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name seismic design companies. 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 216 seismic design companies based in France

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Seismic design companies based in France at a glance

As of Sep 22, 2026

29.5%Verified-email coverage

6.4Average contacts per company

1-10Median size (employees)

7.9%Largest-city concentration · Paris

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

158

11-50

51-200

Email recency for this list is measured worldwide rather than for France, so it is reported there. Company counts and contact totals on this page are exact for France, over 216 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 seismic design companies, 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 “seismic design companies”. 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 seismic design companies), 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 seismic design companies, 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, 409 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 22, 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.

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 seismic design companies, 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 seismic design companies are there based in France?

RevenueBase identified 216 seismic design companies 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 Ingénierie, headquartered in Paris, tops this list with the largest team on record.

Which city has the most seismic design companies?

Paris leads with 17 headquartered companies, followed by Lyon (4) and Caen (3).

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 409 verified decision-maker contacts tracked across these 216 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 22, 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.