Company lists · Data refreshed September 2026

Top 25 Engineering design optimization companies based in France

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 630 companies tracked

RevenueBase identified 630 engineering design optimization companies headquartered in France as of September 2026 and tracks 7,178 professional contacts across them, including 1,491 with verified work emails. Paris is the largest hub.

This list covers engineering design optimization 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 16, 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 16, 2026 86% judged on-target in blind review

630Companies

7,178Contacts tracked

1,491Verified emails

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The 25 largest engineering design optimization companies based in France

Ranked by team size

Top 25 of 630 engineering design optimization companies based in France, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to engineering design optimization 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	ECM Engineering Conception Maintenance	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	201-500	336 contacts →
	Partial evidence “ECM (Engineering Conception Maintenance) a été créée en 1973 par le groupe CRIT, leader français du service aux entreprises dont le C.A.” Source: RevenueBase Database · checked Sep 16, 2026
2	Alcadia Entreprises	Indirect evidence	Lyon, FranceHQ checked Sep 16, 2026	51-200	166 contacts →
	Indirect evidence “Alcadia est une entreprise de conseil en ingénierie spécialisée dans les domaines technologiques à forte valeur ajoutée.” Source: RevenueBase Database · checked Sep 16, 2026
3	Digital Product Simulation	Partial evidence	La Celle-saint-cloud, FranceHQ checked Sep 16, 2026	51-200	140 contacts →
	Partial evidence “Founded in 1997, Digital Product Simulation (DPS) has acquired a reputation for excellence when it comes to integrating analysis and simulation in the design process of industrial…” Source: RevenueBase Database · checked Sep 16, 2026
4	Steap Stailor	Partial evidence	Seyssins, FranceHQ checked Sep 16, 2026	51-200	101 contacts →
	Partial evidence “Design * Plant layout counselling * Comprehensive design of factories and manufacturing plant * Prototype design * Metal structure designs SteapStailor carries out complete…” Source: RevenueBase Database · checked Sep 16, 2026
5	BTP Ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 16, 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 16, 2026
6	VACOA	Indirect evidence	Puteaux, FranceHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence “VACOA, c’est le fruit d’un projet initié à deux par Benoit & Clément qui se sont un jour dit « Cap’ ou pas Cap’ 🤝?” Source: RevenueBase Database · checked Sep 16, 2026
7	Akila Ingénierie	Indirect evidence	Epinay Sur Seine, FranceHQ checked Sep 16, 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 16, 2026
8	Synapse Construction	Indirect evidence	Écully, FranceHQ checked Sep 16, 2026	51-200	70 contacts →
	Indirect evidence “SYNAPSE Construction, société d'ingénierie bureau d'études techniques (BET) dans les métiers du bâtiment, répond aux besoins des donneurs d'ordres publics et privés.” Source: RevenueBase Database · checked Sep 16, 2026
9	Axiolis	Indirect evidence	La Penne-sur-huveaune, FranceHQ checked Sep 16, 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 16, 2026
10	ILAO	Indirect evidence	Lagord, FranceHQ checked Sep 16, 2026	11-50	55 contacts →
	Indirect evidence “ILAO est un bureau d'études en ingénierie d'écoconception et en prescription de solutions techniques innovantes en Industrie et Bâtiment.” Source: RevenueBase Database · checked Sep 16, 2026
11	DAO Bureau D'etudes	Partial evidence	Avrillé, FranceHQ checked Sep 16, 2026	51-200	52 contacts →
	Partial evidence “DAO BE Group is a full-service engineering consulting firm which provides services for public agencies and private sector companies.” Source: RevenueBase Database · checked Sep 16, 2026
12	EPDC	Indirect evidence	Ivry-sur-seine, FranceHQ checked Sep 16, 2026	11-50	51 contacts →
	Indirect evidence “Bienvenue chez EPDC, expertise pluridisciplinaire et indépendante en ingénierie et études techniques, où le savoir-faire et l'innovation élaborent des solutions uniques.” Source: RevenueBase Database · checked Sep 16, 2026
13	T E S S Atelier D'ingénierie	Indirect evidence	Paris, FranceHQ checked Sep 16, 2026	11-50	50 contacts →
	Indirect evidence “T/E/S/S comprises some 50 engineers and architects, headed by Tom GRAY, Matt KING and Bernard VAUDEVILLE.” Source: RevenueBase Database · checked Sep 16, 2026
14	SERBA	Indirect evidence	Challans, FranceHQ checked Sep 16, 2026	51-200	48 contacts →
	Indirect evidence “SERBA est une entité du groupe NOVAM, au sein du pôle Structures Béton, Bois & Métal (SERBA, SERTCO, ECTS).” Source: RevenueBase Database · checked Sep 16, 2026
15	Technifrance Groupe	Indirect evidence	Teteghem, FranceHQ checked Sep 16, 2026	51-200	47 contacts →
	Indirect evidence “Au service de ses clients depuis 35 ans, TECHNIFRANCE, bureau d’études et d’ingénierie, spécialisé dans les secteurs suivants : • Architecture Navale – Expertises – Fluvial •…” Source: RevenueBase Database · checked Sep 16, 2026
16	Groupe Solsi	Indirect evidence	Hagondange, FranceHQ checked Sep 16, 2026	51-200	46 contacts →
	Indirect evidence “Sollicitez notre expertise à travers l’expérience de nos ingénieurs et techniciens!” Source: RevenueBase Database · checked Sep 16, 2026
17	Et2i	Indirect evidence	Port-jérôme-sur-seine, FranceHQ checked Sep 16, 2026	11-50	45 contacts →
	Indirect evidence “L’EXPÉRIENCE EST INDISPENSABLE POUR TRAVAILLER DANS LE DOMAINE DES ETUDES TECHNIQUES D’INSTALLATIONS INDUSTRIELLES.” Source: RevenueBase Database · checked Sep 16, 2026
18	MROD	Indirect evidence	Douai, FranceHQ checked Sep 16, 2026	51-200	42 contacts →
	Indirect evidence “Prestation de services & Conseil en ingénierie - Douai, Nantes & Marignane Forte de sa stratégie professionnelle, MROD recrute et accompagne ses collaborateurs en partageant une…” Source: RevenueBase Database · checked Sep 16, 2026
19	Groupe Ascia	Indirect evidence	Haute Goulaine, FranceHQ checked Sep 16, 2026	51-200	39 contacts →
	Indirect evidence “Le groupe ASCIA, c'est 70 collaborateurs au sein de 5 agences de proximité - ASCIA ingénierie à HAUTE GOULAINE - IDRB à la Mouilleron le Captif - AEB à Pornichet - EBAC à Vierzon…” Source: RevenueBase Database · checked Sep 16, 2026
20	Oregon	Indirect evidence	Ivry Sur Seine, FranceHQ checked Sep 16, 2026	11-50	35 contacts →
	Indirect evidence “BUREAU D"ETUDES STRUCTURE - BOIS / BÉTON / MÉTAL En associant dans un même projet architectural des matériaux différents, on arrive à optimiser les caractéristiques principales de…” Source: RevenueBase Database · checked Sep 16, 2026
21	Sixense Necs	Indirect evidence	Sceaux, FranceHQ checked Sep 16, 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 16, 2026
22	Osmoz-Ing	Indirect evidence	Genay, FranceHQ checked Sep 16, 2026	11-50	33 contacts →
	Indirect evidence “BET TECHNIQUE : Fluides - Économie de la construction - Structure à GENAY” Source: RevenueBase Database · checked Sep 16, 2026
23	Axyon Ingénierie	Indirect evidence	Collégien, FranceHQ checked Sep 16, 2026	51-200	33 contacts →
	Indirect evidence “AXYON est une société d'ingénierie et d'expertise technique qui existe depuis plus de 30 ans dans les secteurs de l'INDUSTRIE et de la CONSTRUCTION.” Source: RevenueBase Database · checked Sep 16, 2026
24	Arting Engineering	Indirect evidence	Pantin, FranceHQ checked Sep 16, 2026	11-50	33 contacts →
	Indirect evidence “Crée en 1990, notre bureau d’étude ARTING est spécialisé dans la conception et l’installation d’usines, les calculs, l’assistance technique.” Source: RevenueBase Database · checked Sep 16, 2026
25	DYNAS	Partial evidence	Toulouse, FranceHQ checked Sep 16, 2026	11-50	31 contacts →
	Partial evidence “Dynas+ is a technical engineering firm specialized in numerical modelling, which provides its customers (defense, aeronautics, space, automotive.) digital solutions to support and…” Source: RevenueBase Database · checked Sep 16, 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: engineering design optimization 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 engineering design optimization companies.
Partial evidence: Its own public description names part of engineering design optimization companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering design optimization 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 630 engineering design optimization companies based in France

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Engineering design optimization companies based in France at a glance

As of Sep 16, 2026

20.8%Verified-email coverage

11.4Average contacts per company

1-10Median size (employees)

8.6%Largest-city concentration · Paris

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

437

11-50

163

51-200

201-500

1,001-5,000

10001+

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 630 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 engineering design optimization 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 “engineering design optimization 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 engineering design optimization 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 engineering design optimization 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, 1,491 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 16, 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.

Engineering design optimization companies by metro

Engineering design optimization companies in Paris54

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 engineering design optimization 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 engineering design optimization companies are there based in France?

RevenueBase identified 630 engineering design optimization 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?

ECM Engineering Conception Maintenance, headquartered in Paris, tops this list with the largest team on record.

Which city has the most engineering design optimization companies?

Paris leads with 54 headquartered companies, followed by Toulouse (14) and Lyon (13).

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 1,491 verified decision-maker contacts tracked across these 630 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 16, 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.