Company lists · Data refreshed September 2026

Top 25 Custom gear manufacturers based in France

Name: Custom gear manufacturers based in France
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 200 companies tracked

RevenueBase identified 200 custom gear manufacturers headquartered in France as of September 2026 and tracks 1,992 professional contacts across them, including 292 with verified work emails. Corbas is the largest hub.

This list covers custom gear manufacturers 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 30, 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 30, 2026 86% judged on-target in blind review

200Companies

1,992Contacts tracked

292Verified emails

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The 25 largest custom gear manufacturers based in France

Ranked by team size

Top 25 of 200 custom gear manufacturers based in France, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to custom gear manufacturers: 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	Defontaine Rollix	Partial evidence	La Bruffière, FranceHQ checked Sep 30, 2026	1,001-5,000	228 contacts →
	Partial evidence “Defontaine Group is an international group that designs and manufactures complex mechanical parts and sub-assemblies.” Source: RevenueBase Database · checked Sep 30, 2026
2	CMW	Indirect evidence	Corbas, FranceHQ checked Sep 30, 2026	11-50	69 contacts →
	Indirect evidence “Taillage, brochage, rectification, CMW vous propose des solutions de qualité afin d’assurer la fabrication de vos engrenages, grâce à son excellence opérationnelle.” Source: RevenueBase Database · checked Sep 30, 2026
3	Bronze ALU Group	Indirect evidence	La Couture Boussey, FranceHQ checked Sep 30, 2026	51-200	57 contacts →
	Indirect evidence “Bronze Alu conçoit, industrialise et fabrique des pièces et ensembles mécaniques” Source: RevenueBase Database · checked Sep 30, 2026
4	Groupe Gonzales	Indirect evidence	Estrablin, FranceHQ checked Sep 30, 2026	201-500	48 contacts →
	Indirect evidence “Founded in 1971, Gonzales has established a solid reputation for expertise, high-quality services, versatility and responsiveness.” Source: RevenueBase Database · checked Sep 30, 2026
5	MAXEI	Indirect evidence	Monchy Le Preux, FranceHQ checked Sep 30, 2026	51-200	45 contacts →
	Indirect evidence “Créée en 1898, ARRAS MAXEI est une société industrielle française spécialisée dans la conception, fabrication et maintenance de machines & équipements sur mesure pour de nombreux…” Source: RevenueBase Database · checked Sep 30, 2026
6	PTP Industry	Indirect evidence	Raon L'etape, FranceHQ checked Sep 30, 2026	51-200	30 contacts →
	Indirect evidence “PTP INDUSTRY is more than a foundry: It's the Bespoke Power Transmission Products and Cast-Iron Parts Specialist.” Source: RevenueBase Database · checked Sep 30, 2026
7	CORDM	Indirect evidence	Verdun, FranceHQ checked Sep 30, 2026	51-200	29 contacts →
	Indirect evidence “En octobre 1982, la reprise des activités de l’ex-société RDM a été réalisée par quelques personnes fortement expérimentées dans le domaine de l’engrenage, et éprouvant la…” Source: RevenueBase Database · checked Sep 30, 2026
8	DSW	Indirect evidence	Troisfontaines, FranceHQ checked Sep 30, 2026	11-50	24 contacts →
	Indirect evidence “Conception et fabrication de machines spéciales” Source: RevenueBase Database · checked Sep 30, 2026
9	Mecasoka	Indirect evidence	Saint-laurent-blangy, FranceHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence “MECASOKA is a mechanical or industrial engineering company based out of 785 Boulevard Jules César, 6223 Saint-Laurent-Blangy, France.” Source: RevenueBase Database · checked Sep 30, 2026
10	Grimonprez Production Gears	Partial evidence	Chaumontel, FranceHQ checked Sep 30, 2026	11-50	18 contacts →
	Partial evidence “Founded in 2021 in Chaumontel (France), Grimonprez Production Gears (GPG) is a leading expert in manufacturing high-performance gears and gearboxes.” Source: RevenueBase Database · checked Sep 30, 2026
11	Spirotec	Indirect evidence	Valff, FranceHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “NOUVEAUTES : SPIROTEC AERO Depuis janvier 2022, SPIROTEC a ouvert, à Obernai, un nouveau site de production dédié à la fabrication d'engrenages de haute precision et de petites…” Source: RevenueBase Database · checked Sep 30, 2026
12	Mecadaq Marignier	Indirect evidence	Marignier, FranceHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “MECADAQ Marignier est une des 5 sociétés de MECADAQ GROUP, acteur dans le secteur aéronautique et plus particulièrement dans l’usinage « Detail part » de moyenne complexité…” Source: RevenueBase Database · checked Sep 30, 2026
13	Amme Conception	Indirect evidence	Brazey-en-plaine, FranceHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “Depuis sa création en 1997, la société Conception n'a de cesse d'évoluer afin de proposer à ses clients des solutions sur mesure correspondant à leurs besoins Voici les 3 pôles…” Source: RevenueBase Database · checked Sep 30, 2026
14	Mecagear	Indirect evidence	Les Ponts-de-cé, FranceHQ checked Sep 30, 2026	11-50	15 contacts →
	Indirect evidence “Usinage de series usinage de pieces unitaires taillage engrenage de grandes dimensions jusqu a 6 metres” Source: RevenueBase Database · checked Sep 30, 2026
15	Ingenierie ET Ateliers Dufour	Indirect evidence	Vendeuvre Sur Barse, FranceHQ checked Sep 30, 2026	11-50	14 contacts →
	Indirect evidence “Ingénierie et Ateliers DUFOUR succède en 2017 à la société RAMBACH Frères, qui depuis 1973 est spécialisée dans les secteurs d'activités suivants - La chaudronnerie et la…” Source: RevenueBase Database · checked Sep 30, 2026
16	Merger SAS	Partial evidence	Corbas, FranceHQ checked Sep 30, 2026	11-50	13 contacts →
	Partial evidence “Since 1947, the company MERGER designs and manufactures speed Gearboxes in France.” Source: RevenueBase Database · checked Sep 30, 2026
17	LYSI	Indirect evidence	La Ravoire, FranceHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “Lysi Solution, groupe industriel basé en Savoie, spécialiste en usinage et conception des machines spéciales.” Source: RevenueBase Database · checked Sep 30, 2026
18	Usimeca - Atcbe	Indirect evidence	Ormes, FranceHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “À l’origine, USIMECA est une entreprise de mécanique de précision basée à Beaugency.” Source: RevenueBase Database · checked Sep 30, 2026
19	Isère Mold Usinage	Indirect evidence	Saint-jean-de-soudain, FranceHQ checked Sep 30, 2026	11-50	12 contacts →
	Indirect evidence “Notre équipe experte, du bureau d’études aux ateliers de production, maîtrise l’ensemble de la chaîne de valeur et accompagne nos clients depuis l’idée initiale jusqu’à la…” Source: RevenueBase Database · checked Sep 30, 2026
20	Engrenages HPC	Indirect evidence	Dardilly, FranceHQ checked Sep 30, 2026	11-50	11 contacts →
	Indirect evidence “Engrenages HPC, fournisseur de composants mécaniques et de matériels de transmission depuis 1991, vous propose aujourd'hui plus de 30 références standards.” Source: RevenueBase Database · checked Sep 30, 2026
21	Societe Mecanique DE LA Gohelle SMG	Indirect evidence	Noeux Les Mines, FranceHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “SOCIETE MECANIQUE DE LA GOHELLE is a mechanical or industrial engineering company based out of ZONE INDUSTRIELLE N 1 RUE LAVOISIER, NOEUX LES MINES, France.” Source: RevenueBase Database · checked Sep 30, 2026
22	EREM	Indirect evidence	Sotteville Les Rouen, FranceHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “EREM est une société spécialisée en mécanique industrielle, au service des secteurs de la laine minérale, de l'aéronautique, de l'énergie, du ferroviaire.” Source: RevenueBase Database · checked Sep 30, 2026
23	Burdeyron Construction Mécanique R.Burdeyron	Indirect evidence	Decines-Charpieu, FranceHQ checked Sep 30, 2026	11-50	10 contacts →
	Indirect evidence “La société BURDEYRON est spécialisée dans les travaux de mécanique générale.” Source: RevenueBase Database · checked Sep 30, 2026
24	CI Electronics	Partial evidence	Torcé, FranceHQ checked Sep 30, 2026	11-50	9 contacts →
	Partial evidence “CI Electronics specializes in the design, development, and production of custom tools, with particular expertise in machining composite materials.” Source: RevenueBase Database · checked Sep 30, 2026
25	Promea SAS	Indirect evidence	Aspach Michelbach, FranceHQ checked Sep 30, 2026	11-50	8 contacts →
	Indirect evidence “Prestataire indépendant de conseil et Services pour transmissions par engrenages.” Source: RevenueBase Database · checked Sep 30, 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: custom gear manufacturers. 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 custom gear manufacturers.
Partial evidence: Its own public description names part of custom gear manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name custom gear manufacturers. 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 200 custom gear manufacturers based in France

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Custom gear manufacturers based in France at a glance

As of Sep 30, 2026

14.7%Verified-email coverage

10.0Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Corbas

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 200 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 custom gear manufacturers, 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 “custom gear manufacturers”. 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 custom gear manufacturers), 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 custom gear manufacturers, 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, 292 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 30, 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 custom gear manufacturers, 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 custom gear manufacturers are there based in France?

RevenueBase identified 200 custom gear manufacturers 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?

Defontaine Rollix, headquartered in La Bruffiere, tops this list with the largest team on record.

Which city has the most custom gear manufacturers?

Corbas leads with 4 headquartered companies, followed by Decines-Charpieu (2) and Gallardon (2).

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 292 verified decision-maker contacts tracked across these 200 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 30, 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.