What DEMECA does

DEMECA is a French precision machining company founded in 1948 in Saint-Étienne, Loire, that machines and assembles mechanical parts and sub-assemblies for industrial customers. Its core offering covers CNC milling, turning, grinding, broaching, and drilling, executed on a diversified Mori Seiki machine park — eight NH5000 horizontal machining centers, three SV400 vertical machining centers, and five ZL25 CNC lathes — supplemented by Blanchard and Jung grinding equipment, a Varinelli vertical broaching machine, and a climate-controlled metrology laboratory anchored by a Zeiss coordinate measuring machine. The company is ISO 9001:2015 certified by Bureau Veritas and holds FANUC CNC programming expertise in-house.

The company serves large industrial manufacturers across automotive (Stellantis), heavy trucks (Renault Trucks, Volvo Trucks), drivetrain and chassis (ZF Friedrichshafen), and electrical equipment (Schneider Electric), as well as public works, agricultural machinery, defense, railway, maritime, and — per recent website copy — nuclear, tire, and textile industries. Value-added services beyond machining include thermal treatments, surface coatings, mechanical assembly with leak testing, and outsourced operations such as gear cutting and ultrasonic inspection. Production spans prototype (5–20 pieces) through large series (1,000+ units) with a stated preference for recurring, flow-managed contracts.

DEMECA generates revenue through project-based, quote-driven B2B contracts with industrial buyers. Pricing is not publicly disclosed and varies by part complexity, material, and volume. The company operates from a single facility at 13 & 15 Rue Danton, Saint-Étienne, and is privately held under Director/CEO Jean-Pierre Charbonnier, with no disclosed external investment, parent company, or M&A activity.

Name

DEMECA

Legal name

DEMECA SAS

Website

https://demeca.fr

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

51–100 employees

Short description

DEMECA is a French precision machining company founded in 1948 in Saint-Étienne that manufactures and assembles precision mechanical parts for industrial customers including Stellantis, Renault Trucks, Volvo Trucks, ZF, and Schneider Electric across automotive, heavy truck, defense, railway, and other industrial sectors.

Ownership category

akta.pro rank

Headquarters

HQ city

Saint-Étienne

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain

Revenue model

1. Precision Parts Manufacturing: One-time manufacturing services for precision mechanical parts and assemblies. Customers provide specifications and DEMECA machines parts in prototype, small, medium, and large series. Revenue is generated through project-based orders with pricing based on complexity, materials, and production volume.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

DEMECA provides precision machining services for industrial clients, including CNC milling, turning, grinding, broaching, and drilling of mechanical parts and assemblies. Production covers prototypes through large series (5 to 1000+ pieces), supported by in-house metrology, heat treatment, surface coating, and assembly services for sectors including heavy trucks, public works, agricultural machinery, defense, automotive, railway, electrical, and maritime.

Product overview

DEMECA (Founded 1948) is a French precision machining company offering a unified set of manufacturing services centered on precision machining (usinage de précision). The core offering encompasses CNC milling, turning, grinding, broaching, and drilling operations performed on specialized Mori Seiki equipment. Production spans prototype through large-scale series (5 to 1000+ units). The company differentiates through integrated value-added services including heat treatment, surface coatings, assembly with leak testing, and in-house metrology with ISO 9001:2015 certified quality management. Primary clients include Stellantis, Renault Trucks, Volvo Trucks, ZF Friedrichshafen, and Schneider Electric across truck, public works, agricultural machinery, defense, automotive, railway, electrical, and maritime sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Precision Machining Services Core contract machining service covering milling, drilling, turning, and broaching of mechanical parts and assemblies for industrial sectors including trucks, public works, agricultural machinery, defense, automotive, railway, electrical, and maritime. Production covers prototype, small, medium, and large series.
• CNC Turning Services CNC turning of cylindrical parts using 5 Mori Seiki ZL25 lathes (diameter 150 to 300 mm, max length 610 mm) for industrial clients requiring precision rotational components.
• Grinding Services Precision grinding services using 3 Blanchard grinders (max diameter 900 mm), 2 Jung internal grinders (max diameter 100 mm, depth 150 mm), and 2 external CC grinders (point height 125 mm, center distance 1000 mm) for tight-tolerance surface finishing.
• Broaching Services Broaching services using a Varinelli vertical broaching machine with 3-spindle capacity and 1250 mm stroke for keyway and complex internal profile machining on industrial parts.
• Mechanical Assembly Services Assembly and sub-assembly services composed of DEMECA-machined elements combined with commercially sourced parts, including leak testing capabilities for finished industrial assemblies.
• Heat Treatment and Surface Coating Outsourced thermal treatments (nitriding, carburizing, vacuum hardening) and surface coatings (zinc plating, nickel plating, burnishing) plus painting services applied to machined parts.
• Metrology and Quality Control Services In-house dimensional verification and quality control in a climate-controlled metrology laboratory equipped with an automated Zeiss coordinate measuring machine (700 X 1000 X 600), a manual Roch CMM, Baty profile projector, Digimar and Tesa height columns, and Mahr digital measuring devices, supporting ISO 9001:2015 certified quality management.

Quantifiable outcome

• Quality certification ISO 9001:2015 ensures consistent quality delivery to assembly lines

Named customers5 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves4 records

Expansion highlights3 records

Broad incumbents

• FORVIA (formerly Faurecia): Global Tier 1 automotive supplier with significant European manufacturing footprint in metal and mechatronic components. Comparable customer overlap (Stellantis, Renault) and serves similar commercial vehicle and industrial segments, though much larger and broader in scope.
• Magna International: Global Tier 1 automotive supplier with broad portfolio including metal forming, machining, and assemblies. Comparable in serving Stellantis and other major OEMs with precision components, though at vastly larger scale and as part of a diversified portfolio.

Direct peers

• Linamar Corporation: Canadian contract manufacturer of precision machined components and assemblies for automotive and industrial OEMs globally. Comparable in precision CNC machining services, multi-sector end-market exposure (auto, truck, industrial), and tier-1 customer relationships.
• Aubert & Duval: French producer of high-performance alloys, parts, and precision components for aerospace, defense, energy, and industrial OEMs (Eramet subsidiary). Comparable in serving certified, high-spec industrial customers with precision parts and ISO-certified quality systems.
• Figeac Aéro: French precision machining and subcontracting group serving aerospace, defense, and industrial OEMs from multiple sites. Comparable in offering tier-3 precision parts manufacturing, multi-axis CNC capability, and exposure to demanding end-sectors (aerospace parallels DEMECA's defense and rail exposure).
• Martinrea International: Canadian Tier 1 supplier of lightweighting, precision components, and assemblies to global OEMs. Comparable in precision metal parts manufacturing, automotive and heavy truck customer overlap, and project-based contract manufacturing model.
• LISI Group: French manufacturer of precision fasteners, machined components, and assemblies for aerospace, automotive, and industrial markets. Comparable in serving similar blue-chip OEM customers, providing certified precision parts production, and operating in safety-critical industries.
• Mécachrome: French precision machining specialist serving aerospace, automotive, and motorsport with high-tolerance components. Directly comparable in core machining services, customer base overlap (automotive and high-spec industrial OEMs), and value-added assembly offerings.

Others

• Sandvik AB: Swedish engineering group supplying cutting tools, CNC tooling, and metalworking solutions globally. Comparable as a critical supplier to the precision machining industry DEMECA operates in, supplying CNC tooling that DEMECA uses in its production.
• Kennametal Inc. US-listed manufacturer of metalworking tools and wear-resistant solutions. Comparable as tooling and consumables supplier to precision machining job shops, an enabling ecosystem participant rather than direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/demeca-loire

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about DEMECA