What Bronze Alu does

Bronze Alu SAS is a French privately-held aluminum and copper-aluminum foundry founded in 1927 (originally as Fonderie du CUPRO-ALUMINIUM) and headquartered in La Couture-Boussey, Eure, France. The company operates two production sites — its automated French headquarters and a low-cost subsidiary, Bronze Alu Carparti (BAC), in Pitești, Romania, established in 2007. Across 22,000 m² of shop floor and 15 high-pressure die casting (HPDC) units ranging from 180T to 1100T, Bronze Alu produces over 1.3 million parts annually using HPDC, gravity die casting, in-house mold design, CNC machining, and full downstream assembly (mechanical/welded assembly, plastic injection, surface coating, induction-hardening, X-ray inspection). Its core offering is precision aluminum gearbox forks and transmission components supplied to European automotive OEMs and Tier 1/2 suppliers, including Renault, Ford, PSA, Opel, Getrag, and NTN (the latter served as a Rank A preferred supplier from the Romanian site since 2013).

The company runs a B2B enterprise sales motion, exporting 80% of sales internationally and targeting automotive, aerospace (since 2014), railway, energy, and industrial customers. Revenue is generated through project-based, quote-based pricing on finished-to-print parts, with no public pricing or distribution intermediaries. The product portfolio extends into aerospace structural components (with sub-4-month design-to-production lead times enabled by in-house R&D, PhDs, Magma simulation, Catia CAD, and a metallurgy lab), 3D-printed prototyping and spare parts (Ultimaker S5), and 3D metrology (Solutionix C500). Bronze Alu files 2-3 patents per year and holds IATF 16949, ISO 9001, and ISO 14001 certifications.

Financially, the company reported turnover of nearly €40 million in 2019, employs 200-300 people, and is owned by Francis Barge (who took over the predecessor Bronze Acior in 2004) with Romain Rérolle serving as CEO of Bronze Alu Group. The business was recognized on the London Stock Exchange Group's '1000 Companies that Inspire Europe' list in 2019 and is a France Relance laureate. No external institutional, private equity, or venture capital ownership has been disclosed, and the business has not reported any funding rounds.

Name

Bronze Alu

Legal name

Bronze Alu SAS

Website

https://bronze-alu.com

Company type

Private

Founded year

1927

Operating status

Operating

Short description

Bronze Alu SAS is a French privately-held aluminum and copper-aluminum foundry that designs, die-casts, machines, and assembles precision transmission, gearbox, and aerospace components for European and Japanese automotive OEMs, Tier 1/2 suppliers, and aerospace customers across two production sites in France and Romania.

Ownership category

akta.pro rank

Product category

Aluminum Foundry and Precision Die Casting Services

NAICS

Nonferrous Metal Die-Casting Foundries (331523), Aluminum Foundries (except Die-Casting) (331524), Secondary Smelting and Alloying of Aluminum (331314)

SIC

Nonferrous Foundries (Castings) (3360), Miscellaneous Fabricated Metal Products (3490), Coating, Engraving & Allied Services (3470)

akta.pro primary industry

Aluminum Casting & Ingot/Billet/Slab Production (IMAKACAE)

akta.pro secondary industries

Aluminum Fabrication & Finishing (Machining, Anodizing, Coating) (IMAKACAI), Aluminum Value-Added Components (Automotive, Aerospace, Packaging, Building Systems) (IMAKACAM)

Keywords

• Aluminum die casting
• Copper-aluminum alloys
• Gearbox fork manufacturing
• Precision metal casting
• Automotive component supplier

Headquarters

HQ city

La Couture-boussey

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aluminum and Copper-Aluminum Parts Manufacturing: Design, die casting, machining and assembly of precision metal parts for automotive, aerospace, railway, energy and industrial customers. Revenue generated from manufacturing and selling finished components.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Bronze Alu is an aluminum and copper-aluminum foundry that designs, casts, machines, and assembles precision metal parts for automotive, aerospace, railway, energy, and industrial customers. Operations span high pressure die casting (15 HPDC units from 180T to 1100T), gravity die casting, CNC machining, prototyping, and complete assembly, with all steps managed in-house from raw material to finished shipped product across production sites in France and Romania.

Product overview

Bronze Alu is an aluminum foundry providing a comprehensive suite of manufacturing services centered on die casting (HPDC and gravity die casting) for aluminum and copper-aluminum alloys. The company's core products include precision gearbox forks for automotive Tier 1/Tier 2 suppliers and aerospace components. The offering spans the full value chain: prototyping and design, foundry production (15 HPDC units from 180T to 1100T), machining (turning, knurling, induction heat treatment), assembly (welding, coating, X-ray inspection), and injection mold maintenance—all managed by the same team from raw material to shipping. Additional product lines include transmission bars and tulip components for automotive supplier NTN. The company operates two production sites in France and Romania.

Differentiator

Problem solved

Functional benefit

Brands

• Bronze Alu Carparti: Romanian subsidiary of Bronze Alu Group, located in Pitesti, Romania, specializing in manufacturing of transmission bars and machining operations

Products and services

• Aluminum Die Casting High pressure die casting (HPDC) and gravity die casting of aluminum parts using 15 HPDC units from 180T to 1100T capacity, producing over 1,300,000 annual parts. Serves automotive, aerospace, railway, energy, and industrial customers.
• Copper-Aluminum Alloy Casting Gravity die casting of copper-aluminum (cupro-aluminum) alloy parts for various industrial applications, leveraging the company's original 1927 founding capability.
• Gearbox Forks Precision aluminum gearbox forks for automotive transmissions, including 100% aluminum designs without steel brackets or plastic overmolding, supplied to Renault, Ford, Getrag, PSA, and Opel.
• Aerospace Components Aerospace-grade aluminum and copper-aluminum parts including armrests and structural components, developed with custom alloy and heat-treatment processes for aerospace manufacturers.
• Transmission Bars Machined steel transmission bars with diameters up to 35mm and lengths between 400-700mm, knurled at ends, heat-treated by induction, supplied to NTN.
• Tulip Components Machined tulip (transmission) components for NTN transmission assemblies, produced in the Romania facility.
• Transmission Bearings HPDC aluminum prototypes and small series production of transmission bearings for NTN.
• Machining Services Turning and machining of raw castings and forgings from various materials including steel bars, with knurling, induction heat treatment, and dimensional control capabilities.
• Assembly Services Complete assembly operations including mechanical and welded assembly, plastic injection, surface coating, induction-hardening, sandblasting, polishing, tumbling, X-ray inspection, and dimensional control, delivering finished-to-print parts.
• Prototyping and Design Services Full product development from early design to production including new alloy development, specific heat-treatment, prototype manufacturing, and serial process setup, supported by CAD stations and Magma simulation capabilities.
• Injection Mold Design and Maintenance In-house toolshop for designing and maintaining injection molds for high pressure die casting operations, integrated with the foundry process.

Quantifiable outcome

• 100% recyclability rate of products using only recycled raw materials
• +4 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• NTN (New Technology Network)coreStrategic or Co-development Partner · 1 January 2013Bronze Alu serves as a preferred supplier (Rank A) for NTN, a major Japanese bearing and transmission seal manufacturer. Collaboration began in 2013 when NTN assigned Bronze Alu to produce transmission bars at its BAC site in Pitești, Romania. NTN has 29 plants worldwide, 4 R&D centers, and over 25,000 employees with USD 6.8 billion in sales. Bronze Alu provides machining, heat treatment, and assembly services for transmission bars, tulips, and bearings. Bronze Alu was ranked as preferred supplier with 100% recurrent service rate and no quality incidents.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Dynacast (Form Technologies): Global precision metal die caster producing aluminum and zinc components for automotive, industrial, and consumer applications. Comparable in multi-process die casting (HPDC and gravity) with machining and finishing capabilities.
• Nemak: Mexican-headquartered global supplier of aluminum components for the automotive industry, including HPDC engine, transmission, and structural parts. Direct competitor in automotive aluminum die casting serving global OEMs at much larger scale.
• Endurance Technologies: Indian automotive component manufacturer with significant aluminum die casting capabilities serving global OEMs including transmission and chassis parts. Comparable in automotive aluminum casting with European OEM exposure.
• Shiloh Industries: US-based supplier of lightweight aluminum and magnesium die castings, including engine, transmission, and chassis components. Comparable in HPDC components for automotive OEMs, particularly in NVH and lightweighting.
• Martinrea International (Honsel): Canadian automotive supplier with European aluminum die casting operations (Honsel) producing chassis, powertrain, and structural components for European OEMs. Comparable in automotive HPDC and machined parts to German/European OEMs.

Broad incumbents

• Howmet Aerospace: Global leader in aerospace structural aluminum castings and nickel alloys. Comparable on the aerospace side as Bronze Alu expands into aerospace parts; much larger scale and deeper aerospace qualifications.
• Georg Fischer AG: Swiss diversified industrial group with a significant GF Casting Solutions division producing automotive and industrial aluminum and iron castings. Comparable in aluminum HPDC and machining, but operates at much larger scale and broader product portfolio.
• KSPG (Rheinmetall Automotive): German automotive supplier (part of Rheinmetall) producing aluminum engine and transmission components. Comparable in aluminum powertrain components and serves many of the same European OEMs as Bronze Alu.
• Ryobi Die Casting: Japanese-owned global aluminum die caster serving automotive transmission, engine, and structural applications. Direct comparable in HPDC for transmission components and gearbox-related parts.

Regional players

• STIHL (foundry operations): German power tools manufacturer with significant in-house die casting (foundry at Waiblingen) producing aluminum components. Comparable in European aluminum HPDC foundry operations though primarily captive.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/bronze-alu-groupe

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 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 Bronze Alu