DeJoie

What DeJoie does

DeJoie is a French specialty manufacturer headquartered in Nantes, founded in 1929 and operating today as a subsidiary of the LEMER Group. The company runs two distinct business units: Dejoie Aluminium, which provides aluminum foundry services via gravity die casting for parts ranging from 50g to 15kg in small-to-medium production runs (100 to 20,000 parts per year), with in-house capabilities spanning CAD/CAM design, machining, chrome-free ROHS-compliant surface treatment, ceramic vibratory finishing, ball polishing, painting, and assembly; and Dejoie Scellé, which designs and distributes plastic, metal, and lead security seals for tamper-evidence, traceability, and access control. Beyond these two units, Dejoie holds an exclusive contract to manufacture the iconic yellow French postboxes for La Poste, a relationship dating to a 1949 PTT tender win.

The company serves regulated and demanding end-markets including medical/healthcare, industrial manufacturing, transport and logistics, fire safety and security, energy utilities (gas, water, electricity metering), public institutions, and postal services. Its go-to-market is sales-led and direct, with named sales contacts for each business unit (Guillaume Julien for aluminum, Gaetan Le Piouffle for seals), supported by a bilingual corporate website, social media presence, and an ecosystem of partnerships with technical centers (Cetim), engineering schools (Arts et Métiers, ENSAD), design agencies, and industry federations. Revenue is generated through one-time sales of manufactured products, quote-based on specification, volume, and customization, with no subscription or licensing model apparent.

DeJoie positions itself as a human-sized enterprise (~10 employees within a parent group of ~70) leveraging nearly a century of accumulated craft expertise, regulatory compliance (ROHS, EcoVadis-validated CSR), and exclusive institutional relationships to compete in niche industrial segments underserved by high-volume manufacturers. Distribution is primarily direct in France with international reach via a dedicated sales channel; products are available in stock or made-to-order with personalization and fast delivery options.

Name

DeJoie

Legal name

Dejoie

Website

https://dejoie.com

Company type

Private

Founded year

1929

Operating status

Operating

Headcount range

1–10 employees

Short description

DeJoie is a Nantes-based French specialty manufacturer (founded 1929, ~10 employees, LEMER Group subsidiary) producing gravity die-cast aluminum parts, security seals, and exclusive yellow La Poste postboxes for industrial, medical, logistics, and public-sector customers.

Ownership category

akta.pro rank

Headquarters

HQ city

Boulevard

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Aluminum Foundry Products: Design, manufacture and distribution of aluminum alloy parts from raw materials to assembled sub-assemblies. Services include casting, machining, surface treatment, painting and assembly. Targets small to medium production runs.
2. Security Seals: Design and distribution of security seals for tamper-evidence, traceability and access control. Includes plastic, metal, and lead seals in various configurations. Products available in stock or on demand with customization options.
3. Yellow Post Boxes (La Poste): Manufacturing of famous yellow mailboxes for La Poste since 1949. Exclusive manufacturer of French post boxes.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

DeJoie designs, manufactures and distributes aluminum alloy parts via gravity die casting (50g to 15kg, small to medium production runs) with full in-house finishing (machining, chrome-free surface treatment, painting, assembly), and produces a range of security seals (plastic, metal, lead) for tamper-evidence, traceability, and access control. The company is also the exclusive manufacturer of the iconic yellow French post box for La Poste since 1949.

Product overview

DeJoie operates as a dual-specialist industrial company with two distinct sub-brands: Dejoie Aluminium (aluminum foundry services including gravity die casting, machining, surface treatment, and assembly) and Dejoie Scellé (security seals including plastic, metal, and lead variants for tamper-evidence and traceability). Additionally, the company manufactures the iconic yellow post boxes for La Poste since 1949. The portfolio spans from raw material production to finished, ready-to-use components serving medical, industry, transport, safety, energy, and public equipment sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Dejoie Aluminium: Aluminum foundry services including gravity die casting, machining, surface treatment, and painting.
• Dejoie Scellé

Products and services

• Dejoie Aluminium (Aluminum Foundry Services) Aluminum foundry services including gravity die casting of aluminum alloy parts (50g to 15kg) for small to medium production runs (100 to 20,000 parts/year), with in-house CAD/CAM design, machining, chrome-free ROHS surface treatment, vibratory finishing, painting, and assembly operations.
• Dejoie Scellé (Security Seals) Security seals for tamper-evidence, traceability, and access control, including plastic seals (adjustable and fixed), metal seals, lead seals, and numbered/personalized/color-coded variants. Recyclable and biodegradable options available; products offered in stock or on demand with customization.
• Yellow French Post Boxes (La Poste) Iconic yellow French mailboxes manufactured exclusively for La Poste (formerly PTT) since 1949 for nationwide postal collection; also distributed to individuals and collectors via partner La Boite Jaune.

Named customers2 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

13 partnerships are on record, tiered minor and core.

• ANOXAminorStrategic or Co-development PartnerSpecialist in design and manufacture of access equipment, collective protection equipment and metal furniture. Partnership supports Dejoie's product development and metal furniture offerings.
• Arts et MétierscoreStrategic or Co-development PartnerEcole Nationale Supérieure d'Arts et Métiers - prestigious French engineering school specializing in industry of the future and technology. Partnership for innovation and technical development.
• CetimcoreStrategic or Co-development PartnerTechnical Centre for Mechanical Industries - expertise in applied research, support for manufacturers, comprehensive consulting and engineering services.
• Emmanuel Cairo DesignerminorStrategic or Co-development PartnerDesign agency specializing in product design, urban design, street furniture, and transport design.
• ENSADminorStrategic or Co-development PartnerEcole nationale des Arts Décoratifs - National School of Decorative Arts, focused on contemporary decor design and creative innovation.
• Exa DesignminorStrategic or Co-development PartnerIndustrial product design agency supporting product development and innovation.
• Fonderie LemercoreStrategic or Co-development PartnerLead and low-melting-point alloy foundry. Parent company of Dejoie since 1988. Specialist in casting of lead and low melting point alloys, strengthening Dejoie's industrial capabilities.
• Forge Fonderie FédérationminorStrategic or Co-development PartnerFrench professional organisation for companies involved in metal forming through forging, casting, additive manufacturing and associated machining.
• Groupe OTSminorImplementation/ SI/ Consulting PartnerSubcontractor in fine and industrial sheet metal work, precision mechanics, painting, assembly and installation. Supports Dejoie's value-added services.
• La Boite JauneminorChannel Partner/ Reseller/ DistributorPersonalisation and sale of DEJOIE letterboxes for individuals and collectors. Distributor channel for post box products.
• MedefminorStrategic or Co-development PartnerFrance's leading network of entrepreneurs focused on job creation and sustainable growth. Industry association membership.
• UIMM Loire-AtlantiqueminorStrategic or Co-development PartnerProfessional organisation promoting the competitiveness of industrial companies and employment in Loire-Atlantique region.
• EcoVadiscoreStrategic or Co-development PartnerSustainability rating platform that Dejoie collaborates with to assess and communicate their environmental and social performance as part of their CSR commitment.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Dynacast: Global precision metal die caster producing small, complex nonferrous components across automotive, industrial and consumer goods. Comparable in die-casting technology, though focused on high-volume serial production.
• Pace Industries: One of North America's largest aluminum and zinc die casting companies, serving automotive, industrial and consumer markets. Comparable in nonferrous die-casting production though at much higher volume than Dejoie's small/medium-run niche.
• TydenBrooks (EJ Brooks): Large North American provider of security seals, cargo seals and tamper-evident products across utilities, transport and logistics. Comparable in security-seal product category but at significantly larger scale than Dejoie.

Direct peers

• ANOXA: French designer and manufacturer of access equipment, collective protection equipment and metal furniture; a strategic partner of Dejoie. Comparable as a French metal-fabrication specialist serving public and industrial customers.
• American Casting & Manufacturing: US-based manufacturer of security seals and custom metal stampings for utility, cargo and industrial applications. Directly comparable product overlap with Dejoie Scellé's security seal portfolio.
• Caliplast: French plastic injection moulding specialist that is a strategic partner of Dejoie for plastic seal production. Comparable as a custom plastics parts manufacturer serving security, medical and industrial customers in France.
• Fonderie Lemer: Parent company of Dejoie and a French specialist in casting of lead and low melting point alloys. Directly comparable as a French foundry group operating in similar metal-casting niches and sharing customer relationships.

Regional players

• Unicast (State Cast): French nonferrous foundry specializing in sand and gravity die casting for industrial markets. Closely comparable to Dejoie Aluminium in process technology and French customer base, but serves different geographies.
• Fonderie de Bretagne: French regional foundry offering cast iron and nonferrous casting for industrial clients. Comparable nonferrous foundry operations in the same French market, though typically serving larger castings than Dejoie's range.

Emerging players

• Fortress Security Seals: Specialty manufacturer of tamper-evident and security seals for logistics, utilities and healthcare. Directly comparable in security-seal product category to Dejoie Scellé, though primarily serving North American markets.

Market position

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/FonderieDejoie
• Facebookfacebook.com/FonderieDejoie
• LinkedInlinkedin.com/company/dejoie

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 DeJoie