Millet Group

What Millet Group does

Millet Group (Groupe MILLET INDUSTRIE) is a family-owned French industrial manufacturer of custom-made windows and entry doors, founded in 1946 by Camille Millet in Beaulieu-sous-Bressuire. The Group operates eight production sites across metropolitan France and La Réunion, employs approximately 825 people, and offers products across four material categories — Aluminium, PVC, Wood, and Multi-material. Its proprietary M3D multimaterial technology (patented thermal break combining aluminium exterior with PVC or wood interior) has reached over 200,000 units sold and equipped more than 100,000 homes in France. The product portfolio also includes the siMple hidden-frame aluminium window (Batimat 2019 Innovation Award), the Alizéa and TandeM aluminium/M3D.s sliding doors, the Camille and Versailles wood ranges, and complementary entry doors, roller shutters, glazing, and integrated Venetian blinds.

The Group's technology stack combines industrial-scale customisation with multicoloration techniques (different colours on interior and exterior surfaces) and a dense set of certifications — NF, CEKAL, Qualicoat, Qualanod, Qualimarine, Acotherm, Label Fenêtre Alu, Fenêtres Bois 21, PEFC, FSC, and ISO 14001. An 800 m² innovation facility (M'Lab, 2022) and dedicated training centres in La Faye and Lyon underpin ongoing R&D and installer upskilling. Proprietary digital tooling (the M-Connect mobile application and the M Espace Pro professional portal) supports B2B ordering and documentation for certified installers.

Revenue is generated through B2B channels serving professional installer networks, building material merchants (négoces), architects and specifiers, and since 2023 a dedicated network for artisan cooperatives (Luminea). Major construction accounts are addressed directly via a longstanding partnership with Bouygues Eiffage (2011). Marketing draws on a multi-channel mix: industry trade shows (Batimat, Equip'Baie), a sports sponsorship of FC Nantes (since 2019), social media, and the company's magazine 'Vu de la Fenêtre'. The Group remains under family control under GROUPE MILLET INDUSTRIE and is headquartered in Bretignolles (Deux-Sèvres), France.

Name

Millet Group

Legal name

MILLET PORTES ET FENÊTRES

Website

https://groupe-millet.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Millet Group is a French family-owned industrial manufacturer of custom-made Aluminium, PVC, Wood, and Multi-material windows and entry doors, operating eight production sites across metropolitan France and La Réunion and serving professional installers, building merchants, architects, specifiers, and enterprise construction accounts.

Ownership category

akta.pro rank

Product category

Window and Door Manufacturing

NAICS

Wood Window and Door Manufacturing (321911), Metal Window and Door Manufacturing (332321), Custom Architectural Woodwork and Millwork Manufacturing (337212)

SIC

Millwood, Veneer, Plywood, & Structural Wood Members (2430), Metal Doors, Sash, Frames, Moldings & Trim (3442)

akta.pro primary industry

Windows (IMADAIAC)

akta.pro secondary industries

Frames, Sashes, Mullions & Subframes (IMADAIAH), Mass Timber & Structural Engineered Wood (CLT, Glulam, NLT/DLT) (IMADADAC)

Keywords

• Custom window manufacturing
• Aluminum windows
• PVC windows
• Wood windows
• Entry doors

Headquarters

HQ city

Bretignolles

HQ country

France

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Windows and Entry Doors Manufacturing: Design, manufacture, and sale of custom-made windows, sliding doors, and entry doors in Aluminium, PVC, Wood, and Multi-material. Products sold through professional distribution networks and directly to installers and specifiers.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels9 records

Core offering

Millet Group designs, manufactures, and sells custom-made windows, sliding doors, and entry doors across four materials — Aluminum, PVC, Wood, and Multi-material (multimatériaux). The company operates 8 production sites across metropolitan France and La Réunion, producing made-to-measure products such as the M3D multimaterial windows, siMple hidden-frame windows, TandeM and Alizéa aluminum sliding doors, Camille and Versailles wood windows, and SYBOIS timber-frame wall systems. Products are sold primarily through B2B professional distribution networks including installer networks, building material merchants, the Luminea artisan cooperative network, and direct sales to architects and major construction accounts.

Product overview

Millet Group is a French manufacturer of custom-made windows and entry doors, offering a comprehensive portfolio across four material types: Aluminum, PVC, Wood, and Multimaterial. The core product lines include M3D multimaterial windows combining aluminum exterior with PVC or wood interior, siMple hidden-frame aluminum windows, TandeM and Alizéa aluminum windows and sliding doors, PVC windows (Cybel/Optimil ranges), and Camille/Versailles wood windows in various architectural styles. Entry door offerings span Grand Trafic aluminum, Grand Vitrage, aluminum/mixed, and PVC contemporary lines. Complementary products include roller shutters with motorizations, integrated Venetian blinds for M3D windows, glazing, and muntins. The company also offers the M-Connect mobile application for professional clients. All products feature customization options including multicoloration technology allowing different interior and exterior colors.

Differentiator

Problem solved

Functional benefit

Products and services

• M3D Multimaterial Windows Proprietary multimaterial windows combining an aluminum exterior with a PVC or wood interior, featuring a patented thermal break for enhanced thermal insulation. Available across TandeM and M3D lines with multicoloration options (different interior/exterior colors). Sold through professional installers for residential and commercial projects requiring superior thermal performance (Uw as low as 1.2 W/(m²·K)).
• siMple Window Hidden-frame aluminum/steel window with invisible hinges, achieving up to 2700mm height without a transom, with ultra-thin 50mm opening profiles. Designed for minimalist contemporary architecture where frame visibility is minimized. Sold to professional installers and architectural projects targeting BATIMAT-awarded innovative design.
• M3D.s Sliding Wall System Wall-sliding doors using the M3D multimaterial technology, providing full opening without compromising thermal and acoustic performance. Designed for renovations and contemporary projects requiring large sliding openings.
• Alizéa Aluminum Sliding Doors Aluminum sliding doors marketed as the slimmest on the market, with 50mm straight opening profiles and an XXL version available. Designed for projects requiring large glass openings with minimalist sightlines.
• Camille Wood Windows French-made wood windows in three architectural styles (Beaulieu contemporary, Opéra traditional, Louvre Haussmannian) featuring mechanical assembly and traditional aesthetics combined with modern thermal performance. Manufactured at the original Beaulieu-sous-Bressuire site using PEFC/FSC-certified wood.
• Versailles Wood Windows High-end custom wood windows and doors manufactured at the Mouen site, launched from the ACIBOIS acquisition. Designed for exceptional projects including heritage building restoration and high-end custom residential builds.
• PVC Windows (Cybel and Optimil Ranges) PVC windows in the Cybel and Optimil ranges, featuring multicoloration technology with dyed, overlaid, and lacquered finish options and multicoloration across interior/exterior. Manufactured at Brétignolles and Saint-Pair-sur-mer facilities.
• Grand Trafic Aluminum Entry Doors (aMplitude) High-traffic aluminum entry doors from the aMplitude range, designed for intensive-use applications such as commercial buildings, collective housing, and tertiary establishments.
• Grand Vitrage Entry Doors Modern-design entry doors featuring large glass surfaces. Targeted at contemporary residential projects emphasising daylight and modern aesthetics.
• Aluminum and Mixed Entry Doors Entry doors in aluminum and multimaterial (mixed wood-aluminum) configurations, offering thermal performance combined with design flexibility. Manufactured at the Saint-Aubin-la-Plaine factory.
• PVC Contemporary and Classic Entry Doors PVC entry doors available in contemporary and classic styles, offering a cost-effective option with multicoloration capabilities. The 2024 tertiary door launch expanded the range for non-residential applications.
• Wood Sliding Doors (Baies vitrées bois) Wood sliding doors (baies vitrées bois) manufactured at the original Beaulieu-sous-Bressuire site, made-to-measure with PEFC/FSC-certified wood, suitable for residential and heritage renovation projects.
• SYBOIS Wood Frame Walls and Façades Timber frame walls and façades (murs à ossature bois) for collective and individual housing, manufactured at the SYBOIS Brétignolles facility. Used in projects such as Center Parcs Loudun and integrated with MOBIX opening concept (2024 Innovation Award).
• M-Connect Mobile Application Mobile application developed for professional Millet clients to facilitate exchanges, manage orders, and support day-to-day business operations. Functions as part of the broader M Espace Pro B2B portal.

Quantifiable outcome

• M3D multimatériaux windows achieved 200,000 units sold by 2014
• +2 more outcomes

Named customers3 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

Feature4 records

Partnerships

Four partnerships are on record, tiered core, major, long-term and infrastructure.

• FC NantescoreGTM or Marketing Partner · 1 January 2019Official partner since August 2019. MILLET branding appears on jersey shorts, LED banners at home matches, and at the Jonelière training center. Partnership used for promotional contests offering match tickets and signed merchandise to customers and prospects.
• Bouygues EiffagemajorStrategic or Co-development Partner · 1 January 2011Strategic partnership established in 2011 for development of MILLET Ile-de-France and large-scale construction projects.
• Precious Wood / Nature Pluslong-termStrategic or Co-development Partner18-year partnership with Precious Wood (forestry company based in Gabon) and Nature Plus (association specializing in natural resource management). Partnership associates researchers, foresters, and the company to support responsible forest management.
• OVHinfrastructureTechnology or IntegrationWeb hosting provider. The company's websites are hosted on OVH's secured servers, which are ISO 27002 and ISO 270005 certified.

Scale indicators9 records

Recent moves13 records

Expansion highlights7 records

Direct peers

• Bel'M: Bel'M is a French specialist in entry doors (PVC, aluminium, wood, mixed), one of Millet's most direct competitors in the entry-door category and a frequent co-bidder on large construction projects.
• KparK: KparK is a leading French window, door and renovation franchise network and one of Millet's main go-to-market competitors for installers and end-customers across France.
• Tryba: Tryba is one of France's leading fenestration brands (part of the Atrya group) and manufactures aluminium, PVC, and wood windows and doors at industrial scale, marketing through a national installer network that closely mirrors Millet's professional-channel strategy.
• Janneau: Janneau is a long-established French manufacturer of custom wood, aluminium and mixed-material windows and doors. It is one of the closest direct competitors to Millet, supplying installers and renovation markets across France.
• Lorillard: Lorillard is a major French window and door manufacturer specializing in PVC, aluminium and mixed-material ranges. It operates through a professional installer network across France and competes directly with Millet in both renovation and new-build.
• Bieber (Groupe B.A.S.): Bieber, part of French industrial group B.A.S., manufactures aluminium, PVC and mixed-material windows and doors across multiple French plants. Its scale, multi-material portfolio and installer distribution closely mirror Millet's model.
• Atlantem: Atlantem is a French industrial group producing PVC, aluminium and timber windows and doors with multi-site manufacturing. Its product breadth and installer-channel positioning make it a direct head-to-head comparable to Millet.

Regional players

• Finstral: Finstral is a leading South-Tyrolean (Italy/Austria) manufacturer of aluminium-PVC windows and doors. It is a peer on multi-material product design and on entrance-door systems, though its primary geographic focus is DACH rather than France.

Broad incumbents

• Atrya: Atrya is the parent holding of Tryba and other French fenestration brands (Ouvêo, Atlantem-adjacent assets historically). As a multi-brand incumbent, it operates broader than Millet but overlaps directly in windows, doors and multi-material solutions.
• Saint-Gobain: Saint-Gobain is a global building-materials incumbent. Its window and door businesses (historically including identities such as La Caledonienne, Glassolutions and ISO projects) make it a broad-incumbent peer overlapping with Millet on glass, framing systems and integrated building envelopes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/GroupeMillet
• Facebookfacebook.com/Milletportesetfenetres
• LinkedInfr.linkedin.com/company/millet-portes-et-fen%C3%AAs---gmi
• Instagraminstagram.com/groupemillet

Compliance11 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries7 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 Millet Group