SMA

What SMA does

SMA (legal name S.M.A., SARL; SIREN 410926539) is a privately held French custom metalwork and locksmithing workshop founded in 1997 and headquartered in Villebon-sur-Yvette, Essonne, in the Île-de-France region. The company designs, fabricates, and installs bespoke steel and aluminum metalwork for private individuals, architects, and a select base of luxury and institutional clients. Core products include verrières (interior glazed partitions and rooftop skylights), staircases and balustrades, thermally broken metal joinery (menuiserie métallique), gates and fences, bay windows (Bow-Windows), wine cellars, and entrance canopies (marquises). SMA uses specialized thermally broken profile systems from partners RP Technik (Fineline, Isofine) for energy-efficient glazing, and partners with GK Techniques for finishing and powder coating.

SMA operates a direct, project-based sales model. Each engagement follows a quote-based pricing flow: initial consultation, technical measurement (prise de cote), custom design, workshop fabrication in the company's 800 m² facility, and on-site installation. The business has no recurring revenue streams, no resellers or marketplace listings, and no formal digital marketing program beyond a portfolio website and organic social media presence (LinkedIn, Instagram, Facebook). The team consists of 6–7 collaborators (metallers, a designer/draughtsman, and installers), currently led by director Benjamin Baudu, a former Compagnon du Devoir. Revenue is not disclosed; clients are distributed across residential and architect-led projects in France, with episodic high-profile work for luxury brands (Diptyque London and New York boutiques, Lalique headquarters) and heritage sites (Synagogue of Paris, Tour d'Auxerre).

Name

SMA

Legal name

S.M.A., SARL

Website

https://sma-serrurerie.fr

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

1–10 employees

Short description

SMA is a French artisanal metalwork workshop founded in 1997 that designs, fabricates, and installs bespoke steel and aluminum verrières, staircases, balustrades, and metal joinery for private individuals, architects, and luxury/institutional clients across France.

Ownership category

akta.pro rank

Headquarters

HQ city

Villebon-sur-Yvette

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom fabrication and installation: SMA generates revenue through the design, fabrication, and installation of bespoke metalwork projects. Revenue is project-based, with each contract covering conception, workshop fabrication, and on-site installation. No recurring revenue streams are indicated.
2. Professional installation services: Installation and on-site fitting services are included as part of the project delivery, covering the complete project lifecycle from initial consultation through final handover.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels4 records

Core offering

SMA is a French metalworking and locksmithing workshop that designs, fabricates, and installs custom steel and aluminum products. Its core offerings are verrières (glazed partitions and skylights), staircases, balustrades, and thermally broken metal joinery, plus bespoke projects such as gates, bay windows, wine cellars, and canopies. The company manages the complete project lifecycle in-house, from initial design consultation through workshop fabrication in its 800 m² facility to on-site installation.

Product overview

SMA is a French metalworking and locksmithing workshop offering custom-designed, fabricated, and installed steel and aluminum products. The core product portfolio centers on three main categories: Verrière (custom skylights and glazed structures), Escalier & Garde-corps (staircases and railings), and Verrière de Toiture & Menuiserie Métallique (roof skylights and metal joinery). Additional custom projects include steel gates, bay windows (Bow-Windows), wine cellars, and entrance canopies. All products are manufactured in France using materials including steel, aluminum, glass/vitrage, and specialized coatings. SMA also offers thermal break profile systems (Fineline, Isofine) for energy-efficient glazing solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Verrière (Glazed Partition / Skylight) Custom steel and glass verrières for interior separation and rooftop applications, including fixed and opening designs with optional decorative stained glass. Designed, fabricated, and installed by SMA for private individuals, architects, and commercial clients.
• Escalier & Garde-corps (Staircase and Railing) Bespoke steel staircase design and fabrication in straight, quarter-turn, spiral, cantilevered, and Japanese-step configurations, combined with steel, oak, glass, or integrated LED handrail balustrades. Suitable for residential, commercial, and heritage projects.
• Verrière de Toiture & Menuiserie Métallique (Roof Skylight and Metal Joinery) Roof skylights and custom metal joinery featuring thermal break profiles (Fineline, Isofine systems) with double glazing for energy efficiency. Targeted at energy-conscious residential and architectural projects.
• Portails & Clôtures (Gates and Fences) Custom steel gates and fences, including sliding and swinging designs with integrated pedestrian gates, fabricated and installed by SMA.
• Bow-Windows (Steel Bay Windows) Steel bay windows using ultra-fine Fineline profiles with thermal break technology and epoxy paint finish, custom fabricated and installed.
• Caves à Vin (Wine Cellars) Bespoke steel wine cellar installations designed, fabricated, and installed by SMA for private clients.
• Marquise (Entrance Canopy) Custom steel canopy/awning for building entrances, designed and fabricated by SMA.

Quantifiable outcome

• 27 years of experience since 1997
• +3 more outcomes

Named customers6 records

Segments3 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

Three partnerships are on record, tiered core.

• Diptyque (London boutique)coreOthersSMA created 4 verrières with opening vents, graceful arches, and stained glass for the Diptyque boutique in London. This project demonstrates SMA's capability to execute high-end retail fit-out projects for luxury brands.
• Diptyque (New York boutique)coreOthersSMA created a fixed verrière with graceful arches and stained glass for the Diptyque boutique in New York. This international project for a luxury brand showcases SMA's reach and quality in premium retail installations.
• LaliquecoreOthersSMA carried out restoration of a verrière with stained glass for the Lalique headquarters (Siège Lalique). This heritage restoration project demonstrates SMA's capability in conservation and restoration work.

Scale indicators5 records

Recent moves5 records

Expansion highlights3 records

Broad incumbents

• Wicona: European aluminium systems manufacturer for façades, windows and doors. Overlaps with SMA's metal joinery and verrière offerings at the profile-system level; serves large construction projects rather than individual ateliers.
• Saint-Gobain: French global building materials group whose distribution arms (e.g., POINT.P, La Plateforme du Bâtiment) supply metalwork contractors and compete for renovation and new-build demand that SMA also addresses.
• Lapeyre: French home improvement retail brand selling windows, doors, staircases and metalwork products. Addresses overlapping end-customer demand for verrières, balustrades and staircases, but via standardised catalogue offerings rather than custom fabrication.
• Reynaers Aluminium: Major European manufacturer of aluminium window, door, façade and verrière systems serving the architectural market. Competes with SMA at the systems/frame level on verrières and metal joinery, though as a high-volume producer rather than custom atelier.
• Schüco: German global supplier of aluminium, steel and PVC-U window, door and façade systems. Competes in the same verrière and metal joinery category SMA serves via its Fineline/Isofine expertise, but at industrial scale.
• Technal: French brand (part of Hydro) producing aluminium architectural systems for windows, doors, façades and verrières. Overlaps with SMA in thermally broken profiles and metal joinery, but sells standardised systems rather than bespoke fabrication.

Others

• RP Technik: German manufacturer of steel profile systems including the Fineline thermally broken range that SMA uses. Functions as a key upstream supplier/partner for SMA's energy-efficient metal joinery and verrière projects.

Direct peers

• Atelier François Pouenat: French artisan metalworking atelier focused on bespoke decorative and architectural metalwork for luxury residences and heritage projects. Comparable in product scope (custom staircases, balustrades, gates) and in serving architects and luxury private clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/serrurerie-m%C3%A9tallerie-aluminium
• Instagraminstagram.com/sma_serrurerie_metallerie

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 SMA