ST Composites

What ST Composites does

ST Composites (SAS ST COMPOSITES) is a privately-held French SME founded in 1998 by Stéphane TRENTO, headquartered in Labège (Toulouse area), specializing in the design, industrialization, and manufacture of high-performance composite parts and sub-assemblies for the aerospace, defense, space, and drone sectors. The company operates an integrated three-pillar platform spanning R&D (collaborative innovation with OEMs and laboratories on next-generation composites including biosourced resins), Industrialization (process definition, tooling, work station design, supply chain setup, industrial dossiers), and Production (layup, autoclave/oven polymerization, 5-axis robotic machining, surface treatment, assembly, and painting). Core equipment includes an ISO 7 cleanroom, a 2.7m x 4m autoclave rated 250°C/10 bar, 18m³ and 4m³ ovens, a 5-axis robotic machining cell, automated cutting, a paint department, and Zeiss T-Scan 3D metrology with a 3m x 3m granite table.

The business model is B2B enterprise contract manufacturing sold directly to prime contractors and equipment manufacturers (Airbus, Dassault Aviation, Thales Alenia Space, Safran, Stelia Aerospace), with pricing determined per project through quotation based on specifications, qualification requirements, and volumes. ST Composites is qualified for multiple OEM-specific processes — Airbus ADET/AIPS/IGC, Safran 58C811 draping and heat treatment, Stelia insert densification/vacuum molding/CNC — and holds ISO 9001:2015 and EN9100:2018 certifications while pursuing NADCAP and EASA accreditations. Notable programs include the A400M cockpit composites, A350 carbon fiber components, Rafale engine environment parts, Thales Alenia Space satellite reflectors and antennas, and the COPAIN collaborative R&D project with Airbus and Dassault Aviation targeting 30% mass reduction, 50% installation time optimization, and 30% cost reduction on the future aircraft cockpit. The company employs 11–50 staff and reports €251,600 of registered share capital with no disclosed external institutional investors.

Name

ST Composites

Legal name

SAS ST COMPOSITES

Website

https://stcomposites.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

ST Composites is a French SME founded in 1998 that designs and manufactures high-performance composite parts and sub-assemblies for aerospace, defense, space, and drone prime contractors including Airbus, Dassault Aviation, Thales Alenia Space, Safran, and Stelia.

Ownership category

akta.pro rank

Product category

Aerospace Composite Parts Manufacturing

NAICS

Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413), Other Guided Missile and Space Vehicle Parts and Auxiliary Equipment Manufacturing (336419)

SIC

Aircraft & Parts (3720), Aircraft Parts & Auxiliary Equipment, Nec (3728), Guided Missiles & Space Vehicles & Parts (3760)

akta.pro industry

PRIMARYIMABAEAB

Composite Structures & Layup Manufacturing

Industrials, Manufacturing & Construction/Aerospace & Defense Manufacturing/Aerospace Structures, Airframes & Composites

SECONDARYIMABAEAJ

Interior Structural Components (Floor Beams, Seat Tracks, Frames)

Industrials, Manufacturing & Construction/Aerospace & Defense Manufacturing/Aerospace Structures, Airframes & Composites

SECONDARYIMAJAKAC

FRP/GRP & Composite Materials (Resins, Fibers, Core Materials)

Industrials, Manufacturing & Construction/Marine & Shipbuilding/Shipbuilding Materials & Components (Steel, Aluminum, Composites, Prefab Modules)

SECONDARYIMABAEAG

Radomes & Composite/Aero Protective Structures

Industrials, Manufacturing & Construction/Aerospace & Defense Manufacturing/Aerospace Structures, Airframes & Composites

Keywords

• Aerospace composite manufacturing
• Composite parts fabrication
• Aeronautical structural components
• Carbon fiber parts production
• Defense composite manufacturing

Headquarters

HQ city

Labège

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Composite Parts Manufacturing: Design, development, and production of high-performance composite parts and sub-assemblies for aerospace, defense, and space applications. Revenue is generated through direct sales of manufactured parts, prototypes, and series production to prime contractors and equipment manufacturers.
2. R&D and Innovation Services: Collaborative R&D projects with major aerospace manufacturers for new composite technologies, materials, and processes. Includes participation in programs like COPAIN (future cockpit development) and DEPACE (CORAC program) with Airbus and Dassault Aviation.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

ST Composites designs and manufactures high-performance composite parts and sub-assemblies for the aerospace, defense, and space sectors. It operates an integrated three-pillar platform — R&D for new materials and processes, Industrialization for process definition and tooling, and Production covering draping, autoclave/oven curing, machining, surface treatment, assembly, and painting. Customers are prime contractors and equipment manufacturers (Airbus, Dassault Aviation, Thales Alenia Space, Safran, Stelia) receiving prototype and series production parts.

Product overview

ST Composites offers a unified manufacturing platform for high-performance composite parts and sub-assemblies. The core offering encompasses integrated services spanning Research and Development (collaborative innovation with aerospace partners), Industrialization (process definition and production setup), and Production (full manufacturing lifecycle from layup through assembly). All three pillars work together: R&D develops new materials and processes, Industrialization translates them into manufacturable processes and tooling, and Production executes manufacturing using state-of-the-art equipment. The company serves four key sectors: Aeronautics (cockpit/cabin structures), Defense (A400M cockpit and Rafale engine parts), Space (satellite reflectors and antennas), and Drones (composite technology integration).

Differentiator

Problem solved

Functional benefit

Products and services

• High-Performance Composite Parts Manufacturing Design and manufacturing of high-performance composite parts and sub-assemblies for aerospace, defense, and space applications, including structural parts, cockpit and cabin equipment, engine environment parts, and satellite reflector/antenna structures. Sold as contract-manufactured prototype and series parts to OEMs and equipment manufacturers.
• Research and Development (R&D) Services Collaborative R&D services developing next-generation composite materials (including biosourced resins and vegetable fibers), automated processes, and innovative products, executed jointly with primes such as Airbus and Dassault Aviation under programs like COPAIN and DEPACE-CORAC.
• Industrialization Services Industrialization services that define manufacturing processes and production means — including tooling, procedures, work-station layout, supply-chain definition, and industrial dossier creation — to ensure repeatability and quality from quotation through continuous improvement.
• Composite Production (Layup, Curing, Machining, Assembly, Painting) Full-cycle composite part production from raw materials through layup, polymerization (autoclave and oven curing), machining, surface treatment, sub-assembly, and painting of finished composite parts and sub-assemblies.
• Design and Engineering Services Full-cycle engineering services covering component conception, reverse engineering, development of manufacturing and assembly processes, dimensional and non-destructive controls, and FAI and certification phase management for aerospace programs.

Quantifiable outcome

• 30% mass reduction achieved in COPAIN future cockpit project
• +3 more outcomes

Named customers5 records

Segments4 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

Six partnerships are on record, tiered core and minor.

• AirbuscoreStrategic or Co-development PartnerCollaborative R&D partner in the COPAIN project for developing the future aircraft cockpit. ST Composites contributes composite manufacturing expertise for achieving project targets of 30% mass reduction, 50% installation time optimization, and 30% cost reduction. Also qualified supplier for A400M cockpit composites and A350 components.
• Dassault AviationcoreStrategic or Co-development PartnerCOPAIN project partner for future cockpit development alongside Airbus. ST Composites manufactures Rafale fighter jet engine environment composite parts. Partnership focuses on innovative composite solutions for military aircraft applications.
• Thales Alenia SpacecoreStrategic or Co-development PartnerProduces satellite telecommunication reflector structures and antennas for Thales Alenia Space. Long-term partnership for space-grade composite manufacturing with stringent quality requirements.
• Major Materials Laboratories and Engineering SchoolsminorStrategic or Co-development PartnerCollaborative R&D partnerships with principal materials analysis laboratories, engineering schools, and major raw material and equipment manufacturers for developing new composite technologies and processes for aeronautics and space applications.
• Major Raw Material ManufacturersminorStrategic or Co-development PartnerPartnership with principal raw material manufacturers for access to latest composite materials and collaborative development of new composite solutions.
• Equipment ManufacturersminorStrategic or Co-development PartnerPartnership with major equipment manufacturers for access to latest production technologies and collaborative development of manufacturing processes.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• GKN Aerospace: Global Tier 1 aerostructures and engine composite specialist serving Airbus, Boeing, Rolls-Royce, and defense primes. Relevant incumbent comparable to ST Composites for composite aerostructure and engine-adjacent part manufacturing, albeit at vastly larger scale.
• Spirit AeroSystems: One of the world's largest aerostructures manufacturers, supplying composite and metallic fuselage, wing, and propulsion structures to Airbus and Boeing. Provides context on the scale and qualification depth that composite parts suppliers (including ST Composites) operate against.
• Hexcel Corporation: Global leader in advanced composites — carbon fiber, prepregs, honeycomb, and engineered parts — for commercial aerospace, defense, and space. Relevant as both a potential raw material supplier to ST Composites and a benchmark for composite part manufacturing scale and qualification depth.
• FACC AG: Austrian Tier 1 aerospace composites specialist (acquired by AVIC/Wanfeng) serving Airbus, Boeing, Embraer, and others with aerostructures, cabin parts, and engine composites. A larger, publicly benchmarkable composite peer relevant for understanding margins, scale economics, and program positioning relative to ST Composites.

Direct peers

• Loiretech: French supplier of composite tooling, parts, and assembly services to the aerospace industry. Comparable to ST Composites as a French EN9100-certified Tier 2/3 supplier with autoclave, machining, and assembly capabilities serving Airbus and other primes.
• Coriolis Composites: French-headquartered specialist in automated fiber placement (AFP) and composite manufacturing for aerospace. Comparable to ST Composites as a French composite parts innovator serving major primes, with overlapping technology in prepreg layup and autoclave-based part production.
• Multiplast (Groupe Carboman): French composite parts manufacturer serving aerospace, marine, and industrial customers with autoclave-cured structures. Operates at a similar sub-100 person scale to ST Composites and competes in the same European Tier 2/3 composite parts market.
• Duqueine Group: French Tier 2/3 manufacturer of high-performance composite parts and sub-assemblies for aerospace, defense, and industrial markets. Directly comparable to ST Composites in terms of customer base (Airbus, Safran, Dassault, Thales), technology (composite layup, autoclave, machining), and European mid-market positioning.

Emerging players

• Socomore: French specialist in surface treatment, chemical processing, and consumables for composite part manufacturing in aerospace. Adjacent peer to ST Composites given shared French aerospace customer base and complementary role in the composite parts value chain (surface prep/painting).
• Addcomposites: Finland-based specialist in automated composite manufacturing systems and AFP technology with growing aerospace customer traction. Comparable emerging player to ST Composites in the adoption of automation and next-generation composite manufacturing methods.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/st-composites

Compliance4 records

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 ST Composites