TechnoCarbon

What TechnoCarbon does

TechnoCarbon Technologies France SAS, founded in 2018 after COP23 and headquartered in Paris with a pilot production workshop in Vitrolles, develops and commercializes Pierre-Carbone (also marketed as CarbonFibreStone or CFS), a patented stone-carbon fiber layered composite material. The composite is manufactured from granite or basalt stone and carbon fiber — representing 99% of the composition — assembled using patented low-temperature curing processes registered with the EPO and INPI. The material is positioned as a low-carbon alternative to steel and reinforced concrete, with claimed performance of 5x greater durability, 4x higher stress resistance than aluminum or concrete, 3x lower weight than steel at equivalent mechanical resistance, and a 90% lower carbon footprint in manufacturing. Inputs can include glass, ceramics, or recycled materials, and the end-of-life cycle separates carbon fiber and stone for full recyclability.

The company sells semi-finished Pierre-Carbone products (thin and thick sheets, walls, beams, building elements, pipes) and finished products (heated countertops, wall-mounted convectors) directly to B2B customers. Target segments span building & construction as the primary vertical, plus infrastructure, energy (including solar structures), defense & aerospace, marine, and design applications. Pricing is custom B2B and not publicly disclosed. Distribution is via direct enterprise sales to industrial players, architects, real estate developers, OEMs, and public infrastructure planners. The go-to-market is supported by certifications in progress with CSTB and Cerema, regional government backing from Métropole du Grand Paris and Région SUD, and cluster memberships (Capenergies, Ze-Box, Cleantech Open, Bpifrance Deeptech).

TechnoCarbon is a venture-backed private company in pre-commercial to early-commercial stage. Total disclosed equity funding is approximately €1.8 million (a ~€800K Sowefund round in October 2022 and a €1M Sowefund round in August 2024), supplemented by earlier grant and prize money from MassChallenge, Hub71, L'Atelier Azur, and Gothams UAE between 2020 and 2022. The team is 1-10 employees, and the 2024 corporate objective is to deliver first demonstrators and book first firm orders from the new Vitrolles pilot line. There is no public revenue disclosure. The company is led by founder and President Stephan Savarese and Managing Director Stéphane Astic.

Name

TechnoCarbon

Legal name

TechnoCarbon Technologies France

Website

https://technocarbon.tech

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

TechnoCarbon Technologies France is a French deep-materials cleantech startup that develops and sells Pierre-Carbone (CarbonFibreStone), a patented low-carbon stone-and-carbon-fiber composite alternative to steel and concrete, serving B2B customers in construction, infrastructure, energy, aerospace, defense, and marine sectors.

Ownership category

akta.pro rank

Product category

Advanced Composite Building Materials

NAICS

Carbon and Graphite Product Manufacturing (335991), Plastics Material and Resin Manufacturing (325211)

SIC

Plastic Materials, Synth Resins & Nonvulcan Elastomers (2821)

akta.pro primary industry

Mineralization & Carbon-Cured Materials (In-situ/Ex-situ) (EUABAFAD)

akta.pro secondary industries

Functional Carbon Fillers (Carbon Black, Graphite) (IMAEAFAO), Carbon‑Based Carbon Materials (graphite, carbon black, CNTs, graphene from CO₂/CO) (EUABAIAG)

Keywords

• Low-carbon composite materials
• Stone-carbon fiber composites
• Sustainable building materials
• Advanced composite manufacturing
• Cleantech industrial materials

Headquarters

HQ city

Vitrolles

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Composite Material Sales: Sale of Pierre-Carbone (CFS) semi-finished products including thin and thick sheets, walls, beams, building elements, pipes, and other parts for equipment and consumer goods. Also finished products such as heated countertops and wall convectors.
2. Finished Product Sales: Finished products including heated countertops (comptoirs chauffants) and wall convectors (convecteurs muraux) sold directly to customers.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels7 records

Core offering

TechnoCarbon develops and manufactures Pierre-Carbone (CarbonFibreStone/CFS), a patented stone-carbon fiber layered composite material cured at low temperature, made primarily from granite or basalt stones and carbon fiber (99% of composition). The company sells semi-finished products (thin and thick sheets, walls, beams, construction elements, pipes) and finished products (heated countertops, wall convectors) to industrial customers in construction, infrastructure, energy, defense, aerospace, marine, and design sectors.

Product overview

TechnoCarbon offers Pierre-Carbone (also known as CarbonFibreStone or CFS®), a family of high-performance low-carbon composite materials made from granite or basalt stones and carbon fiber. The product portfolio includes semi-finished forms (thin and thick sheets, walls, beams, construction elements, pipes) and finished products (heated countertops, wall-mounted convectors). Pierre-Carbone delivers 5x greater durability than steel and concrete, is 3x lighter than steel, and has a carbon footprint 90% lower than conventional materials, making it suitable for building, infrastructure, energy, defence, aerospace, and design sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Pierre-Carbone (CFS): High-performance low-carbon composite material made from stone (granite or basalt) and carbon fiber
• CarbonFibreStone (CFS)

Products and services

• Pierre-Carbone (CarbonFibreStone/CFS) Composite Material
• Pierre-Carbone Semi-finished Products
• Pierre-Carbone Finished Products (Heated Countertops and Wall Convectors)

Quantifiable outcome

• 90% lower carbon footprint compared to conventional materials (steel, concrete)
• +4 more outcomes

Named customers2 records

Segments6 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core, major and minor.

• CapenergiescoreStrategic or Co-development Partner · 22 January 2024Competitiveness cluster serving low-carbon energy sectors. TechnoCarbon joined after assessment by accreditation committee to receive support for industrializing structures for solar energy production facilities. Network includes 530 key players in Energy Transition.
• Paris&ComajorStrategic or Co-development Partner · 15 June 2023Operates the Quartiers Métropolitains d'Innovation program. TechnoCarbon won the 2023-2024 edition for solar shade project deployment in Greater Paris Metropolis municipalities.
• Métropole du Grand ParismajorStrategic or Co-development Partner · 15 June 2023Metropolitan government partnership through Quartiers Métropolitains d'Innovation program. TechnoCarbon installing low-carbon solar shade project in one of four participating municipalities (Aulnay-sous-Bois, Meudon, Noisy-le-Grand, Sceaux).
• Groupe BouyguesminorStrategic or Co-development Partner · 15 June 2023Presentation at VivaTech 2024 on Groupe Bouygues stand to discuss Team for the Planet and entrepreneurship for climate.
• CSTB (Centre Scientifique et Technique du Bâtiment)majorImplementation/ SI/ Consulting PartnerScientific and technical center for building. Partner charged with testing and validating TechnoCarbon's technology for product certification.
• CeremamajorImplementation/ SI/ Consulting PartnerFrench public institute working on transportation, infrastructure, and urban planning. Partner for technology validation and certification.
• Provence PromotionminorGTM or Marketing PartnerRegional development agency supporting TechnoCarbon's establishment in Provence region, helping with premises search and factory location.
• Ze-BoxminorStrategic or Co-development PartnerStart-up accelerator/incubator in France supporting TechnoCarbon's development.
• Cleantech OpenminorStrategic or Co-development PartnerGlobal network of accelerators for clean technology startups. TechnoCarbon supported by CTO France.

Scale indicators9 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• CarbonCure Technologies: Canadian cleantech that injects captured CO2 into concrete during mixing to reduce the cement carbon footprint. Closest direct peer in the low-carbon construction materials category, with comparable regulatory-tailwind-driven thesis and B2B sales motion.
• Solidia Technologies: Developer of CO2-cured concrete and building-material products using a similar mineralization chemistry to Pierre-Carbone. Directly comparable technology approach and end-market focus on low-carbon construction.
• Carbon Upcycling Technologies: Canadian startup utilizing CO2 to produce concrete additives and supplementary cementitious materials. Directly comparable carbon-to-value thesis serving the same building-materials end market.
• Carbon Revolution: Manufacturer of carbon fiber composite components (primarily wheels) for automotive and industrial applications. Directly comparable as a carbon fiber composite producer targeting industrial sectors with performance-driven value proposition.
• Carbitex: Producer of carbon fiber composite materials and fabrics for industrial and consumer applications. Comparable composite-materials manufacturer with similar lightweight/durability performance claims.
• Mersen: French-listed industrial manufacturer of carbon and graphite products for high-temperature, electrical, and corrosive-environment applications. Comparable in producing engineered carbon-based industrial materials for demanding end uses.

Emerging players

• Carbios: French biotech company developing enzymatic recycling of PET plastics and bio-based polymers. Comparable as a French sustainable-materials innovator with similar cleantech positioning and Bpifrance/ADEME ecosystem ties.

Broad incumbents

• Holcim: Global leader in building materials with a major low-carbon product push (e.g., ECOPact concrete, evoZero carbon-cured cement). Incumbent moving into the same low-carbon construction wedge as Pierre-Carbone with vastly greater distribution and capital.
• Sika AG: Swiss construction chemicals major offering low-carbon concrete admixtures and material systems. Incumbent with overlapping capability in sustainable construction materials and global enterprise sales channels.
• Heidelberg Materials: Major European cement and concrete producer with a significant low-carbon product portfolio (e.g., evoZero). Incumbent competitor for the same carbon-reduced structural materials market segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights6 records

Customer concentration

• Xx.com/technocarbon
• LinkedInlinkedin.com/company/technocarbon

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds7 records

Investors6 records

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 TechnoCarbon