Sesame Summit 2026 – application open

Beyond Steel and Concrete: Catching Up with TechnoCarbon

The majority of tall buildings are built with steel and concrete, but they no longer have to — and Pierre-Carbone is part of this shift.

This award-winning innovation from European startup TechnoCarbon uses composite technology to turn stone into an alternative to less sustainable and durable construction materials. Since winning the JEC Composites Startup Booster in 2024, TechnoCarbon has hit major milestones, including a seed round that helped fund its first experimental innovation and manufacturing center.

But scaling disruptive materials isn’t just about the breakthroughs — it’s about building credibility with industrial players, and turning recognition into partnerships. We caught up with founder and CEO Stephan Savarese for a candid discussion about challenges of bringing a disruptive product to market, the wins and surprises along the way, and what’s next for this startup born to create a new path towards sustainable architecture, industry and cities.

How would you briefly describe what your technology does?

TechnoCarbon’s innovation, Pierre-Carbone, uses composite technology to turn stone into the first sustainable material to outperform steel and concrete for heavy-duty applications. This is a gamechanger for architecture and industry, because the current paradigm is that it’s impossible to build efficient and tall buildings and structures without steel and concrete. However, these materials have issues that cannot be easily fixed: carbon and freshwater footprint, corrosion, and fatigue.

Can you share a concrete example of how it can be used?

Our first products are solar power plant structures. We’ve already built 2 demonstrators: wayside solar power plants and solar PV carports, where aluminum and steel have been replaced with Pierre-Carbone, thereby saving 50 tCO2 per 100 sqm. That’s 80 Paris-New York flights!

How did winning the JEC Startup Booster change your business?

In an instant, getting recognition from the industry changed our status from just another tech startup without a clear future into an award-winning startup deserving attention from major industrial groups.

We had already received support from Airbus for one demonstrator, but that was not enough to circumvent skepticism about the versatility and market-fit of the technology. It does take some official recognition from several industrial players to alleviate unavoidable defiance towards disrupting innovation!

What are the most significant milestones you’ve hit since winning? Any surprises?

July 2024: closed our seed round, enabling investment into our experimental innovation and manufacturing center.

July 2025: the center reached 100% autonomous production meeting performance standards required for product launch.

October 2025: installed our first solar carport demonstrator, soon to be commissioned.

Any surprises? Yes, winning the JEC Startup Booster Award in 2024 (France team) and JEC Innovation Award in 2025 (Germany team) were great surprises! Being selected for VDS 2025’s TOP50 European startups was also an amazing surprise, as well as the EA ecoentreprises Innov’éa 2025 award.

Next big surprises to come: who will become our next investors and customers?

What’s your top priority for 2026?

Increase sales and reach breakeven of this first manufacturing center, which is still experimental, so suitable for innovation and demonstrators, but less than optimal for production, even in small series.

This entails securing our next purchase orders — sales cycles are long, so we know which ones these will be, but we do not know when and in which order: making it happen is a time-consuming task! We will also be switching to repetitive sales; procuring and installing new equipment to increase production efficiency; and finally, hiring more operators and production engineers to switch to morning and evening production schedules.

Hence, the experimental innovation and manufacturing center will become an innovation, training, and industrialization factory.

What’s the one thing you wish you’d known about the composites industry before starting?

Thanks to JEC World, I believe we had the general information we needed since 2019. Finding the right partners and suppliers took quite some time, though. We finally found them at JEC World 2024, thanks to a combination of multiple factors, so one could think it had to be this way and we were not ready to find them before!

Note: This article is part of a commercial collaboration between JEC and Sesamers. Our team retained full editorial control over the questions and final content.

you might also like

Fundraising 3 hours ago

European HR technology continues its momentum as artificial intelligence transforms talent acquisition processes across the continent. The latest validation comes from Grasp, which has secured €6.4M in Series A funding led by Octopus Ventures to accelerate its international expansion. This funding round underscores growing investor confidence in AI-powered recruitment solutions that address Europe’s persistent talent shortage challenges. The London-based startup’s ability to attract Octopus Ventures—known for backing successful European B2B software companies like Zoopla and Secret Escapes—signals the maturation of AI recruitment technology. Octopus Ventures’ decision to lead reflects their thesis that traditional recruitment methods are fundamentally broken, particularly in Europe’s fragmented labour markets where regulatory complexity and cultural nuances demand sophisticated solutions. AI recruitment Series A reflects market demand Octopus Ventures’ investment strategy focuses on B2B software companies that can scale across European borders—a particularly relevant criterion for Grasp’s ambitions. “We’re seeing unprecedented demand for intelligent recruitment solutions that can navigate Europe’s diverse talent landscape,” noted an Octopus partner familiar with the deal. The firm’s previous investments in HR tech, including Culture Amp and Workable, demonstrate their commitment to transforming how European companies attract and retain talent. Beyond capital, Octopus brings operational expertise crucial for European expansion. Their portfolio includes companies that have successfully navigated GDPR compliance, cross-border employment regulations, and the cultural sensitivities required for international growth. This strategic value extends far beyond the €6.4M cheque, providing Grasp with a roadmap for scaling across multiple European jurisdictions. The timing aligns with broader European regulatory trends favouring transparency in recruitment processes. Recent EU initiatives promoting algorithmic accountability create tailwinds for AI recruitment platforms that prioritise explainable decision-making—a key differentiator for European companies competing against US-based alternatives. European talent acquisition technology gains traction Grasp’s AI-powered platform addresses specific pain points in European recruitment: language barriers, varying qualification frameworks, and diverse cultural expectations across markets. Unlike Silicon Valley recruitment tools designed primarily for tech roles, Grasp’s solution adapts to Europe’s broader industrial base, from manufacturing in Germany to financial services in London. The Series A funding will primarily support Grasp’s expansion across core European markets, with particular focus on DACH region and Nordic countries where talent shortages are most acute. “European companies need recruitment technology that understands local nuances while maintaining the efficiency of AI-driven processes,” explained Grasp’s CEO in discussing the platform’s competitive positioning. Market validation comes from Grasp’s existing client base, which includes mid-market European companies struggling with traditional recruitment agencies’ limitations. The platform’s ability to reduce time-to-hire while improving candidate quality resonates particularly well with European businesses facing regulatory pressure to demonstrate fair hiring practices. This Series A positions Grasp within a growing cohort of European HR tech companies attracting significant investment. As talent scarcity intensifies across Europe, AI-powered recruitment solutions are evolving from nice-to-have tools into essential infrastructure for competitive businesses. Grasp’s European-first approach may prove decisive in a market increasingly wary of one-size-fits-all solutions.

Fundraising 3 hours ago

Europe’s mounting plastic waste crisis has reached a tipping point, with microplastics infiltrating everything from drinking water to food chains across the continent. Against this backdrop, circular economy solutions are attracting unprecedented investor attention, particularly those addressing the technical challenges of plastic recycling at industrial scale. German circular plastics innovator AevoLoop has secured €3.25 million in seed funding to accelerate its breakthrough technology that transforms plastic waste into high-quality recycled materials. The round positions the company to scale operations across European markets whilst addressing one of the continent’s most pressing environmental challenges. The investment reflects growing confidence in European deep tech solutions that combine environmental impact with commercial viability, particularly as EU regulations increasingly favour circular economy approaches over traditional waste management. Circular plastics innovation attracts strategic capital The funding round was led by Circulate Capital, a specialist investor focused on circular economy technologies across Asia and now expanding into European markets. The firm’s decision to back AevoLoop signals recognition of Europe’s leadership position in regulatory-driven sustainability innovation. “AevoLoop’s technology addresses a critical gap in the circular plastics value chain,” explained a Circulate Capital partner. “Their ability to process contaminated plastic waste streams whilst maintaining material quality creates significant value for European manufacturers facing increasing recycled content mandates.” The investor’s thesis aligns with broader European policy frameworks, including the EU’s Single-Use Plastics Directive and forthcoming packaging regulations that require minimum recycled content percentages. This regulatory tailwind creates compelling market dynamics for technologies like AevoLoop’s that can deliver compliance-ready solutions. Circulate Capital’s European expansion through this investment reflects Asia-based investors’ recognition of Europe’s regulatory leadership in driving circular economy adoption. The firm’s portfolio approach focuses on technologies that can scale across fragmented European markets whilst addressing region-specific waste stream challenges. German precision meets European market demand AevoLoop’s proprietary technology leverages advanced sorting and processing techniques developed in Germany’s robust industrial research ecosystem. The company’s approach differentiates through its ability to handle mixed plastic waste streams that typically end up in landfill or incineration facilities across Europe. “We’re solving the economics of plastic circularity,” noted AevoLoop’s founding team. “European manufacturers need reliable supplies of high-quality recycled plastics, but current recycling infrastructure can’t deliver at the quality and scale required. Our technology bridges that gap whilst reducing microplastic generation.” The funding will accelerate deployment across key European markets, starting with Germany’s automotive and packaging sectors where recycled content mandates are driving immediate demand. The company plans to establish processing facilities in multiple European countries, leveraging different waste stream compositions and local partnership opportunities. AevoLoop’s timing capitalises on European corporate sustainability commitments that require tangible circular economy solutions rather than offsetting approaches. Major European brands are increasingly seeking verified recycled materials that meet technical specifications whilst demonstrating genuine environmental impact. This funding milestone positions AevoLoop within Europe’s emerging circular economy champions, demonstrating that deep tech solutions addressing systemic environmental challenges can attract significant capital whilst building commercially sustainable businesses. The company’s success could accelerate similar innovations across Europe’s sustainability tech ecosystem.

Fundraising 4 hours ago

European enterprises are increasingly turning to AI-powered automation solutions to streamline repetitive desktop tasks, with investment flowing into startups addressing workplace productivity challenges. The latest beneficiary of this trend is Desktop Commander, which has secured €1.1 million in pre-seed funding to advance its AI desktop automation platform. The round was led by 42CAP, with participation from several angel investors specialising in enterprise software and artificial intelligence. This funding positions Desktop Commander to accelerate product development and expand its reach across European markets, where demand for intelligent automation tools continues to grow. 42CAP leads AI desktop automation investment 42CAP’s decision to lead this round reflects the venture firm’s thesis around practical AI applications that deliver measurable productivity gains. The Berlin-based investor has been particularly active in the European automation space, recognising the opportunity created by fragmented software ecosystems that require intelligent orchestration. “Desktop Commander addresses a fundamental challenge facing European businesses: the productivity drain caused by repetitive desktop tasks across multiple applications,” explains a 42CAP partner. “Their AI-first approach to desktop automation represents a significant advancement over traditional RPA solutions.” The investment comes at a time when European companies are increasingly seeking alternatives to US-dominated automation platforms, particularly given data sovereignty concerns under GDPR and the EU AI Act. Desktop Commander’s European development and data processing approach positions it well to address these regulatory requirements. Streamlining European workplace productivity Desktop Commander’s platform uses machine learning to understand user workflows and automate repetitive tasks across desktop applications. Unlike traditional screen-scraping tools, the solution integrates directly with software APIs where possible, ensuring more reliable automation that adapts to application updates. The company targets mid-market European businesses struggling with productivity bottlenecks caused by manual data entry, report generation, and cross-platform coordination. Early customers report time savings of 20-30% on routine administrative tasks, with particular success in financial services and professional services sectors. “European businesses operate in a complex software environment with strict compliance requirements,” notes the Desktop Commander CEO. “Our AI automation platform is designed specifically for this reality, offering intelligent task execution while maintaining full audit trails and data protection.” The pre-seed funding will primarily support product development, with particular focus on expanding language support and integrating with popular European business software. Desktop Commander also plans to establish partnerships with systems integrators across Germany, France, and the UK. This funding signals growing investor confidence in European AI automation startups that understand local market nuances and regulatory requirements, positioning Desktop Commander to capture market share as businesses accelerate digital transformation initiatives.

Subscribe to
our Newsletter!

Stay at the forefront with our curated guide to the best upcoming Tech events.