Welcome to the InvestCEC Marketplace, a central hub for circular economy start-ups and businesses. Explore our platform to discover and connect with initiatives driving sustainable change in cities and regions across Europe. If you’re leading a venture that aligns with our mission to foster circular economy projects, we invite you to reach out to us via the contact form to showcase your solution and join our collaborative efforts towards a more sustainable future.
Circuland
Circuland is an AI-powered Materials Passports Platform, that allows the production and life-cycle management of Materials Passports for products, buildings and cities. The company aims to contribute to the circular economy by enabling material re-use in the Architecture, Engineering & Construction industries.
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RE.TE
RE.TE focuses on improving the circular economy by collecting and properly sorting and recycling hazardous waste. The service is currently operating in Venice, where many people do not have easy access to recycling centres. RE.TE fills this gap by providing a collection service for schools, hotels, retailers and the local community.
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Ecobarge
ECOBARGE is a Swedish innovation company delivering mobile technology solutions that reduce, optimize and convert waste into energy and high added value materials. It converts Municipal Solid Waste and Biomass waste into valuable products through pyrolysis treatment. Ecobarge has a circular model that helps reduce waste going to landfills or incineration, instead converting it into new products.
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KLIMIS
KLIMIS has developed a method to produce barbecue briquettes from olive pits. The company has a long heritage of using olive pits as fuel for heating limestone to produce quicklime for construction and agriculture purposes. The new process, invented in 1992, re-uses and up-cycling the combusted olive pits to create odourless and smokeless barbecue briquettes.
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Nexus by Sweden
Nexus by Sweden offers a bespoke and compact nature-based wastewater treatment solution for on-site, decentralized, water treatment and recovery. The solution employs natural treatment methods that replicate the process occurring in wetlands without the need for chemical interventions.Nexus by Sweden’s treatment system promotes water reuse (either on- or off-site) and reduces sludge production.
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Scrimber CSC Schweiz AG
Scrimber CSC is developing a technology to process low-grade and underutilised wood assortments into a high-performance, structurally load-bearing building material: Scrimber. The Scrimber technology enables more of the tree to be used (90% rather than 30%) and is designed to be re-used at the end of life. In the future it is hoped that waste wood can be used as input material.
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Concular
Concular provides a digital ecosystem for circular construction, combining software, consulting, and material brokerage to make circular building measurable and scalable. Through tools like CircularLCA, building resource passports, and a marketplace for reused materials, Concular helps clients plan, document, and implement low-carbon, circular projects. Anchored in the technical cycle of the circular economy, the company enables material reuse and refurbishment, reducing waste and driving sustainable value creation in the built environment.
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Ekotekt Ab
Ekotekt is transforming the construction industry with HempCon 3D, a patented carbon-negative building system that combines robotic 3D printing with bio-based hempcrete. The company designs, manufactures, and sells prefabricated panels for walls, roofs, and floors, generating revenue through product sales, pilot projects, and future technology licensing. Through digital fabrication, local production, and circular design, the company delivers sustainable, cost-effective, and scalable construction solutions that reduce waste, enable reuse, and regenerate natural resources for a smarter, more sustainable built environment.
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Istya
Istya is an AI-driven Energy Intelligence Platform that optimizes how buildings manage energy and environmental performance. Founded in 2021, the company combines certified sensors, artificial intelligence, and SaaS tools to help organisations measure, anticipate, and enhance energy efficiency, while ensuring healthier and more comfortable indoor environments. Guided by its core values of sustainability, innovation, inclusion, and boldness, Istya aims to make energy smarter, more sustainable, and better for the people who experience it.
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Terra Green
Terra Green is a sustainable substrates company developing peat-free planting solutions made from organic residues. By transforming brewer’s grains from food production into high-performance, climate-neutral soils, Terra Green aims to stop peat extraction, preserve peatlands, and shape the future of horticulture with regional, low-carbon alternatives.
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CLIC RECYCLE
CLIC RECYCLE operates within the biological cycle of the circular economy, transforming human hair — a renewable, nutrient-rich material — into patented, LCA-verified biomaterials that replace plastics and regenerate ecosystems. Through local collection, cascading upcycling, and regenerative applications in agriculture, marine protection, and sustainable design, the company keeps biological resources in circulation, eliminates waste, and restores natural systems.
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Wastics
Wastics is a digital platform transforming waste management through data, transparency, and sustainability. With its software-as-a-service solution, the company helps organisations manage waste flows, identify recycling opportunities, and digitize processes efficiently. By connecting technology with circular economy principles, Wastics drives the transition toward smarter, greener, and more sustainable waste management.
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Protovation
Protovation is a development partner for SMEs that brings innovative prototypes to life across technical chemistry, power engineering and mechatronics. The company guides clients from idea to market by combining idea generation, concept development, prototype build-out and commercialization. With a flexible, success-based model and deep expertise in engineering and R&D, Protovation helps clients optimise existing technologies, create high-performance systems and launch market-ready products.
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MyPilz GmbH
MyPilz is a biotechnology company developing fungal-based innovations for agriculture, environmental restoration, and sustainable materials. By isolating and applying local fungal strains, the company creates regenerative solutions that upcycle organic waste, restore soils, and enhance ecosystem resilience. Combining advanced mycological research with circular design, MyPilz brings the natural intelligence of fungi into scalable, real-world applications.
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