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Executive Summary: Which are the Top 10 New Green Building Materials Companies to Watch?

  1. EnviraBoard (UK): Develops carbon-negative building boards from recycled paper sludge, offering durable, multi-use, and affordable alternatives that reduce landfill waste.
  2. SA-Dynamics (Germany): Produces biodegradable fiber-based insulation materials using solid air technology, eliminating synthetic and animal-derived components.
  3. We Do Bamboo (Kenya): Manufactures bamboo-based boards, beams, and cladding materials sourced locally to replace timber and support reforestation efforts.
  4. Sathi USA (USA): Offers low-carbon slag cement derived from iron-making byproducts that enhance concrete durability and reduce embodied carbon emissions.
  5. Techno-Carbon Technologies UK (UK): Produces carbon-fiber-reinforced concrete that replaces steel rebar, achieving lighter, rust-proof, and stronger construction materials.
  6. Wull Technologies (UK): Creates sheep wool-based insulation panels that provide superior acoustic and thermal performance while ensuring full material circularity.
  7. Restoration Partners (USA): Commercializes bacteria-based self-healing concrete that seals cracks autonomously, reducing maintenance and extending structure lifespan.
  8. Agreka Build (UK): Manufactures circular insulation boards from wheat straw using a self-binding process, offering fire-resistant, recyclable, and carbon-storing materials.
  9. Catavus (USA): Produces hemp-based insulation and fibreboard that provide natural breathability, CO2 storage, and compliance with green building standards.
  10. Rement (Germany): Upcycles demolished concrete into high-quality raw materials using a CO2-negative process that supports circular construction practices.

Global Startup Heat Map highlights New Green Building Materials Companies to Watch

Through the Big Data & Artificial Intelligence (AI)-powered StartUs Insights Discovery Platform, covering over 9M+ startups, 20K+ technology trends, plus 150M+ patents, news articles & market reports, we identified the top green building materials startups.

The Global Startup Heat Map below highlights emerging sustainable building materials companies you should watch in 2026, as well as the geo-distribution of 240+ startups & scaleups we analyzed for this research.

According to our data, we observe high startup activity in the USA and the UK, followed by India. The top 5 Startup Hubs for Green Building Materials are London, Bangalore, Dubai, New York City, and Berlin.

 

 

New Green Building Materials Companies & Startups to Watch [2026]

We hand-picked startups to showcase in this report by filtering for their technology, founding year, location, funding, and other metrics. These emerging green building materials startups work on solutions ranging from low-carbon slag cement and construction materials from farm waste to hemp-based insulation material and carbon-negative building boards.

1. EnviraBoard – Carbon-Negative Building Boards

UK-based startup EnviraBoard develops building boards from recycled paper sludge. It applies a patented process that transforms waste from paper mills into durable, multi-use boards. Its technology reduces landfill waste and provides a sustainable alternative to traditional materials.

EnviraBoard boards are suitable for facade walls, ceilings, partitions, and flooring. The startup highlights a strong price-performance ratio while offering an environmentally outstanding solution. EnviraBoard builds a large production facility in the UK and aims to expand globally. Its products contribute to several UN SDGs 8, 9, 11, and 12.

2. SA-Dynamics – Sustainable Fiber-based Insulation Material

  • Founding Year: 2025
  • Location: Aachen, Germany

German startup SA-Dynamics produces bio-based insulation materials using solid air technology. It develops lightweight, flexible insulation textiles that reduce reliance on synthetic fibers. Its products provide effective thermal performance while being biodegradable and free of microplastics.

The startup also avoids animal-derived materials, offering cruelty-free textile insulation alternatives. Its products target both the construction and apparel industries with sustainable performance. The startup focuses on minimizing environmental footprint while maintaining durability.

3. We Do Bamboo – Bamboo-based Construction Materials

  • Founding Year: 2024
  • Location: Nairobi, Kenya

Kenyan startup We Do Bamboo manufactures bamboo construction materials sourced locally. It processes bamboo poles to produce boards, decking, cladding, and beams with sustainable treatments. Its products offer durability and modern design while reducing reliance on timber.

The startup partners with Kenyan farmers to build resilient supply chains. It supports rural livelihoods and contributes to reforestation efforts. It establishes bamboo as a viable structural and aesthetic alternative in East African construction.

4. Sathi USA – Low-Carbon Slag Cement

  • Founding Year: 2024
  • Location: Houston, Texas, USA

USA-based startup Sathi USA advances low-carbon concrete using Ground Granulated Blast-Furnace Slag cement. It substitutes part of Portland cement with slag to improve performance. Its slag cement is sourced from byproducts of iron-making processes and reduces curing heat and enhances durability.

It increases resistance to sulfates, chlorides, and other chemical threats to concrete’s structural integrity. Sathi USA’s solution is widely applied in large concrete projects requiring strength and longevity. It reduces embodied carbon while extending the lifespan of concrete structures.

5. Techno-Carbon Technologies UK – Carbon-fiber-reinforced Concrete

  • Founding Year: 2024
  • Location: Amersham, UK

UK-based startup Techno-Carbon Technologies UK develops carbon-fiber-reinforced concrete. Its process replaces steel rebar with carbon fiber yarn created through pyrolysis. The yarns form a mesh for pouring concrete.

 

 

The resulting carbon concrete is six times stronger and four times lighter than the regular alternative. It is rust-proof, eliminating problems of rebar corrosion. Structures can be thinner while still carrying heavy loads. This enables flexible, resource-saving construction processes. The startup estimates switching to carbon concrete could cut CO2 emissions in construction by approximately 70%.

 

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6. Wull Technologies – Sheep Wool-based Acoustic & Thermal Insulation Panels

  • Founding Year: 2025
  • Location: Manchester, UK
  • Funding: Secured GBP 300K in Funding in June 2025

UK-based startup Wull Technologies produces bio-philic insulation panels from sheep wool. Its LAMDA product line uses Welsh mountain wool, traditionally used in the textile industry to form rigid insulation panels. Wull Technologies’ products meet standards for thermal conductivity and achieve strong sound absorption.

They also pass both British and European fire safety requirements. The startup’s production process ensures full circularity and replaces synthetic insulation products.

7. Restoration Partners – Self-Healing Concrete

  • Founding Year: 2024
  • Location: Miami, Florida, USA

USA-based startup Restoration Partners commercializes Basilisk Self-Healing Concrete. This technology embeds limestone-producing bacteria and nutrients inside concrete. When cracks form, water and oxygen activate the bacteria.

The bacteria then convert nutrients into calcium carbonate, which seals the cracks. This repair cycle can repeat many times, extending the lifespan of structures. The startup’s approach reduces maintenance needs and costs, and improves long-term durability. It applies biotechnology developed at Delft University of Technology.

8. Agreka Build – Construction Materials from Farm Waste

  • Founding Year: 2024
  • Location: London, UK
  • Funding: Secured Undisclosed Amount in Innovate UK Smart Grant

UK-based startup Agreka Build manufactures WHEATEX, a circular insulation board made from wheat straw. WHEATEX provides thermal and acoustic insulation with enhanced fire and mould resistance. It eliminates synthetic binders through patent-pending self-binding technology.

The startup produces the boards locally in Cheshire, reducing emissions and supporting the regional economy. WHEATEX is fully recyclable and acts as a carbon sink. Agreka Build offers multiple thickness and density options for flexible use.

Its high acoustic transmission loss makes it effective for soundproofing. The startup aims to support net-zero buildings with a safer and healthier insulation product.

9. Catavus – Hemp-based Insulation Material

  • Founding Year: 2024
  • Location: Chicago, Illinois, USA

USA-based startup Catavus develops hemp-based construction materials. Its products include hempcrete, insulation batts, and fibreboard. Hemp fibre offers thermal and acoustic insulation and maintains natural breathability.

It prevents condensation and reduces mould growth indoors. Hemp insulation also features natural fire-resistant and pest-resistant qualities. Hempcrete stores CO2 absorbed during cultivation, lowering the carbon footprint of buildings.

The startup highlights regulatory and financial benefits, including compliance with green standards and eligibility for tax credits. Its materials contain no volatile organic compounds (VOCs) or formaldehyde, improving indoor air quality. Hempcrete is used with structural frames to provide durable insulation and thermal mass.

10. Rement – CO2-negative Concrete Upcycling Process

  • Founding Year: 2024
  • Location: Karlsruhe, Germany
  • Funding: Won a EUR 20K Prize in December 2024 at the NEO2024 Innovation Award of the Karlsruhe Technology Region

German startup Rement develops recycled construction aggregates from demolished concrete. Its process turns waste concrete into high-quality raw materials for new mixes. The materials obtained as a result of upcycling are sand, pozzolanic reactive materials, and precipitated calcium carbonate (PCC), all of which are used in construction.

Rement’s technology supports circular economy practices by reducing landfill waste and the extraction of virgin resources. The startup ensures the strength and reliability of its aggregates through strict quality controls. Its solution contributes to reducing emissions and resource use in construction with no sacrifices to structural integrity.

Discover All Emerging Construction Startups

The green building material startups showcased in this report are only a small sample of all startups we identified through our data-driven startup scouting approach. Download our free Construction Innovation Report for a broad overview of the industry or get in touch for quick & exhaustive research on the latest technologies & emerging solutions that will impact your company in 2026!