Loading organizations...
Based in London, the United Kingdom, Arda Biomaterials is a materials science startup that transforms spent grain waste from the brewing industry into sustainable, plastic-free leather alternatives. The company develops its flagship product, New Grain, by converting agricultural byproducts into versatile polymers for the fashion, automotive, and consumer goods sectors. The enterprise operates with a team of seven full-time employees and is currently constructing a new production facility that is five times the size of its original laboratory. Arda Biomaterials has raised $5.25 million in total funding from venture capital backers including Clean Growth Fund, Trellis Road, and Plug and Play. The startup also supplies its animal-free materials to commercial partners such as the fashion accessories brand BEEN London for consumer product integration. Arda Biomaterials was founded in 2022 by Brett Cotten and Edward TJ Mitchell.
Arda Biomaterials has raised $6.3M across 2 funding rounds.
Arda Biomaterials has raised $6.3M in total across 2 funding rounds.
Arda Biomaterials has raised $6.3M across 2 funding rounds. Most recently, it raised $5.3M Other Equity in May 2025.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| May 11, 2025 | $5.3M Venture Round | Philip Stark | Susannah Mcclintock, Green Angel Syndicate, Remy Kesrouani | Announced |
| Jun 1, 2023 | $1M Seed | Susannah Mcclintock | Curiosity VC, Plug & Play Ventures, Satgana, Serpentine Ventures | Announced |
# Arda Biomaterials: A Biomaterials Technology Company
Arda Biomaterials is a materials science company that develops sustainable, plant-based alternatives to leather and other animal-derived or petroleum-based materials.[1][2] Founded in 2022 and based in London, the company transforms waste feedstocks—primarily spent grain from breweries and distilleries—into high-performance biomaterials through proprietary supramolecular chemistry.[1][3] Its flagship product, New Grain™, is a leather-like material that is 100% plastic-free, biodegradable, and reportedly has just 2% of the carbon footprint of conventional leather.[4]
The company addresses a dual problem: the environmental devastation of traditional leather production (which contributes over 14% of global carbon emissions) and the waste streams of the brewing industry.[4] By positioning itself at the intersection of circular economy principles and sustainable fashion, Arda targets a rapidly expanding market—the sustainable leather alternatives sector is valued at $73.3 billion in 2023 and projected to exceed $130 billion by 2030.[4]
Arda was founded by Brett Cotten (CEO) and Dr. Edward "TJ" Mitchell (CTO), who met at a startup accelerator event hosted by Entrepreneur First near London Bridge.[2] The two began experimenting in Mitchell's kitchen, transforming waste from local Bermondsey breweries into early prototypes.[2] This grassroots beginning—literally kitchen-based chemistry—reflects the founders' commitment to solving a tangible local problem before scaling globally.
The company has since progressed from prototype to commercialization, filing intellectual property, raising venture capital, building a laboratory, and expanding its team.[2] Early traction includes collaboration with luxury fashion brand BEEN London on a showpiece bag and partnerships with Beavertown Brewery (Heineken-owned) and other craft brewers.[4] These partnerships validate both the technical feasibility and market demand for the material.
Arda operates within the convergence of three powerful trends: the circular economy movement, the sustainable materials revolution, and the shift toward alternative proteins and biomimicry. The timing is critical—regulatory pressure on traditional leather production, consumer demand for transparency in supply chains, and the maturation of biotech tools for protein engineering have all aligned to make companies like Arda viable at scale.
The company also sits at the intersection of two industries: fashion and biotechnology. While fashion has historically been slow to adopt new materials, the sustainable leather market's projected growth to $130 billion by 2030 signals genuine industry transformation rather than niche positioning.[4] Arda's approach—leveraging existing industrial waste streams rather than requiring entirely new agricultural systems—makes it more economically defensible than some competing alternatives.
Beyond its direct market impact, Arda influences how the broader startup ecosystem thinks about sustainability: by demonstrating that circular economy solutions can achieve price parity and performance metrics comparable to incumbent materials, the company raises the bar for what "sustainable" means in practice.
Arda is well-positioned to capture significant market share in the sustainable leather alternatives space, particularly as luxury brands face mounting pressure to decarbonize their supply chains. The company's next phase will likely involve scaling production capacity, expanding beyond fashion into automotive and home goods (already identified as target sectors), and potentially developing additional material applications from the same protein-extraction platform.[1][2]
The critical inflection point will be achieving true price parity with conventional leather while maintaining production volumes that justify capital investment in manufacturing infrastructure. Success here would validate the broader thesis that waste-derived biomaterials can compete on economics, not just environmental credentials—a shift that could reshape how industries approach material sourcing globally.
Arda Biomaterials has raised $6.3M in total across 2 funding rounds.
Arda Biomaterials's investors include Philip Stark, Susannah McClintock, Green Angel Syndicate, Remy Kesrouani, Curiosity VC, Plug & Play Ventures, Satgana, Serpentine Ventures.