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§ Private Profile · Portland, OR, USA
Cleantech company using engineered enzymes and machine learning to recycle PET plastic waste, enabling a circular economy.
Key people at Birch Biosciences.
Birch Biosciences was founded in 2021 by Johan Kers (Co-founder and CEO).
Birch Biosciences is a Portland, Oregon-based cleantech company that utilizes engineered enzymes and machine learning to recycle PET plastic waste for packaging and textiles. The enterprise targets the $600 billion global plastic resin market by developing advanced enzymatic technologies designed to establish a sustainable circular economy for synthetic materials. The firm has secured financial backing and institutional support from Y Combinator, the National Science Foundation, and the United States Department of Energy through multiple Phase I and Phase II Small Business Innovation Research awards. After achieving a key technical milestone for PETase performance, the organization relocated to a significantly larger facility in November 2024 to prepare for the commercial operation of a pilot-scale plant in 2025. Birch Biosciences was founded in 2021 by Emily Duncan and former Absci executive Johan Kers.
Key people at Birch Biosciences.
Birch Biosciences is a cleantech startup revolutionizing plastic recycling by engineering high-performance enzymes that act as “molecular scissors” to break down plastic polymers into monomer building blocks. These monomers can be repolymerized into high-quality recycled plastics, enabling a true circular plastic economy that reduces reliance on fossil fuels. Their technology primarily targets PET plastics (used in beverage bottles and polyester textiles) and polyurethane plastics (used in foam products). Birch’s enzymatic recycling process operates at low temperatures, improving sustainability and economics compared to traditional mechanical or chemical recycling methods[1][2][4].
For an investment firm perspective, Birch’s mission is to reinvent plastic recycling through advanced enzyme engineering and AI-driven design, focusing on sustainable, scalable solutions that address the global plastic waste crisis. Their investment philosophy centers on leveraging cutting-edge synthetic biology and machine learning to create economically viable, environmentally friendly technologies in the cleantech sector. Birch Biosciences impacts the startup ecosystem by pushing forward innovations in enzyme engineering, green chemistry, and circular economy models, supported by partnerships with government agencies like the US Department of Energy and NSF[1][3][7][8].
As a portfolio company, Birch builds proprietary enzymatic recycling technology that serves plastic manufacturers, brands, and consumers demanding sustainable products. It solves the problem of low-quality, costly recycled plastics and the environmental damage of fossil-fuel-based plastic production. Birch has demonstrated growth momentum through technical milestones, NSF SBIR awards, a move to a larger facility, and plans for pilot and commercial-scale plants by 2025-2027[8].
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Birch Biosciences was founded in Portland, Oregon, by a team of scientists and entrepreneurs with expertise in enzyme engineering, synthetic biology, and AI. The idea emerged from the urgent need to improve plastic recycling rates, which have stagnated at around 9% in the US for 15 years, and the recognition that enzymes could offer a transformative solution by breaking down plastics at the molecular level without the drawbacks of mechanical or chemical recycling[1][2][8].
Early traction included securing a global patent license agreement with the National Renewable Energy Laboratory (NREL) to commercialize their enzymatic deconstruction technology for PET plastics. This partnership validated their approach and accelerated their path toward scalable, low-cost plastic recycling. Birch also received NSF SBIR funding to develop and optimize enzymes for accelerated plastic recycling, marking pivotal moments in their technology development and commercialization roadmap[3][7][9].
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Birch Biosciences is riding the global trend toward sustainability, circular economies, and green chemistry innovation. The timing is critical as plastic pollution worsens and regulatory, consumer, and brand pressures increase for sustainable materials. Market forces favor enzymatic recycling because it addresses the limitations of mechanical recycling (quality loss) and chemical recycling (energy intensity, toxic solvents). Birch’s AI-powered enzyme platform positions it at the forefront of synthetic biology applications in cleantech, influencing the broader ecosystem by demonstrating how biotechnology can solve large-scale environmental challenges and create new industrial paradigms[1][2][3][4][7].
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Birch Biosciences is poised to scale its enzymatic recycling technology from pilot to commercial plants by 2026-2027, potentially disrupting the $600 billion plastic resin market. Future trends shaping its journey include advances in AI-driven enzyme design, increasing regulatory mandates for recycled content, and growing corporate commitments to sustainability. As the company matures, its influence could extend beyond PET plastics to other polymers, further expanding circular economy solutions. Birch’s integration of biotechnology and green chemistry exemplifies the next wave of industrial innovation, offering a scalable path to reduce plastic waste and carbon emissions globally[8].
This trajectory ties back to Birch’s core mission: to enable a sustainable, circular plastic economy by transforming plastic recycling through engineered enzymes and AI, addressing one of the most pressing environmental challenges of our time.
Birch Biosciences was founded in 2021 by Johan Kers (Co-founder and CEO).
