Handpicked from diverse skill sets within the scientific community

Our people collaborate and implement cutting-edge R&D to understand how to tackle the plastic pollution problem facing society today.

The Board

Jonathan Sieff

Founder & Chairman

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Skills and experience

Jonathan has 20+ years experience across retail, manufacturing and the distribution business, with a special focus on multi-consumer brands and intellectual property. Prior to setting up Polymateria, Jonathan founded Fashion lab, a dynamic manufacturing group, which was acquired by a global sourcing and logistics company. He has worked on multiple branding and distribution business, and is also active in many foundations and charities.

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Jonathan Sieff

Founder & Chairman

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Niall Dunne

CEO & Board member

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Skills and experience

Niall joined Polymateria as CEO in January 2018 from British Telecom where he was their CSO. Previously Niall led the creation and growth of sustainability practices at Accenture and Saatch & Saatchi.

The World Economic Forum selected Niall as Young Global Leader in 2012 and he has sat on a number of their Global Agenda Councils.

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Niall Dunne

CEO & Board member

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Lee Davy-Martin

Founder & Board member

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Skills and experience

Lee has over 10 years of experience acting as a partner within a number of London’s top global accountancy firms. During his career, he has advised many technology start-ups and has guided a number of those through successful exits. His experience in the accounting sector and entrepreneurial outlook has led him to making a number of investments in the technology sector, and he has started a number of businesses as the founder.

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Lee Davy-Martin

Founder & Board member

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The team

Andrew Webster

COO

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Skills and experience

Andrew Webster is Polymateria’s Chief operating Officer bringing 25 years of commercial, financial and management experience across multiple industries. Andrew was latterly the Managing Director of the UK licensed apparel arm of Global Brands Group, where he was part of the founding team that built the business from scratch through to trade sale.

Andrew is a keen sportsman, having captained English Universities at cricket and follows most sports mainly through his 2 children now, from the side of the playing fields. Andrew’s wife is the founder of Beyond The Schoolrun, a social enterprise helping mothers re-skill and re-enter the workplace in a way that fits around their parental activities.

Dr Christopher Wallis

VP, Innovations

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Skills and experience

Chris (MRSC, MRSB) leads Polymateria’s Innovations team, made-up of chemists, polymer scientists and analytical experts, in the design, development and testing of biotransforming plastics. He also oversees the company’s extensive network of third-party prototyping and certification laboratories to assure the quality and safety of the company’s technology. In addition, Chris is the industrial supervisor to Polymateria’s University collaborations as well as representing the company’s open-source approach to new biodegradation standards on international committees and national policy panels.

Chris also manages the IP strategy and portfolio of the company, alongside the leadership team, to achieve maximum commercial deployment of our technology per territory.

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Dr Christopher Wallis

VP, Innovations

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Dr Hery Randrianantoandro

VP, Sales & Marketing

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Skills and experience

Hery joined Polymateria in September 2018 bringing over 17 years of leadership experience, knowledge and an extended network across the global plastic value chain and the petrochemical industry. Before joining Polymateria, he led the new business development initiatives at Synthomer plc, developing and establishing the group within a range of adjacent and attractive new markets. He was also actively involved in the development and execution of Synthomer’s sourcing strategy across a range of strategic raw materials.

Previously, Hery led SABIC’s polymer healthcare segment, establishing the group as an emerging global leader in the sector. Before SABIC, he managed INEOS group’s European Polypropylene (PP) business and held a number of management and technical roles at BP Chemicals from demand and supply planning management, to customer technical support and product development.

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Dr Hery Randrianantoandro

VP, Sales & Marketing

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Karam Hirji

Finance Director

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Skills and experience

Karam is a Chartered Accountant and a Mechanical Engineer by training. Karam is our Finance Director, combining his deep experience working in blue chip organisations and in the plastics recycling industry with a personal passion for innovation and technology focused on the environment.

Karam has led growth transformation programmes at BT, delivering margin improvements of over £25m per annum. Karam is also on the Board of Directors of Extrupet Group, Africa’s largest plastics recycler, which recycles over 1 billion PET bottles per annum.

Dr Gavin Hill

Technical Innovations Manager

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Skills and experience

Gavin oversees the development and applications of different testing methodologies and how new techniques can be applied to improve our scientific understanding. In addition, he liaises with the commercial team to support the adaptation of Biotransformation additives. Gavin also oversees the smooth running of the lab, ensuring instrumentation is calibrated, providing training and experience to technicians on new techniques as they are developed. With a background in polymer science, Gavin is also responsible for ensuring that testing and analysis is conducted correctly and to translate the science to the commercial team.

Gavin attended the University of St Andrews in Scotland, where he obtained a BSc (Hons) in Chemistry with Catalysis and then carried out a PhD on Synthesis and Testing of Novel Biodegradable Surfactants; this research was partly industry funded. After finishing his PhD, Gavin moved to the Vrije Universiteit – Brussels, to the Physical Chemistry and Polymer Science group where he worked on several individual and collaborative projects. Gavin was brought in to try and create a polymer synthesis platform for new projects within the department which excelled at many aspects of polymer analysis such as rheology and calorimetry, in return Gavin was able to broaden his understanding of polymer properties and analysis. In 2016, he returned to the UK and has brought his experience and understanding of polymer chemistry and analysis to Polymateria, where he is working on new techniques for studying the degradation of plastics as well as developing a new range of additives that will more effectively lead to a controlled breakdown and biodegradation of traditionally non-biodegradable materials.

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Dr Gavin Hill

Technical Innovations Manager

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Dr Margot Wenzel

Research Innovations Manager

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Skills and experience

Margot is the Research Innovations Manager at Polymateria, supporting and developing the company’s network of internal and external collaborations. She oversees the management of various R&D projects dedicated to the design, development and testing of plastics containing Biotransformation technology. Additionally, she manages the network of external third-party laboratories for the independent certification of Polymateria’s technology. She also handles Polymateria’s portfolio of external funding applications and awards.

Margot obtained her PhD from the Université de Bourgogne in France in 2013 in the field of inorganic biological chemistry, before moving to the UK to become a postdoctoral research associate at University of York, where she studied and developed new catalytic processes for greener production modes of pharmaceutical intermediates. Following this, Margot began a second postdoctoral position at Imperial College London working on gold nanoparticles for medical imaging, followed by a third at Cardiff University working on gold complexes as selective protein inhibitors and anticancer agents.

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Dr Margot Wenzel

Research Innovations Manager

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Celine Moreira

Analytical Chemist

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Skills and experience

Celine is part of the innovations team and her work as an analytical chemist focuses on the physical and chemical testing of biotransforming plastics. She is also responsible for formulating in-house testing reports and coordinating out-of-house analysis with third-party certified laboratories. Celine obtained her degree in biological resources at the Institute of Engineering in Porto, Portugal which provided her the skills to ensure a rational and sustainable management of biological resources, as well as, the development of bioproducts for the food, cosmetic and pharmaceutical industry. She also learned the fundamental knowledge of solving environmental challenges, such as soil and water remediation.In addition, Celine performed a European Project Semester at the School of Engineering in Tarbes, France which focused on the development of a bio-based conductive adhesive.

In 2018, Celine moved to London and enrolled on a part-time Master’s in Environmental Engineering, shortly after she joined Polymateria.

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Celine Moreira

Analytical Chemist

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Chloe Points

Executive Assistant

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Skills and experience

Chloe is passionate about the environment and has grown up around farms in South Devon organising plastic beach clear ups along the South Hams coastline as well as Goa, India.

Chloe played lacrosse and ran cross country for Berkshire and has received bronze, silver and gold Duke of Edinburgh awards.

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Chloe Points

Executive Assistant

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Life at Polymateria