The Imperial College London spin-out is on a mission to mission to help remove toxic ‘forever chemicals’ from water.
Puraffinity’s precision technologies place it at the forefront of the fight against PFAS, which have been linked to multiple health issues, including cancer.
September 10, 2024
Puraffinity, a start-up developing precision technologies which remove toxic “forever chemicals” perfluoroalkyl and polyfluoroalkyl substances (PFAS) from water, has announced ambitious plans to scale, following the appointment of Vincent Caillaud as its new CEO and securing £6.73 million in new investment from BGF.
Mr Caillaud brings exceptional industry experience, with more than 20 years working in the water sector. He was previously CEO of Veolia Water Technologies & Solutions, a global water technology business unit within the world’s largest water, energy and waste management company, Veolia.
The appointment of Vincent Caillaud as Chief Executive Officer to boost market access for the technology, will allow Puraffinity’s founder Henrik Hagemann to focus on furthering the company’s market-leading technological advantage as Chief Product and Innovation Officer.
BGF’s investment completes Puraffinity’s £16.93 million Series A funding round, following existing funding from Octopus Ventures, HG Ventures, Kindred Capital, and Verve Ventures, as well as materials science sector specialist fund Universal Materials Incubator Co (UMI).
The funding will enable Puraffinity to scale up production of its patented, PFAS-capturing material, “Puratech ®”, to meet exceptionally strong and growing demand across multiple sectors. It will also support the company’s work developing fresh commercial applications that use Puraffinity’s patented materials.
Founded in 2015 by Henrik Hagemann & Gabi Santosa and spun out of Imperial College London, Puraffinity provides a differentiated solution to the world’s ever-growing PFAS problem as its technology consistently and reliably removes PFAS from water, in a much more cost-effective manner compared with conventional treatments.
Puraffinity’s precision technologies place it at the forefront of the fight against PFAS, which have been linked to multiple health issues, including cancer. Developed in the 1940s, PFAS’ molecular make-up makes them resistant to water, grease and oil, meaning they have multiple industrial uses. However, these same qualities make them hard to destroy, hence the name “forever chemicals”, and according to the National Institute of Environmental Health Sciences, they have entered water supplies worldwide, with an estimated 97% of people having PFAS in their bodies.
International regulators are examining bans or limits on the amount of PFAS drinking water can contain in an attempt to tackle the estimated €16 trillion annual cost of environmental remediation and healthcare costs.
Puratech, the breakthrough adsorbent media that Puraffinity has developed, can be applied across use cases as it features a customisable plug-in solution that fits into any existing water treatment system. Puratech can also be tailored to capture specific PFAS compounds, ensuring that global users can meet the regulatory standards of different markets.
The high-performing material also adopts a green chemistry technology which, according to Systemiq 2022, results in 60% less carbon emissions in its manufacturing than existing petroleum-based products.
Henrik Hagemann, founder and Chief Product & Innovation Officer at Puraffinity, said: “Attracting such a respected water industry figure as Vincent, alongside nvestment from BGF underlines not only the progress Puraffinity has already made, but the incredible potential of the business. The new management structure will allow me to focus on accelerating our existing technologies and developing new product roadmaps, confident that Puraffinity’s business development is assured with Vincent as CEO.”
Vincent Caillaud, CEO of Puraffinity, said: “At Puraffinity, we are delighted to join BGF’s growing network of climate tech start-ups as the company continues on its mission of providing PFAS-safe water to the world. With BGF’s expertise in helping start-ups in breakthrough technologies achieve transformational growth, we look forward to meaningfully expanding our commercial capability and extending the global reach of our patented PFAS-removal solutions.”
Luke Rajah, investor at BGF, said: “Puraffinity is well-positioned to fulfil its vision of bringing PFAS-safe water to one billion people by 2030. BGF is thrilled to work with Puraffinity as it enters a new phase of rapid, global growth, taking a meaningful step towards enhancing water safety. BGF has developed a strong reputation for identifying and providing early-stage support for companies creating technologies which not only have huge potential but offer huge societal benefits.”
Puraffinity partners with the U.S. Army ERDC to evaluate Puratech G400, an advanced adsorbent for PFAS removal, through lab and field trials comparing its performance and cost-effectiveness to existing PFAS treatment technologies
The PFAS Treatment Europe 2025 conference is a major industry event focused on advanced solutions for treating PFAS contamination. It brings together utilities, water companies, regulators, and industry experts to share the latest developments, strategies, and innovations for managing PFAS in Europe. Key topics include regulatory updates, remediation technologies, socio-economic impacts, and case studies from across the continent. Our CEO, Vincent Caillaud , will be in attendance.
WEFTEC 2025 is the world’s largest annual water quality conference and exhibition, held September 27–October 1, 2025, at McCormick Place in Chicago. It gathers over 20,000 water professionals from 100+ countries to explore cutting-edge water technologies, attend technical sessions and workshops, and network with sector leaders. The event features a massive exhibition of advanced solutions, educational opportunities, and speciality pavilions focused on topics like sustainability and digital innovation. Our CEO Vincent Caillaud , and CCO, Neal Megonnell , will be in attendance.
In the Building World-Class Teams webinar series, Henrik Hagemann and Jessica Middlesmiss will be discussing how to Create Cultures that Scale
Neal Megonnell brings over three decades of experience in various leadership, technology and sales roles in the carbon industry to his new position at Puraffinity. His extensive background and expertise in the water treatment sector and the specific technologies for removing contaminants make him an invaluable addition to the company's executive team. In his role as CCO, Neal will be responsible for driving Puraffinity's commercial strategy, expanding market presence, and accelerating growth in the rapidly evolving field of PFAS removal technologies. "We are thrilled to welcome Neal to our team," said Vincent Caillaud, CEO of Puraffinity. "His impressive track record in the industry, coupled with his deep understanding of PFAS-related challenges, aligns perfectly with our mission. His background in R&D, with multiple published papers and two patents related to activated carbon, will be instrumental in driving our commercial success and furthering our goal of providing innovative PFAS removal solutions." Neal holds a Bachelor of Science degree in Chemistry from the University of Pittsburgh Master of Science degree in Chemical Engineering from Carnegie Mellon University and a Master’s in Colloids, Polymers and Surfaces. This strong academic foundation, combined with his extensive industry experience, positions him well to lead Puraffinity's commercial efforts in addressing one of the most pressing environmental challenges of our time. Neal's expertise is extensively demonstrated through his strategic involvement in various professional committees, including Chair of the American Water Works Association Standards on Activated Carbon Committee, the ASTM D28 Activated Carbon Committee, and serving as Chairman of the Standards for Activated Carbon. "I am thrilled to join Puraffinity at this exciting time," said Neal Megonnell. "The company's commitment to developing sustainable adsorbent materials for PFAS removal aligns with my passion for innovative water treatment solutions. I look forward to working with the talented team at Puraffinity to expand our market reach and deliver cutting-edge technologies to communities and industries worldwide."