David Williamson, PhD, is a transformative executive with a proven track record of advancing innovation, sustainability, and operational excellence in biotechnology and materials science. Since joining Modern Meadow in 2015, Williamson has held pivotal leadership roles, including Chief Science and Technology Officer (CSTO), President, and Chief Operating Officer (COO). In October 2024, he was named Chief Executive Officer (CEO), driving the company’s vision to revolutionize the future of sustainable materials. As CSTO, Williamson spearheaded the development and scale-up of breakthrough technologies, notably INNOVERATM, which has set a new standard for high-performance, sustainable materials. Throughout his tenure, Williamson has demonstrated a relentless focus on integrating biotechnology, chemistry, material science, and engineering to deliver commercially impactful innovations. As COO and CEO, he has led Modern Meadow through groundbreaking milestones, streamlining operations, aligning the organization with its core mission, and positioning it to become a leader in the global sustainable materials market. Before joining Modern Meadow, Williamson spent over a decade at DuPont, where he held senior leadership roles in manufacturing technology, process development, and R&D. His achievements included leading corporate research, shaping bioactives strategy, and managing both long- and short-term chemical and biotechnology initiatives. As Chief of Staff for the CSTO at DuPont, Williamson played a critical role in forming the company’s strategic direction. Williamson earned a Ph.D. in Chemistry from Virginia Polytechnic Institute and State University and a B.Sc. in Chemistry from Virginia Commonwealth University. Renowned for his strategic vision, innovative mindset, and results-driven leadership, Williamson continues to drive progress at the intersection of science, technology, and sustainability.

Adriana Marques has held multiple leadership roles in prominent financial services organizations over the last 25 years, leading commercial teams as well as international strategic initiatives, conceptualizing and implementing new commercial strategies. She has extensive experience in driving transformation and change, which is at the core of her current role at Visa Europe. Marques is a natural problem solver and loves to tackle a good challenge. In addition to her extensive career in the payments industry, she has been a Social Impact investor since 2013 with a portfolio of start-ups in Brazil, where she is originally from. She is the global co-chair for Visa Women’s Network and incredibly passionate about female talent development.

MARTAN is a fast growing, Amsterdam based fashion brand aiming to prove that more sustainable fashion can be actually exciting. Worn across Europe's red carpets, showing at Amsterdam, Copenhagen, and Paris Fashion Week, and rooted in a hyper loyal community in the Netherlands. It is reported that approximately 27 million kilos of hotel linen is discarded each year in Europe alone. MARTAN saves this material from luxury hotels and transforms it into high-end design. Each piece is designed in their Amsterdam studio and produced in fair wage EU ateliers. A business model that is reportedly cutting CO₂ emissions by up to 82% and water use by up to 98% compared to brands using virgin or even organic cotton. In just three years, MARTAN has already diverted nearly eight tons of textile waste and counting.

Kirsty Keoghan is eBay’s GM of European Fashion, leading the business across the UK, Germany, France and Italy. Since joining in 2011, she has driven major initiatives including free fashion selling, the Love Island pre-loved partnership and the UK launch of Authenticity Guarantee. Recognised in Retail Week’s Future Leaders and The Tech List, Keoghan is passionate about authentic, circular fashion. A long-time eBay seller and mother of two, she champions sustainable style.

Alice Roberta Jeffcoat is Chief of Staff at Global Fashion Agenda (GFA) which is a non-profit organisation that mobilises, educates and inspires the industry to improve its sustainability performance. In her role she works closely with the leadership team on strategic project delivery and stakeholder management. She also leads communications for GFA - working to raise awareness about the organisation’s initiatives and communicate its vision of a net positive fashion industry. Jeffcoat has a combination of in-house and agency communications experience related to fashion, sustainability, media and retail. She first joined GFA in 2019. Prior to this, she managed the publicity for Hearst UK in London for established media brands including ELLE UK and Harper’s Bazaar. She also managed the PR for multiple retail and hospitality clients at Stripe Communications and led the PR for the renowned fundraising campaign Run For Heroes. She holds an MA (Hons) in History from The University of Edinburgh, Scotland.