Amanda Horton-Mastin

Amanda Horton-Mastin is a seasoned professional known for her advocacy of using creativity to bring about change.

With a track record of forging partnerships with renowned companies like Sainsbury's, BT, Walgreens, and Mars, she has been driving fundraising, support, and awareness for critical social issues.

Amanda excels in leading teams through complex projects, overseeing the process from strategic planning to successful execution.

Currently serving as the CEO at Semble, Amanda is dedicated to catalyzing grassroots change by collaborating with companies to activate their purpose and engage with communities.

At Semble, she spearheads remarkable campaigns centered on social action and environmental causes, such as Backyard Nature and Outdoor Classroom Day, as well as custom grant-making initiatives that assist companies in backing diverse community groups and bolstering the societal fabric.

Amanda's academic background includes A levels in Maths, Physics, and Chemistry from the North London Collegiate School, followed by a BSc and a PhD in Chemistry from the University of Nottingham.

Prior to her current role at Semble, Amanda held key positions at various organizations, including Director at Arcadian Wines Ltd, Senior Director Partnerships, Marketing, and Communication at Girl Effect, and a range of roles at Comic Relief, such as Director of International Campaign Development, Interim Grants Director, and Innovation Director, among others.