Lee Chambers is a business psychologist and CEO of Male Allies UK. After a diverse career, from corporate finance to building and exiting a tech company, he is now focused on supporting organisations to engage men in inclusion and promote effective allyship. He has been featured on the Startups 100 Index, has received a Great British Entrepreneur Award, and sits on the board of CMI Women and the Manchester Metropolitan University Business School. In 2024, he received the Freedom of the City of London for services to equality in business.

He is a Kavli Fellow of the National Academy of Sciences and a EDI Fellow at the University of East London. He is the 2023 UN Women Changemaker of the Year, and is an ambassador for Refuge, 50:50 Parliament and Working Families. He speaks globally on allyship and masculinities, having taken the stage at One Young World, ChangeNOW and the Bloomberg Global Equality Summit, and is the author of the bestselling book, Momentum: 13 Ways To Unlock Your Potential .