The chairman of app developer Animoca and the related game developer and venture capital company Animoca Brands, established in 2011 and 2018 respectively, entrepreneur and investor Yat Siu has been behind several groundbreaking companies.

Perhaps the best known among them is games, social media, online transaction systems, and web communication software Outblaze, which he set up in 1998. Born in Austria, he started his career at Atari Germany before moving to Hong Kong in 1996, where he set up the innovative free website and email company Cybercity. He then set up Outblaze during the first dotcom explosion, initially as a messaging company known for its robust anti-spam protection (at its peak, it had more than 75 million customers), but he gradually transitioned it into a games company, selling its messaging business to IBM in 2009. With Animoca, he has been behind games including The Sandbox, Crazy Kings and Crazy Defense Heroes.

He is also a director of Dalton Foundation, which operates the progressive, child-centred Dalton School Hong Kong; is a member of the advisory board of Bafta; and a board member of the Asian Youth Orchestra.