Mark Angus Barnes is a businessperson who founded Purple Group Ltd. and who has been at the head of 5 different companies. Dr. Barnes is on the board of Purple Group Ltd. (former Non-Executive Chairman) and World Wildlife Fund South Africa.

He previously occupied the position of Chief Executive Officer of South African Post Office Ltd., Chairman of South African Futures Exchange, Non-Executive Chairman of GT247 Pty Ltd. and Group Chief Executive Officer of Capital Alliance Holdings Ltd.

He received an undergraduate degree from the University of Cape Town.