After articles, Warren joined the accounting practice, Joubert Lambert and Castleden, as a partner.
After merging the practice, Warren co-founded Setter, which consulted to Transnet on the establishment of South Africa’s second Telco, Neotel. Subsequent to Setter, he founded multiple companies in the technology and innovation space, including Luminous, Matchi, and Switch Innovation. In addition to those, Warren co-founded South Africa’s first FASA-accredited social franchise, Sport For All.
Warren is an investor in Classic Bond, and is involved in advising the business on strategy and innovation opportunities.