Allan is a distinguished business advisor and certified trainer specialising in information and technology governance, assurance, risk management, security, and data protection. He is a frequent speaker at international conferences and regularly leads courses and workshops. A Chartered Accountant by training, Allan began his career at Deloitte in Cape Town and has accrued over 45 years of experience with leading organisations including GSK, AXA, Morgan Stanley, JPMorgan, Goldman Sachs, KPMG, PwC, Marks and Spencer, and the London Stock Exchange.

In his volunteer capacity, Allan currently serves as a co-opted member of the Audit and Risk Committee at a prominent London university. His past roles include ISACA International Vice President and member of the International Board of Directors from 2011 to 2014, Chair of the Credentialing and Career Management Board, and member of the Strategic Advisory Council during the same period. Allan has also held leadership positions in several ISACA committees, such as the CISM Certification Committee, the Credentialing Board and Leadership Development Committee, the CGEIT and CDPSE Certification Committees, and the Audit and Risk Committee, where he served from 2014 to 2018 and chaired in 2014-2015. Furthermore, he is a former president of the ISACA London Chapter (2004-2006) and served for almost 10 years on the British Computer Society's Information Risk Management and Audit Special Interest Group.

Allan’s exemplary contributions to the field have earned him numerous accolades, including the ISACA Chair’s Award in 2014, the Eugene M. Frank Award for Meritorious Performance in 2019, and recognition as one of ISACA’s “Top-Rated Speakers” in 2018 and 2019. In 2023, he was honoured with induction into ISACA’s Hall of Fame.