Global management consultancy Bain & Co. was barred from competing for U.K. government contracts for three years following its role in a corruption scandal involving South Africa’s national tax offices.

The move follows a probe into allegations of widespread corruption and graft during the nine-year period former South African President Jacob Zuma was in power. Zuma has been accused of placing the interests of corrupt associates ahead of those of his country.

Neil Hodge is a freelance business journalist and photographer based in Nottingham, United Kingdom. He writes on insurance and risk management, corporate governance, internal audit, compliance, and legal...