This paper compares public-private partnerships (PPPs) in education in post-war Singapore and Hong Kong. After the Second World War the Singapore government shied away from PPPs, while the state in Hong Kong collaborated extensively with the non-state sector in education. Singapore was a small city-state flanked by two Muslim nations, and its post-war regime faced challenges from the Malayan Communist Party. These pressures curbed the state's involvement with missionary and Chinese bodies in education. Hong Kong, however, was a mono-racial society without any anti-Chinese neighbours, and its authorities were seldom challenged by a militant antagonist. Thus, its government was freer to involve non-state agents in education. This study reveals that PPPs are viable only when suitable non-state partners exist and when the state does not believe that such undertakings would expose the school system to an antagonist. It also urges scholars in future to explore the socio-political preconditions for PPPs.