This paper explores the market-making devices behind Bridge International Academies: a for-profit education company aiming to school millions of nursery and primary aged-students living on less than $2 per day. A wide variety of devices are utilised by Bridge International Academies to construct mass markets for low-cost schooling, including GPS devices that map low-income communities, smartphones that automate administrative functions, and computer devices that perform the duties of a teacher. Moreover, this paper also outlines the network of investors supplying the company with the necessary capital to put market devices into practice and hence, build markets for low-cost schooling.