This guide is aimed at start-ups interested in collaborating with mobile operators in emerging markets. The GSMA Ecosystem Accelerator programme and Match-Maker Ventures teamed up to produce this guide, which walks you through the process of securing a partnership with a mobile operator in your market and answers the questions that will arise along the way. Engaging with a mobile operator and building a partnership is a journey, and we have identified four main stages of this journey: understanding the industry, understanding your market, pitching, and making the collaboration work.