This document provides an overview of incubators, accelerators, co-working spaces, and internal corporate accelerators. It discusses the reasons for establishing these programs, including driving economic growth, innovation within large companies, and empowering communities. The key aspects of each model are outlined, including value propositions, cash flows, equity structures, and methodologies used. Tips are provided for creating successful programs, such as ensuring the right expertise and networks are in place and that the model is adapted to the local context. The overall purpose is to introduce common concepts around these programs to entrepreneurs and businesses.