But policy makers haven’t known as much about the cluster as they need to. Based on fresh qualitative and quantitative research, including in-depth interviews with digital entrepreneurs in the cluster and beyond, A Tale of Tech City maps the development of ‘Silicon Roundabout’ from its emergence in the late 1990s, and provides the most detailed account yet of the firms and jobs that make up the cluster. Counting over 3,200 firms and over 48,000 jobs, the research shows that the cluster is larger than is generally appreciated.