One of the top ten information technology firms in the world approached ETC Partners to map securities lending business processes. It wished to use that to improve understanding of its technology resources and in the process showcase its capabilities to its investment banking clients. We conducted a series of interviews with senior technologists from the firm to get a better context. We coupled the findings with our expertise in the field of securities lending to define a set of business processes. The output is a set of web-based navigable process flows with relevant examples and case studies embedded in them.