Industrial-Organisational Psychology is a specialised discipline within Psychology that was pioneered in the United States of America in the early 1900s by Psychologists Hugo Münsterberg and Walter Dill Scott. Broadly speaking, organisational psychology is a field of research, study and practice that applies the scientific methods and principles of psychology to organisations. Simply, Organisational Psychology concerns itself with how we perceive and experience organisations and how we think, feel, behave and interact within them. As Positive Psychology Coaching (PPC) is an intervention that elicits improvements in well-being, goal attainment and sustainable performance, it is invaluable to contemporary Organisational Psychology practice. This chapter examines the importance of PPC in supporting the growth, development and sustainable contribution of individuals and the organisations that they create. In addition, it explores this process as it relates to enterprise leadership and culture and their role in nurturing productive and flourishing organisations for the future. It will explore historical approaches and practices and how these have helped and/or hindered individual well-being and performance and propose a series of evidence-based considerations for optimising well-being and performance within a radically transformed social, commercial and industrial landscape following the 2020 global COVID-19 pandemic.