The Tavistock Institute of Human Relations is a British research and consulting organisation, specialising in how people behave in groups and organisations. Staff use social science methods to address research questions and creative, psychoanalytic and systems approaches to work with organisations and individuals. The Institute is a non-profit (UK charity No.209706) that aims to enable learning and change that will benefit people and the planet. There are sister organisations in China and Germany. It was formally established in September 1947.
https://en.wikipedia.org/wiki/Tavistock_Institute