This document provides an overview of different kinds of organisations and how they perform work. It discusses micro businesses, small organisations, medium-sized organisations, and large organisations. It also explores different types of organisations, such as sole traders, partnerships, limited liability partnerships, public limited liability businesses, and cooperatives. Additionally, the document examines the impact of organisational structure and external factors on company profitability, including a PESTLE analysis. Overall, it offers valuable insights into business practices and strategies.