This document defines a company and outlines its key characteristics and types. It begins by defining a company as an artificial person created by law to attain a common social or economic end. It then describes the key characteristics of companies as having separate legal identity, limited liability, perpetual succession, a common seal, transferable shares, and separate property. The document goes on to classify companies as private or public based on membership, and as having limited or unlimited liability based on legal obligations. It also differentiates companies based on ownership and control structure.