This chapter explains how companies limited by shares are formed and looks at the contents of companies’ constitutions. The discussions cover the role of promoters in setting up a company and the meaning of a company ‘off the shelf’. The chapter examines the steps and documentation necessary to register a new company limited by shares and the rules relating to a company’s name. It discusses the constitutional documents of a company and the rules relating to its constitution. The chapter concludes with a discussion of the financing of companies. It examines the different types of shares and the issuing of shares. It also considers debentures and charges.