This type of company is used in circumstances where it intends to seek a listing on the Stock Exchange or where a major Business Expansion Scheme is being formulated; Unlike Private Limited Companies, there is no upper restriction on the number of shareholders, however a minimum or seven are required.

Public Companies are required to issue a prospectus in line with the Companies Act 1963-2007 and to have a minimum issued capital of €38,092.14, of which €9,523.03 (25%) must be paid up. This is paid up when a trading certificate is applied for.