This paper examines the legal forms of business enterprises. The choice of the legal form of a company in which to perform an activity depends on the will of the founders of the company. The work begins with the fundamental signs of the Companies, terms which are essential to get familiar with the company. Special importance is given to division of companies in Croatia, which describes a public company, limited partnership, economic interest association, joint stock company and a limited liability company. It highlights the main features of these companies, their advantages and disadvantages. The paper describes the special legal and organizational forms of business that are used in Croatia, and they are a secret society, partnership, self-employment, cooperatives, institutions and artisan. It is important to become familiar with international operations in the market. Choosing the right legal form of business organization which is allowed in a given country is a key element in the decision-making process for the company, and here are described certain legal forms used in the United States, China, Germany, United Kingdom, France, Italy and Japan.