The article "Legal regulation of some types of companies in Great Britain" is devoted to a retrospective research of commercial law in England, as well as an analysis of some modern types of companies in the United Kingdom. The commercial law background in England has a very deep history. Thus, the author pays attention to the development of trade relations in the British Empire, starting with the peculiarities of the British East India Company, a company so powerful that it once dominated almost the entire Indian subcontinent. Particular emphasis is given to the South Sea Company, essentially one of the first and most successful joint-stock companies of its time with its own characteristics. Against the background of the gradual development of that company, there was a need to adopt the Bubbles Act, which for almost a whole century prohibited the creation of new companies, regulating the activities of joint stock companies.
 After analyzing the historical development of commercial law in England, the author analyzed the further development of such relations with the description of modern legislation of Great Britain. Author has payed attention that one of the biggest commercial law acts in the United Kingdom is the Companies Act, 2006, which concentrated the provisions of many previous acts of the XIX-XX centuries, incorporating two main features of company law - a simple registration procedure and limited liability.
 Today the main types of companies in Great Britain are governed by the Companies Act 2006, which primarily distinguishes between limited and unlimited companies. In addition, the law also names private and public companies, as well as other types of companies. A separate legislative act, dated 1890, regulates the concept and features of a partnership, a special form of which is the LLP - a limited liability partnership, which is also regulated by a separate regulatory document.
 England is the country with the sixth largest economy in the world, it is the first in Europe and the second country in the world after the USA - the largest provider of military aid to Ukraine, a rapidly developing country - and, therefore, its experience, retrospective analysis and research of modern legal institutions - are relevant, timely and useful for research and study.