This article analyzes the legal character and content of shareholders’ (stockholders’) agreements in capital companies that have their origins in the tradition of common law. The article presents the possibilities of adopting Anglo-Saxon concepts into the
Polish legal system. The aforementioned agreements regulate the principles of establishing and operating capital companies. The main purpose of these agreements is to normalize the relations between capital companies’ shareholders (stockholders). The parties to such agreements may also be the companies to which the agreements relate. The article presents the differences between the content included in the agreements (statutes) of capital companies and in the shareholders’ (stockholders’) agreements. Concluding agreements is possible based on the freedom of contracts pursuant to Art. 3531 of the Civil Code, which, however, applies with restrictions in capital companies. Theoretical analyzes are supplemented by the presentation of practical problems.