Partnership contract (societas in Roman legal tradition) is a union of person and assets without legal personality in which two or more persons commit to pool their labor and/or property to accomplish a common goal. It is clear that its development of this contract generally begins with societas, i.e. the partnership contract of ius gentium as a law that served to facilitate the legal transaction of Romans and foreigners in the circumstances of the flourishing trade after the Second Punic War. However, in the context of the origins of societas, a particular contract of societas publicanorum is also often cited or, even further back, an institute called the consortium. A consensual contract formed by the agreement of of its members, which we call socii (partners), it is a bilaterally binding legal transaction based on the principles of bona fides. I was a very widespread contract, elevated to the level of a contract from which a binding obligation arises although it was based only on consensus and no formalities were required. Due to its origin from the ius gentium, it is one of the four informal contracts that brought with them the simplicity and efficiency of legal transactions. Four basic forms of societas (societas omnium bonorum, societas unius rei, societas quaestus and societas alicuius negotiationis) emerged from its development, and are analysed in the text. This contract is still a frequently used civil law contract. On its development path it underwent certain transformations, although contemporary partnership and its fundamental principles have obvious Roman origins. Rootedness of contemporary contract of partnership in Roman law and Roman legal tradition is reflected terminologically and substantially, both in legislation and in case law.