The commenda was a medieval contract which developed in Italy around the 13th century, and was an early form of limited partnership. The commenda was an agreement between an investing partner and a traveling partner to conduct a commercial enterprise, usually overseas. The terms of the partnership varied, and are usually categorized by modern historians as unilateral commenda and bilateral commenda, based on the share of contributions and profits between the partners. The bilateral commenda was known in Venice as collegantia or colleganza. The commenda has been described as a foundational innovation in the history of finance and trade.
The commenda was a partnership between an investing partner (called the commendator, or socius stans) and a traveling partner (called the tractator or socius procertans). The investing partner would provide the capital and the traveling partner would execute a commercial enterprise (generally maritime transport), the initial capital would be returned to the investing partner and the remaining profits would then be split. The commenda was in essence as joint-stock company for the financing of a single expedition. Depending on the contribution of the traveling partner, historians define two types of commenda:
Each individual contract was different, and sometimes the investment was a share in a ship.