The article explores different types of venture structures in the context of activating innovative activities. It defines venture capital, examines its varieties and functioning characteristics, and categorizes business entities based on types of venture capital. The study reveals common and distinct features of venture businesses, especially in relation to market segments of formal and informal venture capital. It also delves into the concept of venture business structures and outlines requirements for their formation. The classification of venture business structures in the context of innovation activation is presented, highlighting their various types and groups. The characteristics of these structures are detailed in a tabular format.