<p>In the evolving organizational landscape, innovation plays a crucial role in driving economic and social development. Over the past decade, various initiatives, including incubators, accelerators, and corporate venture capital, have played pivotal roles in supporting emerging startups. A recent addition to this support ecosystem is the venture builder, a prominent approach to scale the innovation fuzzy front-end, emphasizing the growth of startups and fostering strategic partnerships for the creation of a portfolio of ventures. However, the lack of literature on these models limits the possibilities to fully understand its academic and practical implications, leading to challenges in their theoretical conceptualization and concrete applications within entrepreneurial ecosystems. Addressing this gap, this work introduces a robust theoretical foundation for venture builders, articulated through a research prime. It differentiates venture builders from traditional startup support mechanisms and proposes a new analytical framework based on five dimensions: activities, selection processes, assessment processes, financing mechanisms and temporal scope program. Therefore, theses dimensions enhance the understanding of venture builders and stimulate further academic and practical inquiry into their impact on economic and social development.</p>