Marsbio

MarsBio is a Los Angeles-based venture capital fund that focuses on investing in pre-seed and seed-stage biotech startups. The firm specializes in biosciences and frontier technologies, targeting innovations in healthcare, therapeutics, synthetic biology, and the future of food. With check sizes ranging from $250K to $500K, MarsBio supports startups that push the boundaries of biology, using it as a tool for manufacturing and sustainable solutions. Their portfolio reflects an interest in companies working on immunology, oncology, neuroscience, and bio-enabling technologies, such as research tools and bioelectronics. Co-founded by Rob Rhinehart, best known for creating Soylent, MarsBio aims to back visionary founders with disruptive ideas. The firm emphasizes its support for entrepreneurs tackling complex problems, particularly those related to sustainable food supply chains and novel healthcare solutions. MarsBio’s strategy is to engage deeply with founders at the earliest stages, helping them scale innovative solutions that have the potential to redefine industries. MarsBio primarily invests in U.S.-based companies and leverages its expertise and network to drive transformational progress in biosciences. They’re especially drawn to startups that are pioneering new technologies that could shape the next era of healthcare and sustainable living.