Justin Ernest, leveraging his extensive network and experience in venture capital, has invested nearly $400 million into prominent AI startups through his firm, Sabertooth VC. Recognizing a gap in access for family offices and smaller institutional investors, he opted for a model using Special Purpose Vehicles (SPVs) instead of launching a traditional venture capital fund, which can take up to 18 months to establish. Over the past year, Sabertooth has successfully backed 10 companies, including notable names like Anthropic, Anduril, and SpaceX. Each investment is treated as a separate fund, allowing investors to buy shares in these vehicles. Ernest's reputation for integrity and technical expertise has attracted significant investment, with family offices trusting him to navigate the complexities of startup funding. His approach has already yielded substantial returns, including a major exit from chipmaker Groq, acquired by Nvidia for $20 billion. As he continues to build on this success, Ernest aims to eventually launch a traditional venture fund, supported by the strong track record established through his SPV investments.