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How Justin Ernest invested nearly $400M into hot startups without a traditional VC fund

Reported by Techcrunch
Jun 9, 2026· 2 min read
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Key Takeaways
  • • Justin Ernest's Sabertooth VC has deployed nearly $400 million across 10 companies over 12 months without establishing a traditional venture capital fund, instead utilizing special purpose vehicles (SPVs) to provide family offices and institutional investors direct access to late-stage startup equity.
  • • The firm has invested in high-profile companies including Anthropic, Anduril, Databricks, PsiQuantum, and SpaceX, with individual check sizes ranging from $10 million to $275 million, securing meaningful equity stakes in official, company-approved funding rounds.
  • • Sabertooth VC structures each investment as a separate SPV, allowing individual investors to purchase shares in the vehicle that owns the underlying stock, addressing a significant gap where family offices and smaller institutional investors lacked access to AI and deep-tech company cap tables.
  • • Ernest leveraged a five-year track record at Playground Global in deep tech investing and established relationships with both founders and institutional capital providers to build credibility in a market segment where reputation is paramount for raising capital from family offices.
Summary
Justin Ernest identified a critical inefficiency in venture capital markets: family offices and smaller institutional investors possessed capital and interest in high-growth AI and deep-tech companies but lacked meaningful access to investment opportunities on those cap tables. Drawing on five years of experience at Playground Global, where he developed expertise in deep tech investments and cultivated relationships across both founder and investor networks, Ernest launched Sabertooth VC to systematically bridge this gap.

Over the past 12 months, Sabertooth VC has deployed nearly $400 million across 10 portfolio companies by eschewing the traditional venture fund model in favor of a deal-by-deal SPV structure. Each investment is treated as a distinct vehicle, with individual SPVs enabling investors to purchase shares in entities that hold equity in target companies. This approach allows Ernest to write checks spanning from $10 million to $275 million while ensuring all investments participate in official, company-sanctioned funding rounds. The portfolio includes marquee names such as Anthropic, Anduril, Databricks, PsiQuantum, and SpaceX.

While Sabertooth VC is not the first firm to offer family offices direct equity access to individual late-stage startups through SPV structures, Ernest rapidly accumulated capital commitments due to his established reputation as a substantive investor rather than merely a capital aggregator. Benjamin Wagner, chief investment officer at a family office managing wealth for 50 individuals, characterized Ernest as differentiated by his authentic investment judgment and technical expertise, qualities he emphasized distinguished Ernest from competitors primarily focused on capital pooling without deeper value-add perspectives.

The SPV-based model allows Ernest to maintain operational flexibility while scaling capital deployment without the time and regulatory overhead associated with formal fund formation, enabling him to capitalize on founder relationships and market timing for high-conviction opportunities in AI and deep-tech sectors.

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Sources

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Techcrunch How Justin Ernest invested nearly $400M into hot startups without a traditional VC fund