Ari Stiegler is the Managing Partner and founder of Flux Capital, a Los Angeles-based venture fund. See sector focus and contact routes.
Ari Stiegler is the Managing Partner and founder of Flux Capital, a Los Angeles-based venture fund, and a three-time founder who previously served as CEO of Prism and TutorMe, the latter acquired by Zovio in 2019. His investment thesis targets Pre-Seed to Series A companies in sectors including space, defense, robotics, artificial intelligence, and fintech. Flux Capital typically invests check sizes between $250,000 and $5 million, though specific lead or follow behavior is not explicitly detailed in available sources. Notable portfolio companies include TutorMe, which he founded and exited, and startups in robotics and emerging technologies that Flux has backed to help them scale. Stiegler emphasizes investing in companies he would personally use and focuses on data-driven due diligence and operational guidance for startups. While he has been recognized as a thought leader and his firm won “Breakout Fund of the Year” in 2025, there is no publicly available distinctive written piece or unique point of view attributed directly to him beyond these general investment principles.
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