Sol Bier is the founding partner of Factorial Funds, leading the all aspect of the firms growth. Sol has extensive operating experience and a deep appreciation for technical founders.

Sol was previously on the early founding engineering team at Cruise Automation (Y-Combinator W14). Cruise was acquired by GM for $1B in 2016, and scaled from a small 8 person startup to a 3,000 person company. Cruise was last valued at $36B.

Sol holds 7 patents in AI, machine learning and robotics, and holds a B.S in Physics from USC.

Rich Miner is an executive partner at Factorial Funds. Rich has a successful track record as both a startup founder, operator and investor.

Previously, Rich was a founding partner at Google Ventures. Before joining GV, Rich was a co-founder of Android, Inc., origin of the Android mobile operating system and was an executive on the Android team after its acquisition by Google. Rich has a doctorate in computer science from the University of Massachusetts Lowell. The Richard A. Miner School of Computer & Information Sciences at UMass Lowell was named after Miner in 2022.

Durk is an executive advisor at Factorial Funds.

Durk was previously one of the co-founders of OpenAI, and focused on generative AI and scalable machine learning models.

Durk is one of the premier researchers in the AI space, whose contributions include the Variational Autoencoder (VAE), the Adam optimizer, Glow, and Variational Diffusion Models, some of the most widely cited AI papers in circulation. Durk obtained a PhD (cum laude) from University of Amsterdam in 2017.