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.

Matthias Plappert is a Partner at Factorial Funds, focused on venture and growth equity investments

Previously served as a Research Scientist and Team Lead at OpenAI and GitHub

He was a key technical team member that released GitHub's AI Copilot feature alongside OpenAI and is one of the authors of the Codex paper, the model behind Github Copilot

Matthias holds a Bachelor’s and Master’s degree in Computer Science from Karlsruhe Institute of Technology, where he graduated with distinction