Wei Guo – Startup Investor Profile

Wei Guo, Founding Partner of UpHonest Capital, is a renowned angel investor in Silicon Valley, focusing on early-stage cross-sector investments. His fund, Wei Fund, has invested in over 120 startups, including Theta Labs. Geographically, he is active in Silicon Valley and has partnered with various institutions and individual investors. His investments include companies like RoboTerra, MoBagel, and Mashgin, showcasing his expertise in AI. Wei Guo’s professional career is marked by strategic investments, with a strong track record in the industry. The check size for investments made by Wei Fund varies based on the round, and collaboration styles are aligned with a focus on early-stage ventures and impactful partnerships.

Location: San Francisco, CA

Country: China

Investment Regions:

Investment Stages: pre-seed, seed

Website:

AI Reasoning: Signal shows Wei Guo has investments in Sep 2025 (M.AI Unbound, Inc – Seed) and Mar 2025 (Turing – Series E). The most recent known investment is within 6 months of the reference date (Sep 2025 is within one month from the reference). Example invested company: M.AI Unbound, Inc. Therefore classify as very-active.

Low Activity – Only known angel investments more than 12 months ago.

Active – Known angel investments between the last 12 and 6 months.

Very Active – Known angel investments in the last 6 months.