Sarah Xu
Venture Partner at KCY Family Office LLC
New York, New York
Sarah Xu, Venture Partner at KCY Family Office LLC is an active investor based in New York, New York. This profile covers what Sarah Xu backs, at which stage, and how founders can reach out in 2026.
Sarah Xu is a Venture Partner at KCY Family Office LLC, leading investments in AI and Clean Energy Technologies, and a Partner at Silverbear Capital.
- Investor type
- Family OfficeVC
- Stages
- SeedSeries AEarly Stage VentureLate Stage Venture
- Invests in
- Artificial IntelligenceClimate & EnergySpace & AerospaceCrypto & Web3Fintech
- Location
- New York, New York
- Typical check
- $750K
How to reach Sarah Xu
Angels and operators like Sarah Xu reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
Connect with Sarah Xu
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise.
Frequently Asked Questions
What does Sarah Xu invest in?
Sarah Xu invests in Artificial Intelligence, Climate & Energy, Space & Aerospace and Crypto & Web3, typically at Seed, Series A, Early Stage Venture and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sarah Xu invest at?
Sarah Xu typically invests at Seed, Series A, Early Stage Venture and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Sarah Xu's typical check size?
Sarah Xu typically writes checks around $750K. Use it as a signal for whether your raise fits their stage.
How do I contact Sarah Xu?
Unlock Sarah Xu's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.