Fundraising Fox

Mark Xu

Investor

Investor at Index Ventures

New York City Metropolitan Area

30 Under 30 2025 · Venture Capital

Experience

  1. Index VenturesPartnercurrent2025 — presentNew York, New York, United States
  2. Flapping AirplanesBoard Observercurrent2026 — present
  3. SimileBoard Observercurrent2025 — present
  4. Fireworks AIInvestorcurrent2025 — present
  5. Parallel Web SystemsInvestorcurrent2025 — present
  6. EnigmaInvestorcurrent2025 — present
  7. 7AIInvestorcurrent2025 — present
  8. Grafana LabsInvestor2023 — 2025
  9. WizInvestor2023 — 2025
  10. Anduril IndustriesInvestor2023 — 2025
  11. GleanInvestor2023 — 2025
  12. StripeInvestor2023 — 2025
  13. VerkadaInvestor2023 — 2025
  14. LightspeedPartner2022 — 2025

Skills & more

Research7Coding Experience2Violin7Golf10OWL19Leadership11

Languages Chinese · English · Spanish

From Mark's professional profile.

Colleagues at Index Ventures

Adrianna Ma
Investor at Index Ventures
Ali Fisher Sweet
Investor at Index Ventures
Ana Andreescu
Investor at Index Ventures
André Dubois
Investor at Index Ventures
Avron Marcus
Investor at Index Ventures
Bastian Hasslinger
Investor at Index Ventures
Ben Sneider
Investor at Index Ventures
Benjy Boateng
Investor at Index Ventures

Frequently asked questions

Who is Mark Xu?
Investor at Index Ventures
Where does Mark Xu work?
Mark Xu is at Index Ventures.
Where did Mark Xu go to school?
Mark Xu studied at Harvard University (Applied Mathematics, Economics); The Juilliard School (Pre-College, Violin); Hopkins School.

Same school

Also attended Harvard University1,564

Alfred LinPartner at Sequoia CapitalChris DixonFounder & Managing Partner of a16z crypto at Andreessen HorowitzSarah TavelVenture Partner at BenchmarkDanny RimerPartner at Index VenturesLaela SturdyManaging Partner at CapitalGBill GatesCo-founder of Microsoft; Chair of the Gates Foundation

+ 1,558 more

Also attended The Juilliard School5

Adolfo BlascoPartner at NazcaDavid WasherInvestor at Adjuvant CapitalJane ShawBusiness Operations Analyst at Blackbird FoundryYuri CataldoCo-Founder, General Partner at Athenian CapitalElizabeth WalderPresident at Walder Ventures

Also attended Hopkins School19

Kevin ColleranManaging Director at Slow VenturesMike DudasInvestor at 6th Man VenturesEmilio Maglione-FulcoHead of Operations at 6th Man VenturesMatt VineSenior Associate at RRE VenturesKeith GiarmanExecutive Coach & Recruiting at Roble VenturesTara BishopInvestor at Black Opal Ventures

+ 13 more

Shared employers

Also worked at Flapping Airplanes2

Dave MunichielloInvestor at GV (Google Ventures)David CahnGeneral Partner and COO of Venture at Sequoia Capital

Also worked at Simile3

Shardul ShahInvestor at Index VenturesAaref HilalyPartner at Bain Capital VenturesJyothi VallurupalliInvestor at Lightbank

Also worked at Parallel Web Systems6

Mamoon HamidPartner at Kleiner PerkinsJosh KopelmanFounder and Partner at First Round CapitalShardul ShahInvestor at Index VenturesClay FisherInvestor at Spark CapitalEric StrombergPartner at TerrainIpshita AgarwalInvestor at CRV (Charles River Ventures)

Also worked at 7AI5

Juriaan DuizendstraalInvestor at Index VenturesShardul ShahInvestor at Index VenturesAsheem ChandnaPartner at Greylock focused on enterprise, cybersecurity, and infrastructure softwareLior DivCo-Founder & CEO at 7AIYonatan Striem AmitExecutive Officer, Director at 7AI