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Felicis Ventures Fund X

United States
Pre Seed
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About Felicis Ventures Fund X

Felicis Ventures Fund X is a venture capital firm based in United States, focusing on Pre-Seed stage investments. The fund actively supports founders building innovative solutions in AI/ML, E-Commerce, SaaS, providing strategic guidance and capital to help startups scale.

Investment Focus

Location / RegionUnited States
Funding StagePre Seed
Industry Focus
Ai Ml
Ecommerce
Saas

Investor Signals Profile

active

Sweet Spot

Transformative founders solving consequential AI, defense, physical infrastructure

security
AI infrastructure
developer tools
proactive security
AI agents & tooling
defense tech
distributed systems
physical AI
robotics
aerospace
deep tech

Bullish Signals

Active security + code gen betsexternal
New portfolio co Corridor announcedexternal
Corridor: proactive security thesis confirmedwebsite
Led Artemis Series A (AI-native SIEM)twitter
5 portfolio cos on Forbes AI 50 2026twitter
$2.55B Q1 2026 portfolio funding announcedtwitter
Led DreambaseAI seed (AI analytics)twitter
Led Singularity Defense Series A launchtwitter
Led Entire seed (distributed dev platform)twitter
Backing Mercor: $2B ARR in 24 monthstwitter
Portfolio backs Axiom, Prior Labs, Poolsidetwitter
Hepta tackling fatty liver disease detectiontwitter
Graham Littlehale joins to lead deep techtwitter
Led Heaviside Industries Series B (autonomous munitions)twitter
Heaviside partnership with Nammo for scale productiontwitter
Bunkerhill: 20+ AI agents live at hospitalstwitter
Bunkerhill AI agent saved patient life Month 1twitter
Tines 3B launch: governing wildly successful customer AItwitter
Paraform crossed $100M annualized revenue in 2 yearstwitter
Mercor organizing human intelligence for AI economytwitter

Contrarian Signals

Very broad thesis — security to consumer emailtwitter
Thesis expanding: defense tech, biotech, agentstwitter
Now backing autonomous munitions (ethical defense escalation)twitter

Founder Do's

Build in proactive security
Focus on code gen era problems
Target AI-native security gaps
Replace legacy models (SIEM, email, analytics)
Show wildly successful early customers
Solve infrastructure for AI agents
Address civilization-scale problems
Scale production to tens of thousands
Solve miniaturization in defense tech

Founder Don'ts

Ignore AI-native security angle
Pitch incremental, not transformative
Skip customer traction story

Key GPs & Partners

JS
Jake Storm
Partner
security-focusedthesis-drivenvocal on X
NW
Nancy Wang
Partner
AS
Aydin Senkut
Partner
founder-friendlyactive on Xdefense-tech focused
JD
James Detweiler
Partner
thought leaderessay writer
FH
Feyza Haskaraman
Partner
AI infrastructureconference speaker
GL
Graham Littlehale
Partner
deep techphysical AIdefense-focused

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Fund Overview

Fund Size$900M
Saves0
Website
LinkedIn

Key People

Sundeep Eechu, Aydin Senkut, Katie Knepley Riester

Jake StormPartner
Nancy WangPartner
Aydin SenkutPartner
James DetweilerPartner
Feyza HaskaramanPartner
Graham LittlehalePartner

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