See what others miss
We recognize hard-won technical truth before the market has a name for it.
We back technical founders at formation and category leaders at growth. Then we put our capital, judgment, and reach to work.
We study the technology, pressure-test the market, and back founders with a view the crowd has missed. Then we help them reach the people who matter: customers, talent, partners, and their next investors.
We recognize hard-won technical truth before the market has a name for it.
We help the right talent, customers, partners, and public understand why the company matters.
We work with founders on product decisions, key hires, customer introductions, and the next financing.
Axiom I
The best founders are anti before they are obvious.
Axiom II
Technical truth creates the edge. Distribution compounds it.
For limited partners
Pre-seed & seed
We back technical founders before consensus forms. The work starts when the company does.
Growth & pre-IPO
We concentrate behind category leaders where we have conviction in what comes next.
The stage changes; the underwriting standard does not. We build long-term relationships with LPs who share our conviction in frontier technology.
Discuss the strategyManifesto 01 /
Read the full manifestoOur first set of Venture and Growth funds backed the transformer / large language model revolution. We’ve backed the key leaders across the entire stack that will define the singularity era. The next wave scarcity chokepoints will be automating the physical world with robotics, defense tech, energy and manufacturing. Our next set of funds will back the robotics & automation revolution.
You build the company. We help you win the customers, talent, and capital to keep going.
We pressure-test what to build, what to cut, and what has to be true for customers and the market to care.
We help you reach customers and partners, sharpen the story, and make the launch count.
We introduce investors and senior hires who understand what you are building, and help you make the case.
We stay close through product resets, board pressure, and financing decisions. Direct answers when the stakes are highest.
Tell us what you're building, why it matters, and what you see that others don't. Send a deck or product link.
Tell us what you're building
Co-founder & Managing Partner
Geoff Woo is an entrepreneur and engineer. He co-founded Archive, Ketone-IQ, and W. His first company, Glassmap (YC S11), was acquired by Groupon. A Stanford Computer Science graduate, he is a co-inventor and co-author of numerous US patents and peer-reviewed science papers.
Co-founder & Managing Partner
Jake Paul is an entrepreneur and professional boxer. His Paul vs Tyson event reached 65M peak concurrent streams on Netflix, and he was among Google's five most-searched athletes in 2024. He founded Most Valuable Promotions and co-founded Betr and W.
General Partner
Logan Paul is an entrepreneur, creator, and professional wrestler. He co-founded PRIME, hosts Impaulsive, and brings global consumer, media, and distribution experience.
Partner
Steve Han previously invested at March Capital and worked at Deutsche Bank. Born in Korea and raised across India and China, he studied Economics and Environmental Economics & Policy at UC Berkeley and served in the ROK Army.
The useful measure of a venture partner is the work founders can name.
Operating Evidence
"Anti Fund was our first investor and a key sounding board for strategic decisions. They're direct and candid when it matters, skipping unnecessary niceties in favor of clear, actionable support. Geoff has been my most valuable investor from the start, pushing me towards market-validated technical verticals and a business development approach focused on generating meaningful signal before noise."
CEO & Co-founder, Efference
"Geoff was one of the earliest investors for both Ramp and Paribus, and he is a trusted advisor and a key strategic sounding board. With Ramp, Geoff has directly boosted our topline revenue and growth by introducing us to and helping us close key customers and hire superstar executives. Geoff is on my shortlist to bring onboard for any company I'm involved with."
CEO & Co-founder, Ramp
Ramp was a personal investment by Geoff Woo.
"Geoff was one of our first investors and committed to backing Chronosphere before our company was even set up. He is incredibly networked in tech and investor circles and has been a key strategic thought partner. He is one of those rare humans that wields deep technical, product, and business expertise."
CTO & Co-founder, Chronosphere
Chronosphere was a personal investment by Geoff Woo.
"Thanks for all of support! Couldn't ask for a better partner."
CEO, Metis
"Geoff is an incredible visionary with sharp intuition. As our earliest investor, he has consistently given advice that proves true time and time again. His strong connections with the most influential minds in Silicon Valley are the exact fuel that early-stage founders can only dream of. Essentially, he brings his A-game. Founders just need to bring theirs."
Gun Choi
CEO & Co-founder, Linedot
"Geoff and Steve are one of the best partners to have as a founder. They are incredibly well connected - Geoff introduced us to Karim from Ramp who became our investor. Steve is always responsive, pushing us to think in unconventional angles. I would highly recommend Anti Fund to any exceptional founders."
CEO & Co-founder, Pensive
AI, Infrastructure & National Resilience
Autonomous defense systems and manufacturing.
Applied AI systems and end-to-end software agents.
Defense systems for modern military operations.
General-purpose AI for the physical world.
Frontier AI research and products.
Cloud infrastructure for AI and data workloads.
Purpose-built chips for transformer inference.
Brain-computer interfaces.
Continual-learning infrastructure for production AI.
American-made motors and actuators for drones and robots.
Perception and compute infrastructure for robotics.
Nuclear fuel infrastructure.
Autonomous surface vessels for maritime defense.
Tunnel boring machines and underground transportation infrastructure.
Autonomous tactical systems for U.S. and allied defense.
AI models and interfaces for intuitive human-robot interaction.
Spacecraft and propulsion for orbital logistics.
AI compute infrastructure in low Earth orbit.
Commercial fusion energy.
Software, Finance & Applied AI
Corporate cards and finance automation.
Global prediction-market platform.
AI-powered creator marketing infrastructure.
Insurance and risk infrastructure for ambitious businesses.
Verifiable exchange infrastructure built with custom ZK systems.
Real-time AI desktop assistance.
AI-guided Bible study and prayer.
Creative workspace for AI agents and generative models.
Payments infrastructure for AI agents.
AI grading and tutoring for higher education.
AI voice research and products.
Banking infrastructure for the innovation economy.
AI-native sales infrastructure for startups.
24/7, non-custodial trading across crypto, stocks, commodities, FX, and prediction markets.
Perpetual futures for private-market and other hard-to-access assets.
Consumer Platforms & Brands
Temperature-controlled sleep systems.
Sports betting, fantasy, and media.
Prebiotic soda.
High-protein overnight oats sold direct-to-consumer.
Luxury travel platform with hotel-grade hospitality.
Ketone-based energy and performance products.
Creator commerce infrastructure.
Live entertainment and lifestyle platform.
Global, creator-led 7 vs 7 soccer league.
Tobacco-free nicotine pouch brand.
Sparkling margarita ready-to-drink beverages.
Men's personal care.
Hard seltzer and ready-to-drink beverages.
High-protein popcorn.
Acquisitions & Public Listings
Cloud observability platform; acquired by Palo Alto Networks for $3.35B.
Stablecoin payments infrastructure; acquired by Ripple for $200M.
Public-safety drone infrastructure; acquired by Flock Safety.
Continual-learning infrastructure for enterprise agents; acquired by DoorDash in March 2026.
Personal AI agent acquired by Cognition in July 2026.
* Personal investment
Conversations and field visits show the thesis in practice.

Field visit / El Segundo
On the ground with the hardware startups building in El Segundo.

Anti Fund / Silicon Valley
Geoff Woo and Logan Paul across Silicon Valley, with Sam Altman, Sequoia, and the Anti Fund founder network.

Field visit / Anduril
A look inside autonomous defense systems, American manufacturing, and the technologies reshaping national resilience.
Archive