Product & judgment
We pressure-test what to build, what to cut, and what has to be true. Direct answers through product resets, board pressure, and financing decisions.
Capital is a commodity. Attention is not.
We back technical founders at formation and category leaders at growth. Then we put our capital, judgment, and reach to work.
Portfolio
Selected investments.
View all investments
AI, Infrastructure & National Resilience
Tunnel boring machines and underground transportation infrastructure.
Invested 2026Series D
Software, Finance & Applied AI
Corporate cards and finance automation.
Invested 2019Seed (personal) · Series B (personal) · Series D (Anti Fund)
24/7, non-custodial trading across crypto, stocks, commodities, FX, and prediction markets.
Invested 2026Series A
Consumer Platforms & Brands
Acquisitions & Public Listings
Cloud observability platform; acquired by Palo Alto Networks for $3.35B.
Invested 2019Seed · Acquired
Continual-learning infrastructure for enterprise agents; acquired by DoorDash in March 2026.
Invested 2025Seed · Acquired
* Personal investment
Approach
Technical conviction. Cultural firepower.
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 & distribution
We help you reach customers and partners, sharpen the story, and make the launch count.
Capital & talent
We introduce investors and senior hires who understand what you are building, and help you make the case.
“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.”
More founder references
“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.”
Geoff Woo invested personally in Ramp's Seed and Series B rounds. Anti Fund invested in Series D.
“Awesome working with Jake Paul, Geoff Woo and Anti Fund!!”
“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.”
Chronosphere was a personal investment by Geoff Woo.
“Thanks for all of support! Couldn't ask for a better partner.”
“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.”
“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.”
The best founders are anti before they are obvious.
Read the manifestoTeam
People behind the fund.
Geoff Woo
Co-founder & Managing Partner
Entrepreneur and engineer; co-founder of Archive, Ketone-IQ, and W.
Full biography
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.
Jake Paul
Co-founder & Managing Partner
Entrepreneur and professional boxer; founder of Most Valuable Promotions.
Full biography
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.
Logan Paul
General Partner
Co-founder of PRIME, host of Impaulsive, and professional wrestler.
Full biography
Logan Paul is an entrepreneur, creator, and professional wrestler. He co-founded PRIME, hosts Impaulsive, and brings global consumer, media, and distribution experience.
Steve Han
Partner
Former investor at March Capital; previously at Deutsche Bank.
Full biography
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.
Laura Brady
Managing Director, Capital Formation
CEO of Jake Paul's family office; 15 years in capital markets.
Full biography
Laura Brady is CEO of Jake Paul's family office. She was previously EVP at Strive and spent 15 years in capital markets at Bank of America and Knight Capital. She holds a BA in Government from Harvard University.
Field notes
On the ground.
Field visit / El Segundo
Jake Paul & Geoff Woo visit El Segundo
On the ground with the hardware startups building in El Segundo.
Watch the visitMore conversations & field notes
Anti Fund / Silicon Valley
48 hours with Anti Fund
Geoff Woo and Logan Paul across Silicon Valley, with Sam Altman, Sequoia, and the Anti Fund founder network.
Watch the visit
Field visit / Anduril
Inside Anduril with Palmer Luckey
A look inside autonomous defense systems, American manufacturing, and the technologies reshaping national resilience.
Watch the visitConversations & events
Anti Fund SummitWatch