Fueling the Future of Innovation
Rebel aims to invest in the top 10% of startups (top 0.1% of applicants) from Y Combinator, the #1 accelerator in the world with 90+ unicorns and $600B+ in portfolio company value.
About Us
Rebel’s investing partners are accomplished Y Combinator alumni who have co-founded companies now valued at over $100B in aggregate — including Reddit, Instacart, Cruise, Gusto, Scribd, Rappi, and more — and together invested in over 200 startups with top-decile portfolio returns. Rebel has unique access to top Y Combinator startups with a nearly 100% deal win rate, typically pre-Demo Day. The fund utilizes a proprietary machine-learning algorithm called Rebel Theorem 3.0 to help validate and screen potential investments, building a diversified portfolio of Y Combinator startups that is statistically powered to outperform.
Rebel Partners
A team of top Y Combinator alumni who have co-founded companies now valued over $100B in aggregate.
Steve Huffman
Daniel Kan
Max Mullen
Trip Adler
Jonathan Hirsch
Sebastian Mejia
Dan Siroker
Rebel Managing Partner
Our Managing Partner is a successful serial entrepreneur turned Silicon Valley venture fund manager, bringing decades of technology startup operating and investing experience to support our portfolio founders. As a founder, he's built startups backed by the world's top venture capital funds including Y Combinator, a16z, NEA, Khosla, Greylock and more, and led multiple companies to a successful exit. As an investor, he’s built venture funds that have seeded technology startups now valued at over $20B in aggregate.
Co-Founder of Infosurv & Intengo (acq LON:NFC), CrowdMed (YC W13), Pioneer Fund & Rebel Fund
Portfolio News
Knowledge Sharing
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Event Photos
LP Wine & Olive Oil Tasting Event 2025
Annual General Meeting 2025
Annual General Meeting 2024
LP Wine Tasting Event 2023
Annual General Meeting 2023
Annual General Meeting 2022
LP Wine Tasting Event 2022
Testimonials
I thought the process was incredibly smooth. I also loved that Eddie was already prepped and came to the call with great questions/context/ etc. I would highly recommend Rebel to every other YC Founder and will.
I only have great words about both the investing process and the support from Rebel so far.
I appreciated the conversation with Max a lot, and we like how you think and operate. We would love for you and Rebel Fund to be a part of our journey!
We're really excited to be part of the team! Jared and Jonathan have been great and super easy to work with, absolutely zero complaints or negative feedback on our end
The Rebel process was unmatched. It's founder friendly, quick, thoughtful and very straight forward. There was really nothing I could critique. Would highly recommend Rebel to any of my founder friends.
We were fortunate to have you on our side. Your fundraising guidance was invaluable to us! Furthermore, your assistance with investor connections was always prompt and of high quality. You are one of the best investors any founder can collaborate with!
The process was great. Thanks for the offer, Rebel’s portfolio and team are super impressive
It was a pleasure meeting Jonathan Hirsch and Michelle last week - the experience was smooth and efficient. Also, founders outside of Bookface also had great things to share about their experience - all great signs.
We definitely want you in, so we'll make an exception and go over our 'do not exceed' max of $5M to make it work. You guys will be the last ones in. Really excited to work with you, have no doubt you'll add huge value
Dan was one of my most memorable conversations. We love working with investors who are founders themselves, as they just 'get it’.
The Rebel investment process is amazing and actually inspired many of the future engagements we had with other funds. Looking forward to building the future together!
Regarding the process, it was one of the best experiences I’ve had so far. Transparent, efficient, founder friendly and value added from day one, so I have nothing to say that can be improved so far!
Portfolio
Rebel has made 200+ investments to date across a wide variety of technology verticals
Contact Us
Rebel Fund only invests in Y Combinator-backed startups and does not respond to unsolicited investment offers. Founders can apply to Y Combinator here.