Rebel aims to invest in the best 0.1% of the 40,000+ tech startups that apply each year to Y Combinator, the #1 accelerator in the world with 80+ unicorns and $600B+ in portfolio company value. The fund’s due diligence and investing decisions are made by a team of accomplished Y Combinator alumni who have founded companies now valued over $85B in aggregate, invested in 200+ startups, and generated top-decile portfolio returns. Rebel utilizes a proprietary machine-learning algorithm called Rebel Theorem to help validate and screen potential investments, building a diversified portfolio of top 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 $85B in aggregate and support Rebel’s due diligence, investment decisions, and portfolio support part-time while running their respective companies.
Steve Huffman
Reddit
YC S05
Daniel Kan
Cruise
YC W14
Max Mullen
Instacart
YC S12
Trip Adler
Scribd
YC S06
Jonathan Hirsch
Paradigm
Non-YC biotech partner
Sebastian Mejia
Rappi
YC W16
REBEL LEADERSHIP
Our Managing Partner is a successful serial entrepreneur turned top-decile 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 and led companies to successful exits, and as an investor, built venture funds that have seeded technology startups now valued at over $10B in aggregate.
Jared Heyman
Managing Partner
Co-Founder of Infosurv & Intengo (acq LON:NFC), CrowdMed (YC W13), Pioneer Fund & Rebel Fund
Richard Sussman
Strategic Partner (Fund I)
Partner at Black Dragon Capital, Co-Founder of Nordic Eye & Rebel Fund
PORTFOLIO NEWS
Knowledge sharing
On Y Combinator startups and the AI revolution
ChatGPT launched on November 30, 2022, and gained over one million users within five days. Now a couple of months later, it’s fully mainstream with over 100 million users — this is faster mass adoption of a technology product than I’ve ever seen. It’s easy to forget... read more
On the shifting landscape of YC batches (2023 update)
A few years ago, I wrote a post On the shifting landscape of YC batches to analyze statistical trends in Y Combinator startups by industry over time. Since Rebel Fund has since collected hundreds of thousands of data points on thousands of YC startups, we’re in a... read more
On the life and death of Y Combinator startups
I’ve written much over the years about the incredible success of Y Combinator startups, but as any experienced startup founder or investor knows, there is a dark side to technology innovation… lots of startups just don’t make it :( At Rebel Fund, our job is... read more
On the Y Combinator “premium” (2022 update)
One of the most common complaints I hear amongst Y Combinator startup investors is their sky-high valuations. It’s not uncommon for YC startups to raise capital at 2-3 times the valuation of their non-YC... read more
On YC startup exits
As a venture capital fund manager, one of the questions I’m asked most often by LPs is “How long will it take to get my money back?” At Rebel Fund, our job is to invest in the top 5–10% of new Y Combinator... read more
On 101 Y Combinator unicorns
In August 2022, Y Combinator released its latest Top Companies list, now including 314 private and 16 public YC startups each valued at over $150M. YC officially reported ‘over 80’ of these startups to be valued at over $1B, but... read more
On Rebel Theorem 2.0
A couple of years ago I published On Rebel Theorem to reveal the proprietary machine-learning algorithm we use at Rebel Fund to maximize our odds of success investing in tomorrow’s top Y Combinator startups. We’ve recently finished a complete overhaul of the... read more
On the Y Combinator Summer 2022 batch
Last year I published an in-depth analysis of the Y Combinator Summer 2021 batch that was later shared by YC itself! I’ll repeat the tradition this year for the Summer 2022 (S22) batch, since we’re in an excellent position to do so at Rebel Fund after collecting over.... read more
On the rapid internationalization of Y Combinator startups
In my last post On Y Combinator batch quality at scale we looked at the dramatic increase in the number of YC startups over the years and how batch quality has held up. Anyone who has been to YC Demo Days in recent years has probably noticed.... read more
On Y Combinator batch quality at scale
Since Rebel Fund invests exclusively in Y Combinator startups (with 80 YC startup investments to date) I’m often asked by other investors what I think about YC’s quickly growing batch sizes. Since I’ve.... read more
On portfolio strategy and unicorn catching
In my previous post On $600B of Y Combinator Startup Success I discussed our analysis of the 271 companies on Y Combinator’s latest Top Companies list, which now total over $600B in value. A recurring theme.... read more
On $600B of Y Combinator Startup Success
Last year I published a popular blog post On $300B of Y Combinator Startup Success that analyzed YC’s Top Companies list that year, which included 137 portfolio startups with a combined valuation of over $300B. YC recently published... read more
Event PHOTOS
Annual General Meeting 2022
San Francisco, California
LP Wine Tasting Event 2022
Napa Valley, California
portfolio
Rebel has made 100+ investments to date across a wide variety of technology verticals
AccessOwl (S22)
Okta for Startups
Airbyte (W20)
Unlocking ad-blocked traffic across all your tools
Albedo (W21)
Albedo captures the highest resolution satellite imagery
Aleph Solutions (S21)
Allows brands to fully address the main challenges related to e-commerce
Alga Biosciences (W22)
A proprietary feed additive that stops methane emissions from cattle
Algen Biotechnologies (W20)
Using CRISPR to find treatments for cancer
Alt Tex (S22)
ALT TEX creates biodegradable and carbon neutral textiles engineered from food waste
Amiloz (W22)
Tech enabled inventory supplier for corner stores in LatAm
Anchor (S22)
Banking-as-a-service & embedded finance platform for Africa.
Anfin (W22)
Stock trading and wealth management for Vietnam
Arist (S20)
Workforce training via text message
Armilla AI (W22)
Quality Assurance platform for Machine Learning Systems
Array Labs (S22)
Building satellites to create the first real-time high-resolution map of the world
Aviron Interactive (W21)
Aviron is high-intensity Peloton for rowing
Axle (S22)
Axle is “Plaid for Insurance”, focused on auto insurance to start
Axle Health (W21)
Enables any healthcare organization to send health professionals in-home
Bamboo (W20)
We're building Fidelity for Africa
Bend (S22)
Track companies as they cut carbon, and measure your supply chain footprint
Betterhalf (W21)
India's first and only Marriage Super App for 100M people
Cerrion (S22)
Helps manufacturers automatically detect problems on their production lines using Computer Vision
Clinikally (S22)
India's one-stop Telemedicine Platform & Online Pharmacy for Dermatology
Craniometrix (W22)
Diagnosing Alzheimer’s 3x more accurately than a doctor - all from your cellphone
Creizer (W22)
We provide revenue-based financing to online sellers
Crew (S21)
Modern all-in-one recruiting CRM that helps you hire the A players
CypherD Wallet (W22)
We are building crypto wallet for the next billion users without the necessity to be a crypto geek
Daybreak Health (S20)
Online counseling designed for teens
Drapr (S20)
We let shoppers try on clothing online
Drip (S22)
Drip is Klarna for Brazil, built on Pix
Dropezy (W22)
We are a daily needs platform that guarantees 15 minutes deliveries using a network of dark stores
Dr. Treat (S22)
Tech-enabled modern veterinary designed to give your pet highly personalized care
Earth AI (S19)
EARTH AI is the world’s most efficient mineral explorer
Embrace (S19)
Mobile teams find, recreate and fix every error easily
Enable.us (W21)
B2B Hub for Virtual Selling
Evoly (S22)
Makes smart electric and water meters as a service
Finblox (W22)
A crypto neobank for the emerging markets
Flat.mx (S20)
We're the Opendoor of Mexico
Fleek (W22)
B2B wholesale marketplace for second-hand fashion
Flightcontrol (W22)
We make it easy for developers to deploy scalable, secure applications without any devops
Flowly (S21)
The VR version of Calm with a focus on reducing chronic pain for 100 million Americans
Fly.io (W20)
Fly.io runs app servers close to users
Fynn (W20)
ISAs for Trade Schools
Greywing (W21)
Greywing automates crew changes and vessel operations
Gridware (W21)
Makes hardware devices that help utilities identify when and where power lines will cause wildfires
GroMo (W21)
GroMo is an app for agents to sell insurance in India
Gullak Money (S22)
Gullak is a mobile app that automates savings & invests these in Gold
HoyTrabajas (W22)
Supporting companies to recruit their slow-skilled talents at scale in no time
Impossible Mining (W22)
Building underwater robotics vehicles which collect battery metals without harming the environment
InEvent (S19)
Advanced event software for enterprises
Invofox (S22)
Automatic data extraction from invoices
Jeeves (S20)
International infrastructure built from scratch, starting with corporate cards for startups in Mexico, Canada and UK
Jestor (S21)
No-code tool for operations teams
Juno (S19)
A coding school for underemployed university graduates
A bank account and credit card for Canadian SMBs
Khabri (S19)
Audio platform for education serving non-english users
Krave Mart (S22)
Grocery and everyday essentials app in Pakistan
Laskie (W21)
Enterprise platform for professional services
Lofty AI (S19)
We help people buy homes with Zero risk
MadEats (S21)
Building high quality internet food brands engineered for delivery
MarketForce 360 (S20)
We are 'Salesforce' for retail distribution in Africa
Mercator (S22)
Mapping tools for vehicle fleets
Momentu (S22)
Corporate mental health platform for Latin America
Mudafy (S19)
Compass for Latin America
My NextDerma (W21)
Largest dermatology virtual clinic in LATAM
Novig (S22)
The first commission-free, high-frequency sports betting exchange
Outloud.ai (S21)
Building Gong.io for offline retail
Payflow (S21)
A mobile app that allows employees to get paid their salary on-demand
Peakflo (W22)
We streamline receivables and payables for growing SMBs in SE Asia
Philippo (W22)
We provide homeowners in Latam access to their home equity.
Pillar (S21)
Health coaching as a service
Promoted.ai (W21)
Performance ads & discovery for marketplaces
Queenly (W21)
Best way to help women find the exact dress they are looking for
Recall.ai (W20)
Recall is Plaid for voice and video intelligence.
Redcliffe Lifetech (W21)
DNA Diagnostics and Deep insights, IVF clinics, Research
Rider (W22)
Rider is modern parcel delivery for Pakistan.
Room Service (S19)
Provides a React State Management Library and infrastructure for building real-time collaboration
SalaryBook (S21)
We are Gusto for India
SaveIN (W22)
SaveIN is Buy now, Pay later for healthcare in India
Seabound (W22)
We capture CO2 emissions from ships
Serif Health (W22)
Pricing intelligence for healthcare providers
Sequin (S21)
A debit card that builds credit for women
Shape Labs (S15)
Helps you know your body and guides you to live a healthier and more beautiful life
Sitenna (S21)
We connect the market by mapping assets and using workflows to speed up the process
Slauth.io (S22)
Access management platform to secure the cloud
Stackshine (W22)
Stackshine automates software management operations for IT teams
Starling (W22)
Remote patient monitoring of urine
Strong Compute (W22)
1000x faster cloud compute
Synapticure (S20)
Full-stack telehealth for neurodegenerative disease
Together (S19)
Enterprise SaaS to run an internal employee mentoring programs
Trackingplan (W22)
Datadog for analytics and marketing teams
Tranch (S22)
We’re a buy now pay later solution for SaaS and Services
Trusty (W22)
Private MLS for exclusive off-market real estate
Turing (W20)
Replace consumer brand's formulation testing loop development with our software
Typewise (S22)
Text prediction to boost productivity in customer service and sales
Underground Cellar (W15)
Leading wine e-commerce company that is changing the way wine is bought and sold
Unified National (W22)
Sells homes directly to buyers -- they can tour any time and buy online with peace of mind
Unravel Carbon (W22)
We are an enterprise software that helps companies track and reduce their carbon emissions, focusing in Asia
Vahan (S19)
Building a full-stack labor marketplace for the gig-economy in India
Verifiable (S20)
API to verify and monitor healthcare licenses
WareIQ (S20)
Amazon-prime like logistics for online brands in India
Writesonic (S21)
AI-powered copywriting and content marketing
Wyvern (W22)
High-res images from space to measure natural resources and crop health.
Yassir (W20)
Leading Super App for French Speaking Africa
Z1 (W21)
Digital bank for teenagers in LatAm
Zuma (S21)
Sales engagement platform that helps businesses create the fastest conversion experience for any internet lead
Zywa (W22)
Neobank for teenagers in the Middle East and North Africa
© Rebel 2019-2023
This website is not sponsored or endorsed by Y Combinator. “Y Combinator” is a registered trademark of Y Combinator, LLC