We put founders in front of millions.
GR Angel is Guillermo Flor and Rubén Domínguez Ibar, the writers behind Product Market Fit and The VC Corner. 600,000+ LinkedIn followers. 400,000+ newsletter subscribers. 500M+ impressions a year. We write the check, then we put you in front of millions of potential customers and investors.
The ones you've heard of.
Series D 2026 · $9B Valuation
Replit
The pioneer of vibe coding. $10M → $525M ARR in eighteen months, 50M+ users. YC rejected them three times; Paul Graham personally fought to get them in.
Series C 2026 · $1.2B Unicorn
HappyRobot
The AI workforce for the real economy. DHL, Kuehne+Nagel and Uber among 150+ enterprise customers; 10x revenue after the Series B we joined.
$10M+ Raised · YC S26
RonanRx
The full-stack pharmaceutical company for personalized peptides and GLP-1s — manufactured in-house, personalized by AI. Raised on uncapped SAFEs before their first investor meeting.
$95M Valuation · Pre-Revenue
QFEX
The first 24/7 exchange for traditional markets: perps on equities, commodities, FX. Ending a settlement schedule set in 1865. Backed by General Catalyst and Paul Graham.
$31M Seed · MIT Spinout
Apollo Atomics
Making nuclear power cheaper than natural gas, shrinking the reactor's bulkiest component into a factory-made module.
First Hotel on the Moon
GRU Space
A White House invitation, 1B+ views. The founder is 22, ex-Tesla. Our most delusional bet — and proud of it.
YC S25 · $6.2M Seed
Nozomio
Product lab focused on personal AI and context. Built by Arlan, one of the youngest founders we've ever backed.
YC S26 · A Sovereign Starlink
Exosat
Building a neutral, sovereign alternative to Starlink. $400M in customer LOIs and a first launch booked for April 2027.
Two people. Zero committees.
Guillermo Flor
Writes Product Market Fit and AI Market Fit, read by 120,000+ founders and investors, plus a column at Entrepreneur. 40+ angel investments.
Full Profile → LinkedIn →
Rubén Domínguez Ibar
Writes The VC Corner, 370,000+ subscribers across his newsletters. One of the most followed VC voices in the world.
Full Profile → LinkedIn →Back us.
GR Angel is a private investment company — Guillermo, Rubén and a small group of private investors backing the top AI companies of every Y Combinator batch, through direct investments and private SPVs. We are not a fund and we don't publicly offer securities. Founders let us in because of what comes with our check: 600K+ LinkedIn followers, 400K+ newsletter subscribers, 500M+ impressions a year. Distribution is our edge.
We're always open to meeting family offices and private investors who want to back GR Angel and join the group behind our deals. If that's you, get in touch.
YC-reported TVPI for diversified 2018-2020 demo day investors, vs ~1.1-1.6x for comparable US venture funds (Carta). Unicorn rate vs 2.5% seed-stage average (AngelList). Past performance does not guarantee future results.
