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Rafa Pereira

Unicorn founder

Founder at Onebrief

Lisbon, Lisbon, Portugal

FoundedOnebrief$2.1B · YC

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About

Rafa Pereira has held engineering and product leadership roles at data.world and IAC, and holds BS and MBA degrees. He began software development as a teenager and has continued building products since 1999.

Founder at OnebriefYC S21

Intro paths

YC

Rafa went through Y Combinator (Summer 2021) — any YC alum in your network can reach them through the YC community.

GP

Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Onebrief's batch and knows the company first-hand. YC profile ↗

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In turn, Rafa can intro founders to Onebrief's investors below.

Onebrief's investors · 23

9Yards CapitalNew York · $100K – $10M checks · since 2025Alchemist AcceleratorSan Francisco · $30K checksAnorak VenturesLos Angeles · $25K – $400K checksArden Road VenturesAwesome People Ventures$50K – $250K checksBattery VenturesBoston · $500K – $100M checks · since 2026Caffeinated CapitalSan Francisco · $3M – $50M checks · since 2026General CatalystSan Francisco · $30M checks · since 2024Human CapitalSan Francisco · $250K – $200M checks · since 2025Insight PartnersNew York · $120M – $350M checks · since 2026Kyber Knight CapitalSan FranciscoLynett Capital PartnersJupiterMana VenturesEsteroOurCrowdJerusalemPROOFArlingtonSalesforce VenturesSan Francisco · $5M – $50M checks · since 2026Sapphire VenturesAustin · $5M – $20M checks · since 2026Signia Venture PartnersMenlo Park · $500K – $2M checksSummit Peak InvestmentsFort WorthU.S. Air Forcesince 2019U.S. Navysince 2023Visary CapitalSyossetY CombinatorSan Francisco · $500K checks · since 2021

Co-founders at Onebrief

GDGrant Demaree
Grant DemareeFounder
RP
Rafael PereiraFounder

Frequently asked questions

Who is Rafa Pereira?
Rafa Pereira has held engineering and product leadership roles at data.world and IAC, and holds BS and MBA degrees. He began software development as a teenager and has continued building products since 1999.
Where does Rafa Pereira work?
Rafa Pereira is Founder of Onebrief.
What companies did Rafa Pereira found?
Rafa Pereira founded Onebrief.

Founder mafias

About this profile. Compiled from public sources — Onebrief's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights