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About
Jibril Moinuddin is CEO of Rational and previously founded STEMplicity Education. He attended the University of Michigan.
CEO at RationalYC S26
Intro paths
Jibril went through Y Combinator (Summer 2026) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Jared Friedman, YC Group Partner — the partner who ran Rational's batch and knows the company first-hand. YC profile ↗
In turn, Jibril can intro founders to Rational's investors below.
Rational's investors · 4
Co-founders at Rational
Frequently asked questions
- Who is Jibril Moinuddin?
- Jibril Moinuddin is CEO of Rational and previously founded STEMplicity Education. He attended the University of Michigan.
- Where does Jibril Moinuddin work?
- Jibril Moinuddin is CEO of Rational.
- What companies did Jibril Moinuddin found?
- Jibril Moinuddin founded Rational.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
University of Michigan mafia477
Also came through, then founded or led a company.
University of Michigan College of Engineering mafia37
Also came through, then founded or led a company.
Milpitas High School mafia2
Also came through, then founded or led a company.
TrueFoundry mafia2
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Rational'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