Mattan Griffel

Ight, so here’s the deal with Mattan Griffel-this guy’s the real deal in the startup world. So, he’s a two-time Y Combinator alum, which is already a huge badge of honor, right? He jumped into YC’s W20 batch, and then again in S13, so he’s not just lucky; he’s got that grit and hustle that keeps him coming back.

Mattan’s process? It’s all about solving big, messy problems and jumping right into the thick of it. First, he co-founded Ophelia, an online platform tackling opioid addiction-super heavy, super needed. That’s some advanced social impact shit, showing he cares about real-world problems, not just chasing the next quick win. Then he jumped into One Month, which is all about making online learning fast, fun, and accessible. Basically, he’s been smashing at building tech that’s not just cool but actually changes lives.

But here’s what’s wild-this guy’s not just in the trenches building stuff. He’s also teaching at Columbia Business School as an Adjunct Assistant Professor, dropping knowledge on entrepreneurship, leadership, and tech. The students love him, and he’s even got Forbes’ 30 Under 30 in Education on his belt. He’s all about making a real impact on the next gen of founders, not just chasing startups.

And he’s been rubbing elbows with some big names-Goldman Sachs, Bloomberg, JPMorgan, Pepsico, GM, Condé Nast, Amex-you name it. He’s advised them, worked with them, learned from them. Plus, his work’s been featured everywhere-The New York Times, Forbes, Bloomberg, MIT Tech Review. So it’s clear: he’s legit.

What about his background? He studied Philosophy and Finance at NYU-yeah, Philosophy. Like, he’s thinking about the metaphysics of consciousness under heavyweights like David Chalmers and Ned Block. That’s deep. But it’s also telling-he’s always been curious about big questions, about understanding how things really work beneath the surface. That curiosity? It’s what drives him to build stuff that matters.

He’s also super plugged into the startup and tech scenes-Sandbox NYC, GrowHack, The Front Labs, appssavvy, Morgan Stanley-all places where he’s either advising, collaborating, or just soaking up new ideas. His whole vibe screams that he’s about community, learning, and pushing boundaries.

So, what’s the takeaway? Mattan’s got this killer combo: he’s deeply curious, he’s got that academic edge, and he’s not afraid to jump into messes that matter-whether that’s addiction, education, or whatever next big challenge. His story? It’s about building tech that’s effective, teaching the next wave of founders, and never settling for bullshit. He’s the kind of guy who’s always looking for the next big problem to solve, and he’s crushed it at every step.

TL;DR: Mattan Griffel is a startup vet, educator, and social impact guy who’s been through YC twice, built platforms that actually matter, and is out here shaping the future of entrepreneurship. He’s the real deal-no Cap.