About
Mattan Griffel studied philosophy and finance at New York University and co-founded Ophelia, a Y Combinator-backed opioid recovery platform. He is faculty at Columbia Business School and an Innovation Fellow at the Lang Center for Entrepreneurship.
Mattan Griffel @mattangriffel
I spend half of my life in some form of 2 factor authentication
May 22, 2026 · ♥ 1
Mattan Griffel @mattangriffel
Love what this team is working on. Great work @jwmares! https://t.co/cCnVrjPaI7
Dec 22, 2025 · ♥ 5
Mattan Griffel @mattangriffel
I spend a solid 20% of my waking time in some form of 2 factor auth
Oct 27, 2025 · ♥ 3 · ⇄ 1
Founder/CEO at One MonthYC S13
Intro paths
Mattan went through Y Combinator (Summer 2013) — any YC alum in your network can reach them through the YC community.
In turn, Mattan can intro founders to One Month's investors below.
One Month's investors · 2
Co-founders at One Month
Founder at OpheliaYC W20
Intro paths
Mattan went through Y Combinator (Winter 2020) — any YC alum in your network can reach them through the YC community.
In turn, Mattan can intro founders to Ophelia's investors below.
Ophelia's investors · 8
Co-founders at Ophelia
