Doron Segal
InvestorFounderFounder at Per Diem
San Francisco, California
Writes $5K – $50K checks · typically $25K
FoundedPer Diem · YC
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About
Doron Segal is co-founder and CTO of Per Diem, a company in Y Combinator's Winter 2021 batch, and has previously co-founded the startups Heartistfy and CityOwls. He is a self-taught engineer who began his career at age 16, later worked as a security researcher at a cybersecurity company, and served as CTO of NK Stream LTD, where he managed four teams totaling 15 engineering and IT staff. He also served as a commander in a technology unit in the Israeli Army.
Founder at Per DiemYC W21
Intro paths
Doron went through Y Combinator (Winter 2021) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Brad Flora, Backing expeditions into the future — the partner who ran Per Diem's batch and knows the company first-hand. YC profile ↗
In turn, Doron can intro founders to Per Diem's investors below.
Per Diem's investors · 5
Co-founders at Per Diem

Investments
Investor
Per curated public sources.
Network3
Investors connected to Doron in public investor directories — a warm-intro map.
Frequently asked questions
- Who is Doron Segal?
- Doron Segal is co-founder and CTO of Per Diem, a company in Y Combinator's Winter 2021 batch, and has previously co-founded the startups Heartistfy and CityOwls. He is a self-taught engineer who began his career at age 16, later worked as a security researcher at a cybersecurity company, and served as CTO of NK Stream LTD, where he managed four teams totaling 15 engineering and IT staff. He also served as a commander in a technology unit in the Israeli Army.
- Where does Doron Segal work?
- Doron Segal is Founder of Per Diem.
- What check size does Doron Segal write?
- Doron Segal typically writes checks of $5K – $50K.
- What companies did Doron Segal found?
- Doron Segal founded Per Diem.
- What companies has Doron Segal invested in?
- Investments tracked here include MagicBell.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
Apple mafia441
Also came through, then founded or led a company.
University of California, Berkeley, Haas School of Business mafia366
Also came through, then founded or led a company.
Ben-Gurion University of the Negev mafia131
Also came through, then founded or led a company.
OpenTable mafia10
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Per Diem'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































