Ethan Hou
InvestorFounderFounder at Letterbook · Founder at Blume Benefits
Berkeley, California, United States
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You →Marissa · together at Berkeley Artificial Intelligence Research (2023) →Ethan
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You →Jamie · 5 people · together at YC S23 →Ethan
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About
Founder of Letterbook, an AI-native customer support platform that integrates with email, databases, and payment systems to help teams manage and resolve support tickets.
Founder at LetterbookYC S23
Intro paths
Ethan went through Y Combinator (Summer 2023) — 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 Letterbook's batch and knows the company first-hand. YC profile ↗
In turn, Ethan can intro founders to Letterbook's investors below.
Letterbook's investors · 7
Co-founders at Letterbook

Founder at Blume BenefitsYC W24
Intro paths
Ethan went through Y Combinator (Winter 2024) — any YC alum in your network can reach them through the YC community.
In turn, Ethan can intro founders to Blume Benefits's investors below.
Blume Benefits's investors · 3
Co-founders at Blume Benefits


Experience
- Letterbook (YC S23)Foundercurrent2024 — present
- QuillSWE2023
- Berkeley Artificial Intelligence ResearchNeuroscience/ML Research2023
- StreamSWE2023
- AI Entrepreneurs at BerkeleyExecutive Board2023
Skills & more
From Ethan's professional profile.
Investments
Investor
Per curated public sources.
Frequently asked questions
- Who is Ethan Hou?
- Founder of Letterbook, an AI-native customer support platform that integrates with email, databases, and payment systems to help teams manage and resolve support tickets.
- Where does Ethan Hou work?
- Ethan Hou is Founder of Blume Benefits and Founder at Letterbook.
- What companies did Ethan Hou found?
- Ethan Hou founded Blume Benefits, Letterbook.
- What companies has Ethan Hou invested in?
- Investments tracked here include Respan.
- Where did Ethan Hou go to school?
- Ethan Hou studied at University of California, Berkeley (Bachelor of Arts - BA, Computer Science).
Founder mafias
Y Combinator mafia10,601
Also came through, then founded or led a company.
Same school
Also attended University of California, Berkeley2,000
+ 1,994 more
Shared employers
Also worked at Letterbook (YC S23)1
Also worked at Quill2
Also worked at Berkeley Artificial Intelligence Research32
+ 26 more


























