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Daniel Martinez
FounderFounder \u0026 Product at Callbook AI
San Francisco, California, United States
FoundedCallbook AI · YC
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About
Founder and product lead at Callbook AI, previously CTO there and Chief Product Officer at Treble (YC S19). Has spent over five years leading B2B products.
Founder \u0026 Product at Callbook AIYC S26
Intro paths
Daniel 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 Jon Xu, General Partner at Y Combinator — the partner who ran Callbook AI's batch and knows the company first-hand. YC profile ↗
In turn, Daniel can intro founders to Callbook AI's investors below.
Callbook AI's investors · 4
Co-founders at Callbook AI
Frequently asked questions
- Who is Daniel Martinez?
- Founder and product lead at Callbook AI, previously CTO there and Chief Product Officer at Treble (YC S19). Has spent over five years leading B2B products.
- Where does Daniel Martinez work?
- Daniel Martinez is Founder \u0026 Product of Callbook AI.
- What companies did Daniel Martinez found?
- Daniel Martinez founded Callbook AI.
Founder mafias
Y Combinator mafia10,594
Also came through, then founded or led a company.
treble.ai mafia3
Also came through, then founded or led a company.
About this profile. Compiled from public sources — Callbook AI'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