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Letterbook

letterbook.ai · San Francisco · founded 2023 · team 2 founders · YC Summer 2023, Raised $2M seed funding (Jan 2025) · trust 0/4

AI-native customer support platform

This dossier was built by Clark from a public scan on 2026-07-04 and is unclaimed. Is this your startup? Claim it.

Verified facts

Company NameLetterbook
source: https://www.ycombinator.com/companies/letterbook
TaglineAI-native customer support platform
source: https://www.ycombinator.com/companies/letterbook
CitySan Francisco
source: https://www.ycombinator.com/companies/letterbook
Founded2023
source: https://www.ycombinator.com/companies/letterbook
Team Size2 founders
source: https://www.ycombinator.com/companies/letterbook
StageYC Summer 2023, Raised $2M seed funding (Jan 2025)
source: https://www.ycombinator.com/companies/letterbook https://www.ycombinator.com/launches/593n9-ai-native-customer-support-platform
FoundersDawson Chen (CEO, Yale dropout), Ethan Hou (CTO, Berkeley dropout)
source: https://www.ycombinator.com/companies/letterbook https://www.ycombinator.com/launches/593n9-ai-native-customer-support-platform
EntityNot found in public records
source: No public incorporation record found
Contact Emaildawson@letterbook.ai
source: https://www.ycombinator.com/launches/593n9-ai-native-customer-support-platform

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