Letterbook

YC S23 · Active · AI-native customer support platform

Competitors

Companies closest to Letterbook
Company	Category	Status	Program
FirstSupport.aiShared: knowledge base, customer support, ticketActiveAI	AI	Active	YCW21
AtlasShared: customer service, customer support, zendeskActiveAI	AI	Active	YCW22
ParahelpShared: customer service, customer support, ticketActiveAI	AI	Active	YCS24
ChatwootShared: customer service, customer support, zendeskActiveAI, Devtools	AI, Devtools	Active	YCW21
ArigladShared: knowledge base, customer service, customer supportActiveAI	AI	Active	YCW23

Adjacent

Companies next to Letterbook
Company	Category	Status	Program
HiOperatorShared: customer service, ticket, supportActiveOther	Other	Active	YCS16
OpenShared: customer service, customer support, emailActiveAI, Devtools	AI, Devtools	Active	YCW24
RulebaseShared: customer service, customer support, emailActiveAI	AI	Active	YCF24
NaraShared: customer service, customer support, websiteAcquiredAI	AI	Acquired	YCW22
cloud humansShared: support ticket, customer service, operationsActiveAI	AI	Active	YCW21

Also from S23 in AI

All of S23

Company	Category	Status
MindedCursor for AI AgentsActiveAI, Devtools	AI, Devtools	Active
AccendAI agents for commercial underwriting at banks and fintechsActiveAI	AI	Active
AgentCollectB2B debt collection powered by AI agentsActiveAI	AI	Active
AglideConnect every disconnected app to your SSO.ActiveAI	AI	Active
AirgoodsThe modern distributor for grocers.ActiveAI	AI	Active
AiSDRAI that finds the right buyers and books sales meetingsActiveAI	AI	Active

About Letterbook

Letterbook is the AI-native alternative to Zendesk, Freshdesk, Zohodesk, and Intercom. We help companies manage and resolve customer support tickets across email, in-app feedback, and website forms. Our AI will triage your tickets, write replies, and build your knowledge base.

YC batch: S23 · Summer 2023
Status, per YC: Active
Category: AI
Team size: 2
Location: San Francisco, CA, USA
Checked: 33m ago

YC tags: Customer Service, Customer Support, AI

Letterbook in S23: 220 companies, 77% AI

Letterbook: questions

Which YC batch was Letterbook in?

Letterbook was in Y Combinator's Summer 2023 batch (S23).

Is Letterbook still active?

Y Combinator lists Letterbook as active.

Where is Letterbook based?

Letterbook lists San Francisco, CA, USA as its location on YC's directory.

Sources: each program's public company list, read twice a week. Not affiliated with Y Combinator or any other program. Logos via logo.dev; trademarks belong to their owners.