Chert
Chert is a YC Spring 2026 (P26) company. Based in San Francisco, CA, USA. Team of 2.
About Chert
Summary
Chert builds programmable iMessage infrastructure for businesses that need to automate customer conversations at scale. It gives B2C startups, customer experience teams, and sales teams the ability to run AI-driven or human-assisted threads over native blue-bubble iMessage, replacing generic SMS blasts and disconnected chat tools. The platform handles delivery, typing indicators, read receipts, multi-recipient threads, file attachments, and SMS/RCS fallback in a single API-accessible layer.
Go-to-market
Businesses adopt Chert directly through a booked sales call, targeting B2C companies and customer-facing teams that already rely on outbound messaging to reach end users.
From the Y Combinator listing
iMessage infrastructure for business
Chert provides the infrastructure for businesses to automate conversations over iMessage. We’re already working with B2C startups, customer experience teams, and sales teams to reach end users through trusted and conversational messaging.
Facts
- B2B / B2B
- San Francisco, CA, USA
- 2
- Active
- Early
Founders (2)
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