Cardinal
Cardinal is a YC Winter 2026 (W26) company. Based in San Francisco, CA, USA.
About Cardinal
Summary
Cardinal builds an AI platform that runs precision outbound sales for B2B companies. Its agents handle prospect research, outreach, follow-up, scheduling, and CRM syncing, replacing the stack of tools and the GTM engineering work those motions typically require. The target customer is a founder or sales leader who wants a coordinated outbound operation without assembling it manually.
Go-to-market
Cardinal sells to B2B founders and sales leaders, with a demo-request flow as the entry point and a direct sales motion led by the founders.
From the Y Combinator listing
AI Platform for Precision Outbound
Hey YC! We're Devi and Jianna - the founders of Cardinal. TL;DR: Cardinal is the AI platform for precision outbound. We run outbound for 40+ YC companies, like Mintlify, Greptile, and Luminai. The Problem “Spray and Pray” outbound is dead. The best teams at outbound do it with extreme precision. Finding things in common with your customers, staying in touch with them through their content, mapping inbound from signups and ads, tracking website visitors, monitoring various signals, etc. This sounds great in theory, but in reality involves stringing together 10+ tools and hiring a GTM engineer. That’s where Cardinal comes in. Cardinal is an AI platform for precision outbound. Our agents can create workflows that normally require the work of fulltime GTM engineers. If you're a founder or sales leader looking to bring AI into your sales org, would love to chat!
Facts
- B2B / B2B
- San Francisco, CA, USA
- Active
- Early
Founders (2)
- Devi Jha
- Jianna Liu
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