# Coldreach

> Coldreach is a Y Combinator-backed (W23) AI sales development platform that helps B2B teams find companies that are ready to buy right now. Instead of blasting cold emails to random lists, teams describe what a buying signal looks like for their product in plain language, and Coldreach monitors 113M+ companies across job postings, news, LinkedIn activity, SEC filings, hiring changes and more, 24/7. When a match fires, the AI researches the account and writes personalized outreach that references the specific event - which the company says produces meaningfully higher reply and booking rates than spray-and-pray outbound.

- **Founded:** 2023
- **Headquarters:** San Francisco, United States
- **Founders:** Xiaohan Shen (Co-Founder & CEO), Hankel Bao (Co-Founder & CTO)
- **Team size:** 3
- **Products:** Signal Monitoring, AI Research & Sequencing, Lead List Building, Auto-Pilot Outreach & Deliverability
- **Notable:** Accepted into Y Combinator's Winter 2023 batch, #1 Product of the Day on Product Hunt (August 19, 2024), #3 Product of the Week on Product Hunt

## Products & services

- **Signal Monitoring** — Monitors 113M+ companies across 5+ data sources (job postings, company news, website content, LinkedIn activity, employee changes, SEC/10-K filings) 24/7, surfacing only accounts that match buying signals the user defines in plain language.
- **AI Research & Sequencing** — Once a lead matches a signal, Coldreach reads the company's website, filings, hiring pages and recent news, then drafts personalized outreach that references the specific triggering event while maintaining the customer's brand voice.
- **Lead List Building** — Builds and refreshes targeted, ranked lead lists in minutes, vetting each lead across multiple data sources, with weekly exports and refreshes.
- **Auto-Pilot Outreach & Deliverability** — Runs autonomous outreach 24/7 with built-in deliverability infrastructure - aged domains, DNS setup, warm-up pools, dedicated IPs and mailbox rotation - and syncs to CRMs and sales engagement tools.

## Achievements

- Accepted into Y Combinator's Winter 2023 batch
- #1 Product of the Day on Product Hunt (August 19, 2024)
- #3 Product of the Week on Product Hunt
- Cited 40+ sales teams booking more meetings with decision makers
- Reports a 3.8% average reply rate across 500,000+ emails by referencing verified buying signals

## Latest updates

- **2024-08** — Launched on Product Hunt as 'Find ready-to-buy leads + Sound relevant with AI,' earning #1 Product of the Day.
- **2023-04** — Raised $500K and completed the Y Combinator W23 batch.

## Links

- Website: https://coldreach.ai
- LinkedIn: https://www.linkedin.com/company/coldreach
- Twitter/X: https://twitter.com/coldreach_ai

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Profile page: https://yespress.io/coldreach-yc-w23
Published by YesPress — https://yespress.io
Last updated: 2026-07-31