Tool

Clay

Clay Labs, Inc. · Clay Freemium Intermediate

Clay is the tool most outbound teams reach for when they want research-driven personalization instead of name placeholders. It pulls signals from a large set of sources (LinkedIn, funding news, job changes, company pages) and uses AI research agents to draft opening lines inside a spreadsheet, so you review and edit rather than write each from scratch. It has a free tier to test the workflow before you commit, which is the right way to start.

  • It enriches each prospect from many data sources, so your opener can reference a real, current signal rather than a merged first name.
  • AI research agents draft the first line; you stay in the loop to edit for tone and accuracy, which is what keeps it from sounding fake.
  • Start small on the free tier and grade your first batch by hand before scaling the volume.
Open on clay.com ↗

The question it answers

  1. How do I personalize cold emails at scale without making them feel fake?

Read with it

  1. A tactical follow-on covering the channels and motions top B2B startups scale after the first ten. Grounds distribution... Lenny's Newsletter Article · ~15 min read How to win your first 10 B2B customers Lenny Rachitsky
  2. This is the rare cold email guide that gives you a concrete structure instead of vague advice about being personal. It walks... Clay Article · ~20 min read B2B Cold Email Copywriting: The Complete Guide Mishti Sharma
  3. This is the canonical structure for the investor cold email, written by a YC partner who reads them from the other side. It is... Y Combinator Startup Library Essay · 5 min read How to Cold Email Investors Aaron Harris
  4. An Indian founder story where the early demand test was manual, cold emails and direct outreach to find the first customers... Prime Venture Partners Podcast Podcast · ~50 min How Khadim Batti Built Whatfix Into a Global SaaS Leader Prime Venture Partners
  5. Once you have a list of people to reach cold, this shows you how to write emails they actually answer. Seven concrete... Y Combinator Startup Library Video · ~33 min How to Convert Customers With Cold Emails Aaron Epstein
  6. A short, honest essay arguing that cold outbound is both a strong demand signal and a skill you will need anyway. It counters... Pascal Unger (pascalsnotes.substack.com) Essay · ~10 min read Cold Outbound is Under-Appreciated Pascal Unger
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