Apollo vs Clay
B2B prospecting database for outbound
Overview
Apollo is a B2B contact database with built-in sequences. Clay is an AI-powered enrichment and list-building platform. They're often described as competitors but they actually solve different problems. Many B2B teams use both.
Head-to-head
Side-by-side breakdown
| Dimension | Apollo | Clay |
|---|---|---|
| Primary use | Contact database + email sequences | AI-powered enrichment + custom lists |
| Contact coverage | ~280M contacts | Pulls from 50+ sources (Apollo, ZoomInfo, etc.) |
| Email finder | Built-in waterfall | Built-in waterfall (often better hit rate) |
| Sequencing | Native sequences + tracking | No native sequencing |
| Custom enrichment | Limited (basic firmographic) | Deep, any field via AI prompts |
| Pricing tier | $50-150/user/mo | $150-800+/user/mo |
| Best for | Volume outbound on standard ICP | Hyper-targeted lists with custom signals |
Decision guide
When each option wins
Pick Apollo when
You're running outbound at volume against a clearly defined ICP, you need a single tool for sourcing + sequencing, and your enrichment needs are firmographic (industry, size, location) rather than custom signals.
Pick Clay when
Your ICP requires custom signals (uses specific tech, recently raised, hiring particular roles), you need to build niche lists Apollo can't generate, or you're combining 5+ data sources programmatically.
Our take
Verdict
Use Apollo for the bulk contact database and sequences. Use Clay for the enrichment layer that makes sequences personalized, pulling tech stack, headcount changes, intent signals, and AI-generated openers. Run them together via webhook for the strongest outbound stack.
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Not sure which way to go?
Run this decision against your specific stack on a strategy call. We will tell you which option fits, including when it is neither.
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