← The GTM Stack
Data Enrichment★ Our PickUsed daily

Clay

Signal sourcing + enrichment command centre

What it does

Clay is a no-code data enrichment and lead list building platform. You connect signal sources — LinkedIn, job boards, funding databases, your own scrapers — and Clay enriches, scores, and formats the output into a campaign-ready list. It's not a sending tool. It's the intelligence layer that makes your outreach precise instead of generic.

We use it to build every ICP lead list before campaigns launch. The waterfall enrichment feature — which tries Apollo, then Clearbit, then Hunter in sequence — is the fastest way to get verified emails at scale without paying for three separate subscriptions.

Practitioner verdict

The command centre of our entire stack. We run every client campaign through Clay before a single email is sent. The waterfall enrichment alone justifies the subscription — it combines 50+ providers in one workflow at a fraction of the cost. If you're doing signal-based outbound without Clay, you're either running five separate tools or sending to lists every competitor has already burned.

Where it sits in our stack

Clay sits in the middle of everything — between signal sources and sending platforms. Here's the exact flow for every client campaign:

ApifyCustom scrapers monitor buying signals and pipe raw prospect data into Clay
ClayEnriches, scores, and formats leads — waterfall email lookup, AI columns, ICP filtering
SmartleadReceives the cleaned, enriched list and runs the sending sequences
PricingFrom $149/mo
Free trialAvailable
Pros
Waterfall enrichment — nothing combines this many providers
AI columns make per-row personalisation practical
Native Apify integration for custom signals
Credit model gives precise cost control
Cons
Real learning curve — 2–3 weeks minimum
Credits disappear without column limits set
Not a sending tool — needs Smartlead on top
Cost scales with volume

Alternatives

Apollo.io
Good starting point. Data is shared with every competitor. Use as one layer inside Clay, not standalone. Fine for month 1.
Visit ↗
Zoominfo
Expensive for what it delivers at SMB scale. Same data available through Clay's waterfall for less. We don't recommend it.
Clearbit
Strong enrichment. Better used as a waterfall step inside Clay than as a standalone. Clean data, good API.