Waterfall enrichment across 25+ providers.
Every lead runs through them in order until a work email verifies.
An animation of waterfall enrichment. A contact falls through the providers one at a time. Providers that return nothing, or an address that is only risky, invalid or unknown, are passed over. The first provider to return a verified or likely valid work email stops the waterfall and fills the contact's email, for one credit. The providers below it are never called.
Omni
10,000+ users, from founders to full sales teams
- Switched from
ZoomInfo - Case study
HackerOneSwitched from
Apollo- Switched from
Clay - Case study
Sumo LogicSwitched fromClay- Switched fromApollo
- Case study
- Switched fromZoomInfo
- Switched fromZoomInfo
G2
Chrome Web Store
AppSumo
98% verified work emails. 85% phone numbers.
Cleanlist AI's 500-lead benchmark, against single providers on the same list.
On the 500-lead benchmark, the waterfall returned a verified work email for 98% of leads, against 70 to 80% for one provider alone, and a phone number for 85%, against 30 to 60% for one provider alone.
How this was measured
One 500-lead stratified list, run once through the full waterfall and once through single providers. 98% of leads got a verified work email and 85% a phone number, measured separately. The single-source ranges are what individual providers returned on the same list. Read the full benchmark.
“Cleanlist AI gives us the highest accuracy data in our entire waterfall. Pickup rates went from 8% to 13%.”
Hayk GhonGTM Lead @ WarpRead the Warp story Every email checked before it counts.
Only Verified or Likely valid ends the search. The rest go to the next provider.
Check emails you already haveSix leads run through the work-email waterfall side by side, one attempt at a time. Some attempts return no email, and some return an address marked Risky, Invalid or Unknown; each sends the search on to the next provider. The first Verified or Likely valid address stops that lead's waterfall and is billed one credit, and no provider after it is asked.
Sanity
Radar
Distyl
Decagon
Gamma500 rows in. 487 verified emails out.
Drop in a CSV or a list from HubSpot or Salesforce and enrich every row at once.
The lead list “Series B sales leaders” enriching in Cleanlist AI. Row by row, the Primary Email and Phone cells check one data provider at a time, counting the attempts out of 25, until one returns a result: a verified email, then a phone number. The Status column shows Verified or Likely valid. Two rows check all 25 attempts and come back with no phone found. A footer counts the run from 120 to 500 of 500 contacts, then shows the result: 487 verified emails and 412 phone numbers.
WellSaidOne charge per result.
However many providers it takes, the whole team spends from one shared balance.
See plans and creditsA run history beside the Actions drawer's Enrich prices: Find Email 1, Find Phone 10, Email Validation 0.5. Seven lookups resolve: verified emails bill 1, a phone number 10, an email and phone together 11, a validation 0.5, and two lookups that found nothing bill 0 although every provider was tried. In total 65 provider calls are made and 23.5 credits are billed.
One waterfall, four ways to run it.
Clu, agents, the Chrome extension and the API ask the same 25+ providers at the same price.
Put it on a schedule.
An agent enriches new ICP matches every Monday and syncs them to your CRM.
Build an agentReveal one contact.
Run the waterfall on any LinkedIn profile with the Chrome extension.
Get the Chrome extensionCall it from code.
One API call enriches a whole list, and Claude runs it through MCP.
See the API and MCP
Cleanlist
Claude Lands in your CRM.
Syncs with HubSpot and Salesforce, and pushes to Salesloft and Lemlist.
Questions about waterfall enrichment
Read the full benchmarkWhat is waterfall enrichment?
Waterfall enrichment asks several data providers for the same contact, one after another, and stops at the first deliverable result. Cleanlist AI runs 25+ providers per lead and charges once per result, however many providers ran.
How accurate is it?
On Cleanlist AI's 500-lead stratified benchmark, 98% of leads got a verified work email and 85% a phone number. Single providers returned 70-80% and 30-60% on the same list.
What if no provider finds anything?
You pay 0. Credits are spent only on a verified or likely-valid email (1 credit) or a phone number found (10).
Where does the enriched data land?
In your CRM or sequencer. Cleanlist AI syncs with HubSpot and Salesforce, pushes to Salesloft and Lemlist, and exports to CSV.
Run your oldest list through 25+ providers.
Upload it and get verified emails and phone numbers back.
14 days of Pro, free.