Cleanlist uses waterfall enrichment, which means it cascades through multiple data providers in sequence until verified contact information is found.
What makes it different
Most enrichment tools rely on a single data source. If that source does not have the data, you get nothing. Cleanlist chains 15+ providers together in a 15-step waterfall, querying each one in order until a match is found. This delivers 2-3x higher match rates compared to using any single provider alone.
The provider cascade
Email finding
For email enrichment, Cleanlist sequences through multiple specialized providers including Hunter.io, FindyMail, LeadMagic, Datagma, IcyPeas, Prospeo, AnyMailFinder and others. The order is:
Cache check - Instant lookup from recently enriched leads in your workspace (within the past 60 days). This speeds up results but still counts as a successful enrichment.
Provider cascade - Each provider uses different data sources and methodologies. If one does not find a result, the next is tried automatically until a verified match is found or all providers are exhausted.
Email verification
Every email found goes through independent verification using services like ZeroBounce and Emailable before being delivered to you:
RFC 5322 format compliance
Domain and MX record validation
Disposable email detection
Catch-all domain identification
Deliverability scoring (reliable, risky, or unknown)
Phone finding
For phone enrichment, the system queries providers like Wiza, ProxyCurl and others for direct and mobile phone numbers. Results include line type classification (mobile, landline, VoIP) and are formatted to E.164 international standard.
Enrichment types and costs
Type | What you get | Credit cost |
Email only (partial) | Verified work email with deliverability status (reliable, risky, or unknown) | 1 credit per lead |
Phone only | Direct/mobile phone number with line type | 10 credits per lead |
Full enrichment | Email + phone + LinkedIn profile data + company information | 11 credits per lead |
You only pay for results
You are charged once per successful enrichment, regardless of how many providers were queried. If no email or phone is found, zero credits are deducted. The system automatically selects the optimal provider sequence, tuned continuously based on success rates across millions of lookups.
What input data do you need?
For the best results, provide as much data as possible:
LinkedIn URL - Gives the highest match rate
First name + last name + company domain or company name - Good match rate
Email address - Can be used for reverse lookup to find phone numbers
At minimum, each contact requires either a LinkedIn URL or a first name + last name + company.