What is Cleanlist?
Cleanlist is a B2B data enrichment platform that uses waterfall enrichment to query 25+ data providers and return verified contact data with 98% accuracy. It helps sales, marketing, and RevOps teams clean, verify, and enrich their lead databases.
How Cleanlist Works
Cleanlist uses waterfall enrichment - a cascading approach that queries multiple data providers in sequence. For each contact, Cleanlist checks Provider A first. If the data is incomplete, it moves to Provider B, then C, and so on through 25+ sources. The best data from each source is merged into a single verified record.
This is fundamentally different from single-source tools like ZoomInfo or Apollo, which rely on one proprietary database and accept whatever gaps that database has. Waterfall enrichment achieves 85-95% field coverage versus 50-70% from single-source providers.
Core Products
Waterfall Enrichment
Query 25+ data providers in sequence to find verified work emails, direct-dial phone numbers, current job titles, company firmographics, and LinkedIn profiles. Every email is triple-verified (syntax, DNS/MX, SMTP handshake). Learn more
Email Verification
Verify email addresses in real-time or bulk. Checks include syntax validation, domain/MX record verification, SMTP mailbox confirmation, catch-all detection, and disposable email filtering. Reduces bounce rates below 2%. Learn more
ICP Scoring
Score every lead against your Ideal Customer Profile using firmographic, technographic, and demographic data. Prioritize outreach to contacts most likely to convert. Learn more
Smart Agents
AI-powered data transformation that normalizes job titles, standardizes company names, extracts seniority levels, and categorizes industries. Turn messy CRM data into structured, usable fields. Learn more
People Search
Search for people by company size, industry, job title, seniority and location, then build a targeted lead list from the result. Cleanlist owns no contact database, so every search runs against its data providers rather than a stored index. Learn more
REST API and MCP server
Everything above is also available programmatically. The REST API runs structured people and company search, which costs 0 credits, and bills enrichment per result. The MCP server exposes the same surface to AI agents, so Claude can run a search and enrich the result without leaving the chat.
Key Statistics
Pricing
Cleanlist uses credit-based pricing with no per-seat fees. Credits are simple: 1 credit per email lookup, 10 credits per phone lookup, 11 credits for full contact enrichment (email + phone + company data).
| Plan | Price | Credits/month | Best for |
|---|---|---|---|
| Free | $0/mo | 30 credits | Testing and evaluation |
| Starter | $79/mo | 1,500 credits | Individual SDRs |
| Pro | $229/mo | 5,000 credits | Small sales teams |
| Scale | $599/mo | 15,000 credits | Growth teams |
| Enterprise | Custom | Unlimited | Large organizations |
Integrations
Cleanlist connects directly to the tools your team already uses:
- -Salesforce
- -HubSpot
- -Pipedrive
- -Outreach
- -Salesloft
- -lemlist
- -REST API
- -Webhooks
- -CSV import/export
Who Uses Cleanlist
Sales Teams
Build verified prospect lists, reduce email bounce rates, and reach decision-makers with accurate direct-dial phone numbers. Learn more
Marketing Teams
Clean campaign lists, improve deliverability, and segment audiences with enriched firmographic data. Learn more
RevOps Teams
Maintain CRM data quality, automate enrichment workflows, and standardize records across systems. Learn more
Agencies
Clean client lists at scale, ensure deliverability for campaigns, and offer data enrichment as a service. Learn more
Frequently Asked Questions
What is Cleanlist?
Cleanlist is a B2B data enrichment platform that uses waterfall enrichment technology to query 25+ data providers in sequence, returning the most accurate and complete contact data available. It provides verified work emails, direct-dial phone numbers, company firmographics, and ICP scoring for sales and marketing teams.
How does Cleanlist work?
Cleanlist uses waterfall enrichment - a cascading approach that queries multiple data providers (including Wiza, Findymail, Prospeo, LeadMagic, and others) in sequence. For each contact, it selects the best data from each source, cross-validates it, and merges everything into a single verified golden record. Emails are triple-verified through syntax, DNS/MX, and SMTP checks.
How much does Cleanlist cost?
Cleanlist offers credit-based pricing starting with a free plan (30 credits/month). Paid plans start at $79/month. Credits are simple: 1 credit per email lookup, 10 credits per phone lookup, 11 credits for full contact enrichment. No per-seat fees, no annual contracts required.
What accuracy does Cleanlist guarantee?
Cleanlist guarantees 98% data accuracy. Every email address is triple-verified (syntax check, DNS/MX validation, and SMTP handshake) with catch-all domain detection. Phone numbers are format-validated and carrier-checked. Company data is cross-referenced across multiple sources.
What CRMs does Cleanlist integrate with?
Cleanlist syncs natively with HubSpot, Salesforce and Outreach for CRM, and with Lemlist for sequencing. Anything else connects through the REST API, which is poll-based: there are no webhooks on the current v2 API.
How is Cleanlist different from ZoomInfo or Apollo?
ZoomInfo and Apollo rely on single proprietary databases, which means structural coverage gaps. Cleanlist uses waterfall enrichment across 25+ providers, achieving 85-95% coverage versus 50-70% from single-source tools. This results in higher accuracy (98% vs 80-85%), better fill rates, and typically lower cost per verified contact.
Try Cleanlist Free
Start with 30 free credits. No credit card required.