Enrich Your Prospect List with Verified Data
Enrich Your Prospect List: upload a CSV or connect your CRM, and Cleanlist AI checks each row against 25+ providers in sequence. Every new workspace opens on Pro for 14 days with 250 credits, 3 seats.
A Cleanlist AI list called Series B sales leaders enriched through the waterfall: 6 verified work emails and 4 phone numbers found for 6 leads, 46 credits in total. Rows with no phone number found cost nothing for that field.
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How does Cleanlist AI enrich your prospect list with verified data?
Cleanlist AI transforms raw prospect lists into outreach-ready databases by running waterfall enrichment across 25+ data providers. Upload the list as a CSV and Cleanlist AI adds verified emails, phone numbers, job titles and company details. Each email is verified live, each phone number is checked for an active line, and duplicate prospects are merged. You get one clean list, ready for your outreach tool.
Why this is hard to do by hand
Most B2B teams build a prospect list from one source (a Sales Navigator export, a bought list, a spreadsheet) and start sending without enriching or verifying it. SalesHacker's 2025 Outbound Benchmarks found single-source lists average 62% email accuracy and 34% phone coverage. So about 4 in 10 emails bounce or land in spam, and two thirds of the contacts have no phone number for the follow-up call. The sequence looks complete and reaches fewer than half the people on it.
Single-source prospect lists miss 38% of valid contacts
No single B2B data provider covers every company, title and region, and the gaps cluster by company size, geography and industry. SalesHacker's 2025 Outbound Benchmarks put single-source email accuracy at 62%, which leaves 38% of a typical list unreachable by email. A waterfall covers more because it asks the next provider when the first one misses. Cleanlist AI runs 25+ providers in sequence and stops at the first deliverable result. On our 500-lead benchmark, that returned 98% verified work emails and 85% phone numbers.
What a lookup costs
Each lookup walks 25+ providers in cost order, and you're charged once for what comes back: 1 credit for a verified work email, 10 for a phone number, 11 for both. Validation is 0.5 and AI qualification is 5. A lookup that finds nothing is free, and the whole team pays from one wallet.
- Verified work emails25 leads searched23 × 123
- Phone numbersVerified before anyone calls18 × 10180
- Qualification agentFit score with reasons25 × 5125
- 25+Providers queried in cost order on a single lookup
- 98%Verified work emails on our 500-lead benchmark
- 85%Phone numbers found on that same benchmark
- 0Credits for a lookup that finds nothing
How it works.
- 01
Upload your prospect list
Upload a CSV with whatever you have: company names, domains, contact names or partial rows. Cleanlist AI maps the columns and shows which fields it can fill.
- 02
Pick the fields to add
Choose what to add: verified email, phone number, job title, company size, industry, LinkedIn URL and more. An email costs 1 credit and a phone number 10.
- 03
Run the waterfall
Cleanlist AI asks 25+ providers in sequence for each record. If the first has no email, the next one tries, and the chain stops at the first deliverable result. Risky or unknown results keep it looking and cost nothing.
- 04
Review match rates and statuses
See the match rate for each field. Every email carries a verification status, so you decide what goes into the sequence.
- 05
Remove duplicates
Fuzzy matching finds the same prospect across name, email and company variations and merges them into one record with the most complete data.
- 06
Export or push to your outreach tool
Download a CSV, or push the list to Salesloft, HubSpot or Salesforce. Each record carries the date it was enriched.
What you get.
98% verified work emails
That's on our 500-lead benchmark. Cleanlist AI checks each email and flags catch-all and disposable addresses before you send.
25+ data providers
Cleanlist AI asks them one at a time and stops at the first deliverable result. When one provider has nothing, the next one gets its turn.
No code required
Upload a CSV or connect your CRM. If your engineers want it, the API is there from the Pro plan.
14-day Pro trial
250 credits and 3 seats on Pro for 14 days. You don't need a card or a sales call to start.
Manual process vs Cleanlist AI.
| Feature | Manual | Cleanlist AI |
|---|---|---|
| Email match rate | 62% from single-source list | 98% verified work emails on our 500-lead benchmark |
| Phone number coverage | 34% (if included at all) | 85% on our 500-lead benchmark, direct lines prioritized |
| Firmographic data included | Rarely (requires separate research) | Company size and industry |
| Duplicate detection | Manual spreadsheet comparison | Automatic fuzzy matching |
| Time to enrich 5,000 prospects | 25-50 hours of manual research | One CSV, one batch |
| Cost per enriched record | $1-5 (manual research time) | 1 credit per verified email, 0 for a miss |
How accurate is Cleanlist AI's data?
Cleanlist AI returned 98% verified work emails and 85% phone numbers on our 500-lead benchmark, pulling from 25+ data providers. Each lookup stops at the first deliverable result, meaning a verified or likely-valid email.
What do I get when I sign up?
A 14-day Pro trial: 250 credits, 3 seats, and every Pro feature. After it, the Free plan gives you 50 credits a month. A verified work email costs 1 credit, a phone number 10, and a miss nothing.
What data providers does Cleanlist AI use?
Cleanlist AI runs a waterfall across 25+ B2B data providers. For each record it asks one, moves to the next when that one has no match, and stops at the first deliverable result.
Can I connect my CRM?
Yes. HubSpot and Salesforce sync both ways on the Pro and Enterprise plans, and Salesloft and Lemlist take a one-way push. You can also upload a CSV, or use the REST API from Pro.
How long does it take to enrich my data?
It depends on the size of the file and how far down the waterfall each row has to go. Cleanlist AI runs the whole CSV as one job, so you upload once and download or sync the results when it's done.
What data points can Cleanlist AI add to my prospect list?
Verified email, office and mobile phone numbers, job title, company name, company domain, employee count, industry, LinkedIn URL and location. Each field comes from the waterfall across 25+ providers.
How accurate is the enrichment?
98% verified work emails and 85% phone numbers, on our 500-lead benchmark. Every email is SMTP-checked when it's found. Coverage is weaker on very small companies and in markets where fewer of the 25+ providers operate.
Can I enrich a prospect list with only company names?
Yes. Upload company names or domains, and Cleanlist AI finds the people at each company who match the titles you set, then enriches them. Filter by job title, seniority or department to reach the right decision-makers.
Describe the job once. An agent runs it every week.
Clu turns one sentence into an agent. It searches 1B+ profiles, finds verified emails and phone numbers across 25+ providers, adds the people to your sequence and posts each run to Slack.
Weekly ICP outbound
Built by Clu from: “Every week, find 500 new people who match my ICP, get their emails and phones, and add them to Series B outbound.”
- Searched 1B+ profiles for new ICP matches500 foundPeople Search
- Ran the waterfall across 25+ providers487 emails · 412 phonesWaterfall
- Verified every email and phoneSMTP + catch-allVerification
- Added them to Series B outbound500 peopleSequences
- Posted the run to #pipelineSlackAgents
Friday 4:52 PM15 replies · 5 calls booked
Everything in the 14-day Pro trial
- Clu and agentsDescribe the job in one sentence. Clu builds the agent, runs it on a schedule or a CRM trigger and posts every run to Slack.
- People and Company SearchFind your buyers in 1B+ profiles from one sentence. Searching costs 0 credits.
- Waterfall enrichmentAsk 25+ providers in order and stop at the first verified email or phone number. 98% verified work emails and 85% phone numbers on a 500-lead benchmark.
- Email verificationRun SMTP and catch-all checks on every address before it reaches a sequence, at half a credit an email.
- ICP scoringScore every lead 0 to 100 against your ICP, with the reasons written down. The Research and Qualification skills do the digging.
- SequencesSend email from your reps' own inboxes, with call tasks. A reply stops the sequence. Sending costs 0 credits.
- CRM syncTwo-way sync with HubSpot, Salesforce and Pipedrive. Push finished lists to Outreach, Salesloft and Lemlist.
- Chrome extensionGet a verified email and phone number in one click on LinkedIn, Sales Navigator, Salesforce and HubSpot.
- MCP and APIRun the same search and waterfall from Claude or ChatGPT with 36 MCP tools, or from your own code with the REST API.
14 days of Pro, free: 250 credits, 3 seats, agents, Sequences and Clu in Slack. Then Free at 50 credits a month, or Starter at $49 and Pro at $89 a seat a month.
Hand the job to an agent.
Upload a CSV or connect HubSpot, Salesforce or Pipedrive, and run it on your own data today.
14 days of Pro, free.
Get 14 days of Pro, free.
250 credits and 3 seats. Sign up with your work email for 100 more.