Keep existing customers out of every list
Upload the companies and contacts you already have. Matching leads and companies are left out of captures, people searches, email finding, scoring and exports.
No credits · on every planHow it works
Upload a file
Values are read
Switch it on
Matches are skipped
What counts as a match.
Values are matched the way they appear in real data: subdomains, other country domains, legal forms in names.
An email excludes its company domain too, unless it’s a free mail address like gmail.com.
Private to you.
A client’s customer list can be confidential. Values are stored encrypted, with a keyed hash to match on, and only you can see your lists.
- Never used for anyone else’s searches
- Never written to a shared cache
- Delete a list and its values at any time
Exclusion lists are free.
On every plan.
Uploading, matching and checking cost nothing. Excluded leads are skipped by email finding and scoring, so no credits go on them there either.
What to do next
Capture without your customers
Find emails only for new leads
Score and export only new leads
Leads saved from Claude skip your exclusion lists too. Upload a list, switch it on or off and check a value by API: MCP server · API
CSV, TXT and Excel (XLSX, XLSM), up to 200 MB. Every sheet is read.
Upload your customer list.
Everything you capture after that leaves them out.