Workflow
Combine and verify B2B service provider lists
When contacts come from several directories, merge first, deduplicate, then verify one file. You pay for each address once and keep the source column for later analysis.
Example
A sample file (fictional data)
| company | sources | |
|---|---|---|
| Northwind Studio | ana@northwind.example.test | clutch;sortlist |
| Quill & Co | raj@quill.example.test | goodfirms |
| Brightside Digital | info@brightside.example.test | designrush;upcity |
The sources column joins every place an address appeared; it survives into the results export.
Merge and deduplicate
Put every list into one table, lowercase the addresses, and remove duplicates. The free email deduplicator does this in your browser; join the source names for duplicates before dropping them.
Verify once, compare later
Upload the merged file and download results with the original columns. Splitting the sources column afterwards shows which directories produced the most invalid or role results.
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