Duplicate Elimination

Advanced contact data matching algorithms identify duplicates on your file.

Cleanlist's Duplicate Elimination service uses advanced "fuzzy" name and address matching algorithms to identify duplicates in your database.

You choose whether to suppress only multiple instances of the same individual (called “Individual Level” match), or different individuals at the same household address (called “Household Level” match), to help reduce wasteful direct marketing efforts. In this way, marketers can avoid aggravating customers with unwanted, repeat communications while ensuring that intended recipients are not overlooked.

When you order this service, you receive a result file with the duplicates flagged for suppression.

An included summary report provides statistical data describing your results.


  1. Increase marketing campaign ROI by not duplicating contacts.
  2. Save costs associated with printing and mailing duplicate contacts.
  3. Increased accuracy of data analysis.
  4. Reduce environmental and financial costs associated with duplicated mail.
  5. Avoid aggravating customers with unwanted repeat mailings.

Service Channels


Match Rates

2 - 20% Range.

Match Rate Factors:

  • List quality (accuracy, completeness and format)
  • List type (profile, function, demographics)

Related Products

Fields Appended

Field Name

Duplicate Flag:

  • X = Duplicate
  • - = No Match/Non-Duplicate
Duplicate ID:
This column contains the duplicate set ID. All records in a duplicate set have the same ID number.

For advice, estimates, or to place an order,

call us at 1-800-454-0223 or email sales@cleanlist.ca