De-duping Information Jigsaw 
The Point
DECEMBER 16, 2011
Renting a list, as the term implies, means 1) you only get to use the emails once, and therefore only acquire contact information if the prospects actually respond to your message, and 2) you never actually see the list. List rental is the traditional (and some might say: outdated) way of acquiring marketing lists.
markempa
MARCH 30, 2007
You will most certainly need their expertise in massaging and de-duping the data. These lists include all of the demographic data typically needed, and have extended contact information. Usually, I have found that the best company level data lists come from data companies like Dun & Bradstreet or InfoUSA.
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