At AffordableMarketingLists.com out lists generally run 95%-97% accurate, but we guarantee that we will replace every non-working phone number. This may seem like a small thing, but that’s how strongly we back the quality of our lists.
We offer the same guarantee on our mailing lists. We will replace 100% of all mail that comes back as undeliverable. Before we send out any mailing list we scrub it against the National Change of Address registry to make sure that is as accurate as possible.
As of 3/22/2012 we are the only company we are aware of that offers this guarantee publicly and in writing, including SalesGenie.com owned by InfoGroup which is the largest provider of leads in the country.