A note from GetListed.org Co-Founder David Mihm:
Even if you've already claimed your listing and verified your business information at the major local search engines, data from Localeze will reinforce the information you've already given the major search engines & possibly improve your rankings.

More Information about the Local Search Ecosystem

Google, Yahoo, and Bing--in addition to maintaining their own business databases--pull in business information from a variety of other sources. All three local search engines do the best they can to match the data that comes in from these other sources with what they have in their own index, but sometimes that doesn't happen properly. If the information is different enough, they might think it's a different business, or they might even feel that the wrong information appears SO many times in the other places that they get their data from, that it might actually be "right." Localeze is one of the three primary sources of data for all the major search engines, sending "fresh" feeds to the search engines every couple of months. So if your business information is incorrect at Localeze, it may override what the Local Search Engines have in their own index.