Hi Kunal.
What kind of businesses? If you're looking to target call centres within businesses, the best place to start would be the call centre database. On the other hand, if you've got a particular kind of business in mind and you're not looking for their call centre departments, Yell would be a good place to start.
Hope this helps. If not, if you could give us more information about what you want to do with the list, we might be better able to help.
John |