i can provide you as many details of B2B, B2C leads. for 1000 Contacts Database (with email id's and person's contact number or office number). which can be used for cold calling, telemarketing etc. this leads will help in the business development if you follow up with them. If you need any kind of Lead generation database contact me soon.
What the Seller needs to start the work
if u specify the sector to generate leads or research topics and specify time i can generate and give proven results in time. so hurry.i am attaching a sample. check it out if you need more contact me ASAP.