Email campaign

I’m looking for the most reliable opt-in email service in U.S.
It should have a good mailing list, not too old, and categolized so my comany’s newsletter wouldn’t reach to the irrelevant group of people.

There is a type of service that provides newsletters on giveaway campaingns in exchange for personal information in Japan. (The user can choose the category, and receive the certain type of giveaway compaign info.)
Is there the same type of service in U.S.??
Japanese opt-in email service companies usually states how many members they have, when they send your newsletter email to them, how much it costs per email, how many emails can be sent at once, and the segment of members that your emails reach.
I wonder if the american opt-in email service works in a same way.
When I look at them, they usually don’t provide the above information on their website, but provide the free trial.