Which car rentals can you use to pick-up cars at one place and drop off cars at a different state?

Im planning on going on a vacation with a rental car starting at Chicago,IL and driving south to Atlanta, georgia and returning the car there is there any rental companies who can pick up in chicago and returning the car at atlanta?Which car rentals can you use to pick-up cars at one place and drop off cars at a different state?
I used Avis and there was no drop charge. I picked the car up in Seattle and dropped it off two weeks later in Portland. Unlimited milage. Whatever agency you decide on, make sure there is no drop charges because you are not returning to the same location.Which car rentals can you use to pick-up cars at one place and drop off cars at a different state?
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