Match/Lookup Data Another Worksheet

I am wanting to do is have the values from a number of cells on sheet2 returned to sheet1. The catch for me is that I am using the validation command on sheet1. When I select an item in the validation field I want to return data that belongs with that selection. It may be best with an example....

On sheet2 I have a list of companies in Col.A, their street address in Col.B & their phone number in Col.C.
On sheet1 I have a Validation field that lets me select from the list of companies...
When a Company is selected I want to have the address data & phone numbers returned and placed in the cells beside the Validation box.