When sending in checks to be deposited into your Columbus funds - BE SURE TO USE OSU Extension Deposit Transmittal Form AND BE SURE TO SEND TO: Dawnn Brown IN ROOM 3 - NOT the Service Center in Room 4- they do NOT handle our deposits. The full address is on the EXTENSION form. For Development Funds, send to this address (also on the extension deposit transmittal form): The Ohio State University Foundation, PO Box 710811, Columbus, OH 43271-0811.