How can you contact a furniture brand international store to order a couch to match the furniture that you bought several years ago of this same brand?
My guess would be a company called "American Drew". They always had a Oak tree emblem on the side of their pieces when I sold the line a few years ago.
Most likely there is a furniture store in your local area that specializes in wood furniture. In order to find one you can look in the yellow pages of your phone book or on the internet.