 3,313 people are employed in the tertiary sector, with 426 businesses in this sector.The village of Altstätten as well as a concentration of castles, which is known as the "Schlosslandschaft Ober/Unterrheintal" and spans Altstätten, Balgach, Berneck and Marbach, is designated as part of the Inventory of Swiss Heritage Sites.In the 1970s, Altstätten's football club, FC Altstätten founded in 1945, was at national league B level, and played in the premiership.