Sunflowers Interactive Entertainment Software is a German company that develops and publishes video games. It is in Heusenstamm, Germany. It was founded in 1993 by Adi Boiko and Wilhelm Hamrozi. Boiko is now president of the company and Hamrozi is chief executive officer (CEO). The company is known for the Anno series (also by Max Design), Knights of Honor (by Black Sea Studios) and ParaWorld (by SEK).