Sauter, established in 1819 is the oldest, continuously operating, family run piano factory in the world. Imagine that in 3 short years, they will be celebrating their 200th anniversary! In a nutshell, Sauter's uncle (in 1819) was Johann Grimm, an apprentice for Streicher ~ maker of pianos for both Beethoven and Mozart. They have been building pianos in the town of Spaichingen since then. Take the tour of the piano factory here: http://pianopricepoint.com/sauter-piano-factory-tour/
It's a must see!