All Sebo models, most Miele models, although there are a couple of S2's made in China. Also the new Miele robotic vacuum, I don't believe that is made in China.
The Miele vacuums which are made in Germany are near 100% made in Germany. Miele make the bodys, motors and circuit boards in house, they even design the packaging to make sure it can withstand knocks and bangs in transit.
Sebo vacuums are again design and manufactured in Germany. I don't know of a Sebo which isn't. That the difference between a public and private company, no shareholders to constantly please, no need to cut corners are viciously (cough, Dyson cough). Sebo's motors I think are not made by SEBO but are made by other German companies. For example I think I am right in saying the updated Felix released in 2011 had a Bosch motor, versus an Amtek. Correct me anyone if I am wrong.
Up until recently, a vast majority of Bosch vacuums were also made in Germany. Indeed SEBO, Miele and Bosch all had "Made in Germany" proudly stamped on the top of the body. SEBO's have this plastered everywhere on their vacuums, including the power nozzles. However, a few recent Bosch vacuums have been made overseas, including China. The new Bosch Athlet is made in China, much to my disappointment of spending nearly £300 on a German company producing expensive items in China. I also wouldn't like to think that just because the Bosch is made in China, it is substandard, but a few of the plastic components on the Athlet of mine feel quite cheaply processed.