I noticed the Goethe course mentioned someone called Speexx
Learning material
learning programme developed by Speexx, written tasks on the Goethe-Institut learning platform
Speexx seem to be aimed at organizations rather than indivduals.
Speexx is a leading provider of award-winning cloud-based online language training and testing solutions for a global workplace. We help large organizations everywhere drive productivity by empowering employee communication skills across borders.