Ralf Thomas Kersten

neuroConn GmbH develops and manufactures diagnostic and therapeutic devices. It produces equipment designed for neurology, psychiatry and psychology services. The firms products are used in neuro feedback therapy treatments of Attention Deficit Hyperactivity Disorder Syndrom, epilepsy, migraine and tinnitus. The company was founded by Ralf Thomas Kersten and Klaus Schellhorn in 2005 and is headquartered in Ilmenau, Germany.

JENOPTIK Laserdiode GmbH develops, manufactures and markets diode lasers. They are used chiefly as an excitation source for solid state lasers or serve as a direct beam source in medical technology and material processing. It offers an array of bar-based diode lasers with thermal capacity ranging from lasers in open heatsink design to fiber-coupled diode lasers as well as vertical and horizontal diode laser stacks with wavelengths. Beginning at 30W, its diode lasers are available up to several hundred watts for both constant and pulsed operation. The company is headquartered in Jena, Germany.