Tiller BV sells the liftmobile. The liftmobile is a patented Dutch invention of Herman van der Helm. Herman van der Helm experienced back problems himself, causing him trouble several times per year. The idea for the liftmobile of Tiller® was born in 1992. Unfortunately, technology turned out not far advanced enough yet. It wasn't until 2007 that Herman van der Helm picked up the development of the liftmobile of Tiller® again, assisted by his daughter Laura, who had studied Industrial Product Design. Herman has used the liftmobile of Tiller® in his own company since 2009, and his back problems have not recurred.