GratXray is an innovative medical device company, developing, producing and marketing systems based on phase contrast enhanced X-ray imaging. Our worldwide patented method is ideal for soft tissue imaging, as it provides unprecedented density contrast and tissue delineation in low absorbing tissues. We are focusing on applications, where classic X-ray systems fail or provide unsatisfied results. Our first focus is breast cancer imaging, which we address by developing a Grating-Interferometry Breast-Computed-Tomography (GI-BCT) system. With this true volumetric 3D approach, we will provide more precise breast tumor detection without need of contrast agents. The breast can be measured without compression, massively improving patient comfort.