Half-metallic Co(2)NinSi finds a broad spectrum of applications in spintronic devices either in the form of thin films or as spacer in multilayers. Using state-of-the-art ab-initio electronic structure calculations we exploit the electronic and magnetic properties of ultrathin Co2MnSi/CoPd multilayers. We show that these heterostructures combine high values of spin-polarization at the Co(2)NinSi spacer with the perpendicular magnetic anisotropy of binary compounds such as CoPcl. Thus they could find application in spintronic/magnetoelectronic devices. (C) 2014 The Author. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license.