The deal follows agreements with Panasonic and LG to manufacture Freesat-equipped TVs.
German-based TechniSat Digital Group, which has recently opened a dedicated UK office, is a leading manufacturer of set-top boxes, personal video recorders (PVRs) and IDTVs.
Martin Cole, TechniSat Digital UK's managing director, says: "We are extremely pleased to be working with Freesat. This provides us with the ideal opportunity to introduce the high-quality TechniSat brand and Freesat HD receiver into the UK market."