Steadfast Corporation Ltd (SCL) is the European master licence holder for IDD Therapy® rehabilitation and exclusive European distributor of the Spina-System® range of medical devices. The Spina-System devices, including the Accu-SPINA®, are manufactured in the USA by Atlanta-based North American Medical Corporation.

SCL is based in London and additionally distribute a number of other medical products, including the only reusable powder based Polar Powder COLDPAK™.