The British Institute of Organ Studies (BIOS) provides the NPOR, the Historic Organ Sound Archive (HOSA), the Directory of British Organ Builders (DBOB) and the British Organ Archive (BOA). The content of the NPOR is managed under an agreement with the Royal College of Organists (RCO).
The National Pipe Organ Register is a free service designed for everyone with an interest in the organ and its history. Where possible, we encourage you to make a donation that reflects the value you place on the National Pipe Organ Register and the frequency of your use. Information about how we are funded and how to donate, is available on the BIOS NPOR donations page.