Henry Willis & Sons is a British firm of pipe organ builders founded in 1845 in London at 2 & 1/2 Foundling Terrace, Gray's Inn Road. Although most of their installations have been in the UK, examples can be found in other countries. Five generations of the Willis family served as principals of the firm until 1997 when Henry Willis 4 appointed David Wyld as Managing Director, who subsequently became the majority shareholder. From London, the firm had moved to a purpose-built works, designed by Henry Willis III, at Petersfield. After acquisition by David Wyld, the firm re-located to its present base and head office in Liverpool.