Gilbert and Sullivan Gilbert and Sullivan Gilbert and Sullivan refers to the Victorian-era theatrical partnership of the dramatist W. S. Gilbert (1836–1911) and the composer Arthur Sullivan (1842–1900) and to the works they jointly created. The two men collaborated on fourteen comic operas between 1871 and 1896, of which "H.M.S. Pinafore", "The Pirates of Penzance" and "The Mikado" are among the best known. Gilbert, who wrote the libretti for these operas, created fanciful "topsy-turvy" worlds where each absurdity is taken to its logical conclusion—fairies rub elbows with British lords, flirting is a capital offence, gondoliers ascend to the monarchy, and pirates emerge as
National Gilbert & Sullivan Opera Company music directors for the company. In 2014, the festival registered the company with Companies House as the National Gilbert & Sullivan Opera Company. The company's performances are accompanied by the festival's National Festival Orchestra. It generally presents four productions each year at the festival, and the festival sells videos of most of its productions. In 2018, in connection with the 25th anniversary of the International G&S Festival, the company is presenting six productions in Harrogate, Buxton and on tour. Uniquely among professional companies in Britain, other than D'Oyly Carte, the National Gilbert & Sullivan Opera Company has presented all 13