The Gilbert and Sullivan Light Opera Company of Long Island a desire to try new projects and convinced that it had been depending too much upon “the Big Three,” the Company undertook a complete cycle of the works of Gilbert & Sullivan, beginning with Princess Ida in 1992 and concluding in 2004 with The Mikado. The Project, which has been an overwhelming success, has featured the Long Island premieres of four operas—Princess Ida, The Yeomen of the Guard, Utopia, Limited and The Grand Duke, as well as of the Sullivan/Stephenson operetta The Zoo. In 1995 the Company presented the world premiere of Gayden Wren’s A Gilbert & Sullivan Christmas Carol.
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