Company

Gilbert & Sullivan Opera Victoria

Finborough Theatre (Professional)

Una Voce Opera Company, Southport

Ramsgate Operatic Society

Whakatane Operatic Society, New Zealand

Staines Musical Theatre Group

Wimbledon Light Opera Society

Letchworth Arcadians

Bath Operatic Society

Tab Operatic Society

Cody Farnborough Amateur Operatic Society

Westwood Works Musical Society

Wimbledon Light Opera Society

Maltby Amateur Operatic Society

Putney Light Operatic Society

Staines Musical Theatre Group

Alderley and Wilmslow Amateur Operatic Society

Frome Amateur Operatic Society

Falkirk Amateur Operatic Society

Hulvuiz Operatic Society

Rochdale Amateur Operatic Society

Coalville Amateur Operatic Society

Basingstoke Amateur Theatrical Society

Kidderminster Operatic & Dramatic Society

Newbury Amateur Operatic Society

Gloucester Operatic & Dramatic Society

Hamilton Operatic Society, New Zealand

Weymouth Operatic Society

Gwauncaegurwen Welfare Amateur Choral & Operatic Society

Ulverston Amateur Operatic Society

Alderley and Wilmslow Amateur Operatic Society

Auckland Amateur Operatic Society

Cradley Heath Amateur Operatic Society

Hamilton Operatic and Dramatic Club

Neath Amateur Operatic Society

Brixham Operatic and Dramatic Society

King's Lynn Operatic & Dramatic Society

Redruth Amateur Operatic Society

Selkirk Amateur Operatic Society

Auckland Amateur Operatic Society

Christchurch Operatic Incorporated

Taunton Operatic Society

Watford Operatic Society

Wexford Light Opera Society

Hitchin Thespians

Harrow Light Opera Company

Worcester Operatic & Dramatic Society

Nottingham Operatic Society

Johannesburg Operatic & Drama Society

Frome Amateur Operatic Society

Brighton and Hove Operatic Society