Company

Gilbert and Sullivan Opera Company, Chicago

Rugby Operatic Society

Chelmsford City Opera

Finborough Theatre, London (Professional)

Kentish Opera

Matlock Gilbert and Sullivan Society (Buxton)

New London Opera Group

Opera South

South Wessex Opera Company

Windsor and Eton Opera

Wolverton Gilbert & Sullivan Society

Mill Hill Amateur Operatic Society (Concert)

Rockdale Opera, Sydney

Great Witley Operatic Society

Chichester Amateur Operatic Society

Northampton Gilbert & Sullivan Group

Winchester Amateur Operatic Society

Exmouth Amateur Operatic Society

Lyric Theater of San Jose

Weston-super-Mare Operatic Society

Bourne End Amateur Operatic Society

Buttington & District Amateur Operatic Society

Chelmsford City Opera

Gilbert and Sullivan Opera Victoria, Australia

Manor Light Opera

Sheringham Savoyards

Tynemouth Amateur Operatic Society

Reigate & Redhill Opera Club

Denmead Operatic Society

Hereford Gilbert and Sullivan Society

Ruislip Operatic Society

Astwood Bank Operatic Society

Guildford Opera

Radlett Light Opera

Erith Operatic Society

Gosforth Trinity Musical Society

Tiverton Amateur Operatic Society

Zodiac Light Opera Society

South Australian Light Opera Society

The Savoy Singers, Camberley

Crediton Operatic and Dramatic Society

Poynton Gilbert and Sullivan Society

Mill Hill Amateur Operatic Society

Rock Ferry Operatic Society

Worthing Musical Theatre Company

Great Witley Operatic Society

Lyme Regis Operatic Society

Marlow Amateur Operatic Society

Reigate & Redhill Opera Club

Torquay Operatic Society

Gilbert and Sullivan Opera Victoria, Australia

Inverness Opera Company

Waterside Musical Society

Bishops Stortford Amateur Operatic Society

Burnley and Pendle Gilbert and Sullivan Theatre Company

Bury St Edmunds Amateur Operatic and Dramatic Society

Manor Light Opera

Worle Operatic & Dramatic Society

Cranbrook Operatic and Dramatic Society

Farnham Amateur Operatic Society

Kirkcaldy Gilbert and Sullivan Society

Littlehampton Players Operatic Society

Lytham Amateur Operatic Society

Sainsbury Singers

Walton and Weybridge Amateur Operatic Society

Brussels Gilbert & Sullivan Society

East Norfolk Operatic Society

Guiseley Amateur Operatic Society

Hull Savoyards

Kidlington Amateur Operatic Society

Loughton Operatic Society

Maidenhead Operatic and Dramatic Society

Southminster Operatic & Choral Society

Havering Music Makers

Ohio Light Opera

Bromsgrove Operatic Society

Buttington & District Amateur Operatic Society

Keynsham Light Opera Group

Kings Langley Light Opera Company

Bourne End Amateur Operatic Society

Rugby Young Teachers' Operatic Society

Tynemouth Gilbert & Sullivan Society

Whitehaven Amateur Operatic Society

Aberdeen Opera Company

Eastwood Uniting Church Musical Society, Sydney

Knowle Musical Society

Rockdale Opera, Sydney

Benfleet Operatic Society

Radlett Light Opera

Tenbury Amateur Operatic Society

Tiverton Amateur Operatic Society

Leicester Operatic Players

Bath Light Operatic Group

Dumfries Musical Theatre Company

Oxford Operatic Society

Trowbridge Amateur Operatic Society

Basingstoke Amateur Operatic Society

Bury St Edmunds Amateur Operatic and Dramatic Society

Chichester Amateur Operatic Society

Finchely and Friern Barnet Operatic Society

Hatton Operatic Society

Haverhill & District Operatic Society

Putney Light Operatic Society

St Albans Operatic

Walton and Weybridge Amateur Operatic Society

Windsor & Eton Operatic Society

Wolverton Gilbert & Sullivan Society

Woodford Operatic & Dramatic Society

Ashbeian Musical Theatre Group

Guildford Opera

Wycombe Savoy Opera

Dursley Operatic and Dramatic Society

East Berkshire Operatic Society

Kirkcaldy Gilbert and Sullivan Society

North Toronto Players

Bourne End Amateur Operatic Society

Brierley Hill Musical Theatre Company

Chester Operatic Society

Exmouth Amateur Operatic Society

Ingatestone Musical and Operetta Society

Mill Hill Amateur Operatic Society

NEOS Productions, New Eltham

Queensbridge Musical Theatre Society

Southampton University Light Operatic Society

Barnstaple Amateur Operatic Society

Beverley Musical Theatre

Erith Operatic Society

Lutterworth Musical Theatre Company

New Rosemere Amateur Operatic Society

Ruislip Operatic Society

Tynemouth Amateur Operatic Society

Western Opera Players

Yeovil Amateur Operatic Society

Alton Amateur Operatic Society

Devizes Musical Theatre

Littlehampton Players Operatic Society

Risley Musical Theatre Company

Thornbury Musical Theatre Group

Basildon Operatic Society

Bristol Gilbert and Sullivan Operatic Society

Herne Bay Operatic Society

Kingsbury Amateur Operatic Society

Largs Amateur Operatic Society

Ringwood Musical & Dramatic Society

Weymouth Operatic Society

Aberdeen Opera Company

Astwood Bank Operatic Society

Batley Thespians

Boston Operatic Society

Bournemouth Operatic Society

Cambridge Amateur Operatic Society

Darlington Operatic Society

East Renfrewshire Operatic Society

Enfield Light Operatic and Dramatic Society

Manor Light Opera

Wakefield West Ridings Operatic Society

Brighouse Light Opera Society

Bury St Edmunds Amateur Operatic and Dramatic Society

Crediton Operatic and Dramatic Society

Hereford Gilbert and Sullivan Society

Lakeshore Light Opera, Montreal, Canada

Ramsgate Operatic Society

Retford Operatic Society

Staines Musical Theatre Group

Whitehaven Amateur Operatic Society

Benfleet Operatic Society

CODY Farnborough Amateur Operatic Society

Eastwood Uniting Church Musical Society, Sydney

Wimbledon Light Opera Society

Banstead and Nork Amateur Operatic Society

Croydon Operatic and Dramatic Association

Kings Langley Light Opera Company

Woodseats Musical Theatre Company

Birkenhead Operatic Society Trust

Buttington & District Amateur Operatic Society

Garforth Musical Society

Great Yarmouth Gilbert and Sullivan Society

Putney Light Operatic Society

Ayrshire Philharmonic Opera Society

Coleshill Operatic Society

Durham Amateur Operatic Society

Erith Operatic Society

Leicester Operatic Players

Tenbury Amateur Operatic Society

Exeter Amateur Operatic Society

St Ives Music and Drama Society

Tynemouth Amateur Operatic Society

West Bromwich Operatic Society

Winchester Amateur Operatic Society

Woodford Operatic & Dramatic Society

Bishops Stortford Amateur Operatic Society

East Surrey Operatic Society

Ravensbourne Light Operatic Society

Sainsbury Singers

Tiverton Amateur Operatic Society

Barnes and Richmond Operatic Society

CASSIO Operatic Society

East Berkshire Operatic Society

New Earswick Musical Society

Paisley Musical and Operatic Society

Selsey Amateur Choral and Operatic Society

Walton and Weybridge Amateur Operatic Society

Bridgnorth Musical Theatre Company

Redruth Amateur Operatic Society

Abingdon Operatic Society

Banstead and Nork Amateur Operatic Society

Kirkcaldy Gilbert and Sullivan Society

Lyme Regis Operatic Society

Ruislip Operatic Society

Sidcup Operatic Society

Dursley Operatic and Dramatic Society

Garforth Musical Society

Rugeley Operatic Society

CASSIO Operatic Society

Newbury Operatic Society

Cromer and Sheringham Amateur Operatic & Dramatic Society

Geoids Amateur Operatic Society

Gilbert and Sullivan Opera Victoria, Australia

Horsham Amateur Operatic and Dramatic Society

Putney Light Operatic Society

Romiley Operatic Society

Finchely and Friern Barnet Operatic Society

Rochdale Amateur Operatic Society

Sydney Gilbert and Sullivan Society

St Andrew's Operatic Society

Bishop Auckland Amateur Operatic Society

Glasgow Light Opera Club

Gosforth Trinity Musical Society

Paisley Musical and Operatic Society

Wimbledon Light Opera Society

Alton Amateur Operatic Society

Basildon Operatic Society

Bohemians Lyric Opera Company (Edinburgh)

Brixham Operatic and Dramatic Society

Cairns Choral Society

Carlisle Musical Society

Chester Operatic Society

Crewe Amateur Operatic Society

East Surrey Operatic Society

Exeter Amateur Operatic Society

Farnham Amateur Operatic Society

Frome Amateur Operatic Society

Hatton Operatic Society

Inverness Opera Company

Kings Langley Light Opera Company

Leicester Operatic Players

Loughborough Amateur Operatic Society

Melton Mowbray Amateur Operatic Society

Nuneaton Amateur Operatic & Dramatic Society

Penarth Operatic & Dramatic Society

Rayleigh Operatic and Dramatic Society

Salisbury Amateur Operatic Society

South Moor Musical Theatre Group

Southampton Musical Society

Stirling & Bridge of Allan Operatic Society

Tiverton Amateur Operatic Society

Walton and Weybridge Amateur Operatic Society

Alton Amateur Operatic Society

Chesterfield Operatic Society

Chichester Amateur Operatic Society

Orpheus Amateur Operatic Society, Ottawa (Canada)

Rugeley Operatic Society

Sainsbury Singers

South Moor Musical Theatre Group

Ayrshire Philharmonic Opera Society

Banstead and Nork Amateur Operatic Society

Barnes and Richmond Operatic Society

Brierley Hill Musical Theatre Company

Bury St Edmunds Amateur Operatic and Dramatic Society

Chelmsford Amateur Operatic and Dramatic Society

Ellesmere Port Musical Theatre Company

Finchely and Friern Barnet Operatic Society

Hereford Gilbert and Sullivan Society

Ilford Operatic and Dramatic Society

Oxford Operatic Society

Putney Light Operatic Society

Risley Musical Theatre Company

Stratford Operatic Society

Urmston Musical Theatre

Western Opera Players

Astwood Bank Operatic Society

Briton Ferry Musical Theatre Company

Chelmsford Amateur Operatic & Dramatic Society

Clevedon Light Opera Club

Coleshill Operatic Society

Eastbourne Operatic and Dramatic Society

Exmouth Amateur Operatic Society

Geoids Amateur Operatic Society

TOADS Stage Musical Company

Basildon Operatic Society

Bognor Regis Operatic Society

Brixham Operatic and Dramatic Society

Harrow Light Opera Company

Hatton Operatic Society

Hull Savoyards

Kingston Vale Operatic and Dramatic Society

Lytham Amateur Operatic Society

Matlock Operatic Society

Newcastle upon Tyne Amateur Operatic Society

Petts Wood Operatic Society

Ponteland Repertory Society

Ruislip Operatic Society

Sale and Altringham Musical Theatre

Croydon Operatic and Dramatic Association

Dumfries Musical Theatre Company

Gloucester Operatic & Dramatic Society

Llangollen & District Amateur Operatic & Dramatic Society

Newbury Operatic Society

Penzance Amateur Operatic Society

Western Opera Players

Chichester Amateur Operatic Society

Hatton Operatic Society

Heaton Church Amateur Operatic and Dramatic Society

Sainsbury Singers

Shrewsbury Amateur Operatic Society

St Ives Music and Drama Society

Sydney Gilbert and Sullivan Society

Wimbledon Light Opera Society

Winchester Amateur Operatic Society

Yeovil Amateur Operatic Society

Bury St Edmunds Amateur Operatic and Dramatic Society

Crewe Amateur Operatic Society

Exeter Amateur Operatic Society

Ilford Operatic and Dramatic Society

Oxford Operatic Society

Southern Light Opera Company

Darlington Operatic Society

Risley Musical Theatre Company

Croydon Operatic and Dramatic Association

Ferryhill Amateur Operatic Society

Orpheus Amateur Operatic Society, Ottawa (Canada)

Dundee Operatic Society

Gainsborough Amateur Operatic Society

Norfolk & Norwich Operatic Society

Ripley & Alfreton Musical Theatre Company

St Annes Amateur Operatic and Dramatic Society

Banstead and Nork Amateur Operatic Society

Berkhamsted Theatre Company

Finchely and Friern Barnet Operatic Society

Geoids Amateur Operatic Society

Sevenoaks Players

St Ives Music and Drama Society

Stourbridge Amateur Operatic Society

Stratford Operatic Society

Sutton Coldfield Musical Theatre Company

Torquay Operatic Society

Whitehaven Amateur Operatic Society

Alton Amateur Operatic Society

Crewe Amateur Operatic Society

Exeter Amateur Operatic Society

Hanwell and Ealing Operatic Society

Wimbledon Light Opera Society

Axminster Operatic Society

Barnes and Richmond Operatic Society

Hamilton Operatic and Dramatic Club

Newbury Operatic Society

Paisley Musical and Operatic Society

Selkirk Amateur Operatic Society

Warrington Musical Society

Ruislip Operatic Society

Watford Operatic Society

Brighton and Hove Operatic Society

Peterborough Operatic and Dramatic Society

Witham Amateur Operatic Society

Bangor Operatic Society

Clacton Amateur Operatic Society

Coalville Amateur Operatic Society

Eastbourne Operatic and Dramatic Society

Finchely and Friern Barnet Operatic Society

Marton Operatic Society

Chichester Amateur Operatic Society

Clitheroe Parish Church Amateur Operatic &  Dramatic Society

St Helens Gilbert and Sullivan Society

Weston-super-Mare Operatic Society

Frome Amateur Operatic Society

Gurnsey Amateur Dramatic and Operatic Club

Penarth Operatic & Dramatic Society

Bristol Amateur Operatic Society

Dundee Operatic Society

Erith Operatic Society

Grimsby and Cleethorpes Amateur Operatic Society

Hanwell and Ealing Operatic Society

Morley Amateur Operatic Society

Redruth Amateur Operatic Society

St Albans Operatic

Winchester Amateur Operatic Society

Yeovil Amateur Operatic Society

Carlisle Musical Society

Coventry Musical Theatre Society

East Surrey Operatic Society

Paisley Musical and Operatic Society

Shrewsbury Amateur Operatic Society

St Annes Amateur Operatic and Dramatic Society

Torquay Operatic Society

Vale of Leven Amateur Operatic & Dramatic Society

Bath Operatic and Dramatic Society

Exeter Amateur Operatic Society

Salisbury Amateur Operatic Society

Weymouth Operatic Society

Chapletown Amateur Operatic Society

Ilford Operatic and Dramatic Society

Kingsbridge Amateur Operatic Society

Orpheus Amateur Operatic Society, Ottawa (Canada)

Retford Operatic Society

Watford Operatic Society

Aberystwyth Operatic Society

Brighouse Amateur Operatic & Dramatic Society

Carlton Operatic Society

Chester Operatic Society

Cradley Heath Amateur Operatic Society

Dumfries Musical Theatre Company

Felling Stage Society

Hitchin Thespians

Innerleithen and District Amateur Operatic Society

Leicester Amateur Operatic Society

Rathmines and Rathgar Musical Society

Ruislip Operatic Society

Bishop Auckland Amateur Operatic Society

Dinnington Operatic Society

Rochdale Amateur Operatic Society

Barnes and Richmond Operatic Society

Brixham Operatic and Dramatic Society

Coalville Amateur Operatic Society

Glasgow Light Opera Club

Gloucester Operatic & Dramatic Society

Lytham Amateur Operatic Society

North End Choral Society, Portsmouth

Peterborough Operatic and Dramatic Society

Stock Exchange Dramatic and Operatic Society

Stourbridge Amateur Operatic Society

Maidenhead Operatic and Dramatic Society

Bath Operatic and Dramatic Society

Bristol Amateur Operatic Society

Coventry Musical Theatre Society

Exmouth Amateur Operatic Society

Brighton and Hove Operatic Society

Croft House Theatre Company

Gainsborough Amateur Operatic Society

Hanwell and Ealing Operatic Society

Ilford Operatic and Dramatic Society

Kidderminster Operatic and Dramatic Society

Loughborough Amateur Operatic Society

Orpheus Amateur Operatic Society, Ottawa (Canada)

South Shields Amateur Operatic Society

Bury St Edmunds Amateur Operatic and Dramatic Society

Chesterfield Operatic Society

Rathmines and Rathgar Musical Society

Concord Society, Neston

Frome Amateur Operatic Society

Hanwell Dramatic, Musical and Literary Society

Llangollen & District Amateur Operatic & Dramatic Society

Ringwood Musical & Dramatic Society

Doncaster Amateur Operatic Society

Grimsby and Cleethorpes Amateur Operatic Society

Barnes and Richmond Operatic Society

Canterbury Operatic Society

East Surrey Operatic Society

Exeter Amateur Operatic Society

Hamilton Operatic and Dramatic Club

Torquay Operatic Society

Weston-super-Mare Operatic Society

Worcester Operatic & Dramatic Society

Ashton-under-Lyne Operatic Society

Eastbourne Operatic and Dramatic Society

Nottingham Operatic Society

Southern Light Opera Company

St Annes Amateur Operatic and Dramatic Society

Brighton and Hove Operatic Society

Kings Lynn Operatic & Dramatic Society

Brighton and Hove Operatic Society

Lancaster Amateur Dramatic and Operatic Society

Orpheus Club, Glasgow

St Annes Amateur Operatic and Dramatic Society

Hartlepool Amateur Operatic Society

Rochdale Amateur Operatic Society

Southern Light Opera Company

Bristol Amateur Operatic Society

Leicester Amateur Operatic Society

Peterborough Operatic and Dramatic Society