Links to music publishers or distributors of Simpson’s music
- Boosey & Hawkes Music Publishers Limited
- Faber Music Limited
- Universal Music Publishing Classical – for Lengnick Catalogue
- Goodmusic Publishing – for Roberton Publications
- Winwood Music – for brass and wind music
Links to recording companies issuing Simpson’s music
- Chandos Records – for Chandos and Dunelm Records
- Hyperion Records
- NMC Recordings
- Warner Classics – for EMI (but Simpson albums discontinued)
Links to performers of Simpson’s music
- Vanbrugh Quartet
- Maggini Quartet
- Coull Quartet
- Delmé Quartet
- Vertavo String Quartet
- Lindsay String Quartet
- Susan Milan – flute
- Black Dyke Mills Band
- Cambrian Brass Quintet
- Desford Colliery Band
- The GUS Band
- Locke Brass Consort
- Christopher Bowers-Broadbent – organist-composer
- City of London Sinfonia
- Royal Philharmonic Orchestra
- Royal Liverpool Philharmonic Orchestra
- Bournemouth Symphony Orchestra
- Kensington Symphony Orchestra
Links to composers influenced by Simpson
Links to other composers from the British Isles
- William Alwyn Foundation – furthering knowledge of composer William Alwyn (1905–1985)
- The Sir Arnold Bax Web Site – Richard Adams’ website devoted to the life and music of Sir Arnold Bax (1883–1953)
- The Havergal Brian Society – promotes the life and works of English composer Havergal Brian (1876–1972)
- All about Elgar – a comprehensive guide to the man (1857–1934), his music and the organisations which support him
- The Gustav Holst Web Site – on the life and music of Gustav Holst (1874–1934), by Kenric Taylor
- The John Ogdon Foundation – in memory of the legendary British pianist-composer John Ogdon (1937-1989)
- The Ronald Stevenson Society – to publicise and promote the music of Ronald Stevenson (1928–2015)
- Sir Michael Tippett website – dedicated to the memory of Sir Michael Tippett (1905–1998), by Tore Frantzvåg Steenslid
- The Ralph Vaughan Williams Society – promoting appreciation of the life and work of Ralph Vaughan Williams (1872–1958)
Links to British Music resources
- British Music Society – for all lovers of British music
- British Music Collection – a discovery platform for new music in the UK, run by Sound and Music
- British Composers – at MusicWeb International
- North American British Musical Studies Association – promotes the study of British music from all periods on the North American continent
- The Contemporary Music Centre, Ireland – archive and resource centre for new music throughout the Republic and Northern Ireland
Links to other major symphonists
- United Kingdom Sibelius Society – to promulgate Sibelius’s wonderful music to the widest possible audience
- Abruckner.com – John Berky’s discography of Anton Bruckner and home of the Bruckner Society of America and the Bruckner Archive
- DSCH Journal – dedicated to the life and work of Dmitri Dmitrievich Shostakovich
- International Gustav Mahler Society – everything about Mahler (1860–1911)
- Carl Nielsen Society – promotes the knowledge of Carl Nielsen and his music
- The Dvořák Society for Czech and Slovak Music – devoted to the musical arts of all Czech and Slovak composers and performers, past and present
Links to general classical music pages
- Music Library at Indiana University – the William and Gayle Cook Music Library at Indiana University
- Classical Net – Dave Lampson’s classical music source (repertoire, resources and links)
- Musicweb International – Len Mullenger’s titanic non-commercial classical music resource
- Moderated Classical Music List – a forum where enthusiasts can discuss all topics related to classical music
- MusicTeachers.co.uk – resources for music teachers
Links to other related sources
- Rex Foundation – sponsor partner for the Hyperion series of recordings
- Tempo – journal devoted to twentieth-century and contemporary music
- The National Early Music Association – produces the journal Leading Notes (now Early Music Performer)