2001 Perrier Award
2005 BBC Jazz Awards Rising Star
2005 British Jazz Awards Rising Star
2006-2008  BBC Radio 3 New Generation Artist
2007 All Party Parliamentary Jazz Awards – Jazz Musician of the Year
2011 Barclaycard Mercury Album of the Year
2013 All Party Parliamentary Jazz Awards – Jazz Ensemble of the Year- The Impossible Gentlemen

2005 Lichfield Suite for Big Band Lichfield Festival UK (45 mins) (Shortlisted for the British Composer Awards)
2007 Point of Contact for Scottish Ensemble (10 mins)
2007 The Hamburg Suite Concerto for Piano and Big Band for NDR Big Band, Germany (45 mins)
2007 Jackie’s Dance Orchestral Work for Britten Sinfonia UK(12 mins)
2008 Series of New Work for Acoustic Triangle (UK Tour)
2008 Contours for Aronovitz Ensemble (17mins) (City of London Festival/BBC Radio 3)
2008 Progressions for BBC Concert Orchestra and jazz trio (24 mins) (BBC Proms commission)
2009 Symphonic Construction on Chetham’s for Chetham’s School Manchester (15 mins)
2009 I Prefer the Gorgeous Freedom choral work for Norfolk and Norwich Festival
2010 The Solution for the Hague Festival, The Hague, Netherlands
2010 Simple Tales Trio work for Britten Sinfonia, UK
2010 Confluence Cheltenham Music Festival – work for piano and string Quartet
2010 The Hamburg Suite Part 2 – New Big Band Work for NDR Big Band, Germany
2011 Commission for Almeida Theatre – music for Edward Albee’s play”A Delicate Balance”
2011 Leasowes Bank Festival – Commission for 6 jazz/6 classical ensemble
2011 BBC Commission to improvise on the themes of Beethoven’s 5th Symphony
2012 Move! Work for City of London Sinfonia
2012 Antics City of London Festival Commission – Performance of Rafael Bonachela’s dance duet specially created for the 50 Golden Street Pianos, set to new music by Gwilym and danced by Sydney Dance Company (27 – 29 June)
2013 Vocal work for The Prince Consort
2014 On a Piece of Tapestry Commission for the City of London Sinfonia by PRS Biennial
2014 New Orchestral work for Blank Canvas
2014 Crimson! New work for Delta Saxophone Quartet
2014 New work for Royal Holloway College Choir
2016 Miles Ahead – Arrangements for City of London Sinfonia based on the music of Miles Davis
2016 Arrangements and new compositions for Andy Scott’s Ruby and All Things Purple
2016 Birdsong – New work with singer Kizzy Crawford
2017 Stomper – Commission for Onyx Brass NMC Recordings
2018 Sawgrass Suite – a one hour suite of music for the NDR Big Band
2019 Suite for Percussion Quintet for LSO Percussion Ensemble