The award, presented in partnership with BBC Radio 3 and The Tallis Scholars, recognised 16-year-old Ireland in the 18 years old and under category for her new a capella Lamentations.
Briggs (23) and Bell (22) were jointly recognised in the 19 to 25 category for Lamentations of Jeremiah: Jerusalem, return to the Lord thy God and The Lamentations of Jeremiah respectively.
The award was judged in York on 8 May 2014 in front of a panel of judges including Peter Phillips (director of The Tallis Scholars), Les Pratt (BBC Radio 3 lead producer: The Early Music Show) and Delma Tomlin (director of the NCEM).
All winning works will be premiered by The Tallis Scholars on 24 October at the Church of St. John the Evangelist, Oxford as part of the Music at Oxford International Concert Season.
The concert will be recorded for broadcast on BBC Radio 3’s Early Music Show at 2.00pm on 2 November 2014.
Tomlin said: ‘We were absolutely overwhelmed this year in terms of both the very high standard and quantity of responses to the Award.
‘Live-streaming the finalists’ concert enabled us to share this wealth of new talent with an even wider audience throughout the UK and gave the young composers an immediately broader platform for the premier of their compositions.
‘As the National Centre for Early Music, we are delighted that our partnership with BBC Radio 3, The Tallis Scholars and Music at Oxford extends the geographical reach of this Award across the UK. We look forward to all three performances in Oxford this October.’