2018: Hamlet in Absentia nominated for the Nordic Council Music Prize.

2017: Hamlet in Absentia among the three nominated for the prestigious Reumert Awards as ”Opera of the year” in Denmark. TBA June 2017.

2016: Icelandic Music Awards for the opera Hamlet in Absentia.

2015: Icelandic Music Awards for the violin concerto Absentia.

2014: The Optimism Award – awarded by the president of Iceland to one artist each year.

2014: Three year grant from the Danish Arts Council.

2013: First prize in the Nordic Music Days Composition Competition – Fairy Tales in Music. Awarded for The Deacon of Dark River – a Ghost Story.

2013: Three nominations for the Icelandic Music Awards; ”CD of the year” (Calm of the Deep), ”Composition of the year” (Ice Age, for choir) and ”Composer of the year”.

2012: Orkestur wins the Icelandic Music Awards.

2011: Matins (string quartet and electronics) among 20 pieces selected from over 500 applications for the MATA festival in New York 2012

2011: Händelusive selected for the ISCM festival in Zagreb and nominated for the ISCM Young Composer Award.

2010: Händelusive represented at the International Rostrum of Composers in Portugal and ended among the 10 recommended works, receiving radio play in over 30 countries.

2009: Apocrypha CD nominated for the Icelandic Music Awards; CD of the Year.

2008: Apocrypha CD receives Kraumur Awards; CD of the Year.

2008: Apocrypha CD featured on mbl.is top 10 list over CD’s of the year (cross-genre).

2008: Apocrypha receives Icelandic Music Awards; Composition of the Year.

2007: Gudmundsson nominated for the prestigious DV Cultural Awards (Icelandic Newspaper).

2007: Eq. IV: Windbells (b.fl., b.cl., gtr, vlc, pno, electronics) nominated for the Icelandic Music Awards; Composition of the Year.

2006: Eq. IV: Windbells represented at the International Rostrum of Composers in Paris and was the only piece recommended in both categories (composers under 30 years of age and all composers).

2005: Adoro Te Devote (choir and saxophone quartet) nominated for the Icelandic Music Awards as Composition of the Year. At 28 Gudmundsson was the youngest composer ever nominated in this category.