This [incomplete and ongoing] list of works organized by instrumentation [and/or ensemble size/type] will hopefully serve as a resource for performers, composers and researchers alike. Each composition's author links back to their page, where you can find more information.
Draumbót [for alto flute, bass clarinet, harp, piano, and percussion]  :  Guðmundur Steinn Gunnarsson
Atómas [for 5 langspil]  :  Guðmundur Steinn Gunnarsson
Q-A [for 2 violins, viola, Bb clarinet, and piano]  :  Jesper Pedersen
Q-B [for 5 cellos]  :  Jesper Pedersen
Hajodakese [for 5 percussionists and electronics]  :  Jesper Pedersen
Study no. 19 [for brass quintet or any 5 instruments]  :  Ryan Ross Smith
_4 [for alto flute, bass clarinet, violin, percussion, and piano]  :  Þráinn Hjálmarsson