That would be Jens-Bjorn Larsen. Check out the same ensembles recording of Norgaard Symphony No.6 Spectacular performance, the part is quite a tour-de-force for the tuba.
Just been listening to the Hamerik CD - great recording!
I notice looking at the booklet that the symphony is actually recorded 2005, so probibly on a Thor (?) - even more present than the tuba used for the Requiem.