Sivelov began studying the organ at age of 6 and later winning prizes throughout Scandinavia as an organist, mostly with his own compositions and improvisations.
His performance collaborations with conductors include, among others, Esa-Pekka Salonen, Leif Segerstam, Thomas Dausgaard, Jukka Pekka Saraste, Kees Bakels, Alan Gilbert, Paavo Berglund, Mario Venzago, John Axelrod and Kazufumi Yamashita.
He gives recitals in prestigious venues all over the world and has worked together with Mark Peskanov, Leonid Gorokhov, Martin Fröst, Patrick Gallois and Malena Ernman and, showing another side of his versatility, he has performed and recorded with accordionist Lelo Nika.
Few pianists have the courage and stamina to perform Bach's Das Wohltemperierte Klavier book 1 and 2 in three concerts, as Niklas Sivelöv has done with success in legendary Bargemusic, New York in January 2010.
The distinctions Niklas Sivelöv has received are many and impressive signifying his position as leading Scandinavian pianist.