53 Steps was written by Fredrik Nils Thomander, Rachel Platten, Johan Boback. US mechanical royalties are collected by WC Music Corp. (33.33%), Kobalt Music Pub America INC (33.33%), Emi Blackwood Music INC (25%).
US mechanical shares as registered at The MLC · each writer’s chain: writer → publisher → administrator.
WC Music Corp. · Admin
Kobalt Music Pub America INC · Sub-publisher