The Australian Taxation Office administers superannuation accounts which have become separated from their owners.  To find your lost super, you’ll need a myGov account linked to the ATO.  Once you’ve created your account, select ‘Super’ and you’ll be able to find any super in your name and consolidate it all into one account.  If you don’t have a myGov account or don’t wish to create one, contact the ATO by other means.