You recognize The Sovereign Order of St. John of Jerusalem, Knights of Malta, very clear on there LOGO which is a dubel eagel with the cruz of Malta and there flag in it.
These organisations have no connection whatsoever with the Sovereign Military Order of Malta whose headquarters is located in Rome, at Via Condotti 68.

OSJ Malta is a ecumenical Order since Emperor Paul I of Russia received the title as Grand Master and carry since then the duble eagle in there LOGO. Because of political disorganization and wars in Europe  and actually disagreements of several Monarch houses, there have been born a lot of splitter organization.