organized
v.v. to plan and arrange an event or a group of things in a clear way. You do this when you want to make sure everything is ready and in the right place.
v. to arrange several elements into a structured whole or to coordinate the logistics of an event. Transitive in most contexts; often implies a systematic or hierarchical arrangement.
She organized a surprise party for her best friend.
The committee organized a series of workshops to help local businesses improve their digital marketing skills.
By the time the delegation arrived, the staff had already organized the files into chronological order to facilitate a more efficient review process.
The verb is transitive and requires a direct object. In British English, it is frequently spelled 'organised'.