You need 10 Gold to create an Organisation.
In order to create an Organisation you have to click on My Places -> Organisations -> Create Organisation.
On the respective page you will have to write the Name of your Organisation and after you done that just press Create button.
From an organisation you will be able to create company.
An organisation acts almost as a player: you can create newspapers, buy, store or donate items through it and change location. Organisations can vote on articles but can't subscribe to newspapers, they can't vote on elections, eat food, or fight.
You can add new managers to help you by going to My places -> Members , then type a name of a new manager and click Add manager.