You can enter the company name, address, bank account number, tax number, and invoice email in 'Account settings > Invoicing'.
Here you can also customize the default invoice title, invoice prefix and number, and set a default due date and default invoice text. You can override the default due date and invoice text on individual clients, and also change these details on a specific invoice if you need to.
If you add a company logo here, it will also be shown on the invoice.