It's nice to see you here in the Community. I can share some information about getting your company name and address on your bills in QuickBooks Online (QBO).
When creating Bills in QBO, what shows on that transaction are your vendor's information, item details, and amount. The option to add or get your company name and address on your bill is currently unavailable.
While this option isn't available yet, I encourage you to submit feedback. These requests and suggestions are forwarded to the Product Development Team for consideration in future updates. This can be done directly through your QBO account by selecting the Gear icon and Feedback or by going to the following link: QuickBooks Online Feature Requests. Please know that I'm going to submit feedback on my side as well for this feature.
Just in case you need it, you may check out these article for more information about Bills in general: