Thanks for laying out the details of your concern.

I'm here to make sure you can utilize the company name when creating an invoice in QuickBooks Online (QBO).

You can find your customers' company names on an invoice by simply choosing it under the Customer display name field of the customer info page. Let me show you how:

1. Go to the Customers & leads menu, then select the Customers tab. 
2. Find and select your customer's name and click Edit at the upper right.
   
3. Choose the company name in the Customer display name field.
   
   
4. Once done, select Save.

After that, you can now search for the company name and select it when creating your invoices in QBO.

Additionally, you'll want to create attractive and professional-looking invoices in QuickBooks Online. With this, you can personalize and add specific info that matters most to your business. To know more about this process, you can check out this article: Customize invoices, estimates, and sales receipts in QuickBooks Online.

Additionally, you can personalize and add specific information to your invoices and other form styles in QBO. To know more about it, you can check out the detailed steps in this article: Customize invoices, estimates, and sales receipts.

Don't hesitate to reply anytime if you have additional questions or concerns about managing your invoice transactions in QBO. I'm always here to lend a helping hand. Have a great day ahead!