Let me help you with your concern, Userbastian-ilham.
I'd like to know more about this, though. What do you mean if whether QuickBooks eligibate for various companies? Can you please provide us with more details?
In the meantime, if you're referring to QuickBooks Online being eligible for various companies in one browser, the answer is yes. You can open different companies through one browser only. However, one subscription is for only one company. You'll have to purchase another account/s to have two or more files. You can always visit our website to subscribe to more accounts. Then, ensure to select the correct country. You'll have to scroll down, click Select a Country, then choose.