I am a solo bookkeeper and I use Quickbooks Desktop Pro which supports multiple companies.  I know Quickbooks Online supports it too but there is a separate paid subscription for each company and is too pricey for me.  

Does Quickbooks Enterprise (online or desktop) support multiple companies without the additional charges?  What about the subscription plan for Quickbooks 2023.......does it include multiple companies in the 1 paid subscription?

Thanks.