Multiple Businesses on One Account?

Hello,

Is it possible to run multiple small business (2-3) off of one account? Each would have their own phone number. Could each have their own voicemail? Text phone numbers and auto-reply, etc? Could the caller ID be configured to show the different company names? It would be difficult to log in and out if multiple accounts for each company. Plus the cost would be significantly less to run everything on one account.