I think you need to open a business︂ account first. You can then set up the personal account from within the web app.︃ It may not be available for all. If you want, I can send you my︄ contact, my referral code (I know it work with this one) or open an account︅ from within my company (it works there too).
I think for the turnover, they are︆ not super strict, but chances that they open accounts for all your 77 companies is︇ less likely if you generate less than 100 USD turnover for them.