You can change the personal account into a business account by adding the company information (like registration Chambre de commerce and/or VAT number or whatever is used in your country related to business registrations).
Airbnb will then perform additional verifications.
Or you create a new account from scratch for your business.
Please note business information will be displayed on your listing(s)
(I own a business account and i consider this as annyoing)
I am also planning to add my INC to my current airbnb account and was worried about current bookings and previous reviews if I will lose those. It doesn't look like any issues adding company account.