Ask HN: Is there a register which company uses which bank?

In my country every company must declare on their website the bank account number. At least one number. I'm not sure what if they have more accounts in different banks.

I wonder is there already a service out there that provides the data on account numbers and banks that companies use?

Such list could be useful in preventing scams. Let's say that before making a payment to a company you would see it the associated number is really connected to that company or if some has breached your system and changed the account number. It could also help with fake invoices and so on.

Can such system even be built or is this not possible due to contracts beetween banks and clients?