Do we need to have an account in those services to collect payments?

Im about to select a payment method with through your jotform for our website, but we don't know which fit with us. We are a company in Peru and would like to know what do we have to do to recieve payments. Do we need to have an account in some of those services? 

You can integrate your form with any of the payment methods that are available. Please use this link  to see all the available payment processors: https://apps.jotform.com/category/payment_processing

You can also follow this reference guide: Mastering-Payment-Form-Integrations-with-JotForm

Do we need to have an account in some of those services?

If you wish to use a payment processor, you should have an account in that to collect the payments and all the payments that you collected will be sent to that linked account.