Olá boa tarde! Queremos dar upgrade no plano, mas antes preciso saber se é possível a nota fiscal ser em nome da empresa, e não pessoa física

I would suggest you to upgrade using either Check, Purchase order or Wire Transfer, this way you will be able to provide the info you want, here are the guides related to each payment method: 

https://www.jotform.com/help/354-How-to-Upgrade-and-Pay-by-Wire-Transfer

https://www.jotform.com/help/352-How-to-Upgrade-and-Pay-by-Mail-Check-Money-Order

https://www.jotform.com/help/353-How-to-Upgrade-and-Pay-by-Purchase-Order

However, do note that since these payment methods require manual process you will be able to purchase a yearly/bi-yearly subscription only. 

Hope this helps.