Changing the sender name of confirmation email

Also, on the confirmation email that is generated, is it possible to update the 'From' to our company name instead of 'JotForm <noreply@jotform.com>'?

You can change the Sender Name and Sender Email in the Emails wizard. Here's how:

In Form Builder V4, click the "Settings" menu. Go to the "Emails" section. Select the autoresponder and then click the "Edit" icon.

In the "Recipients" tab, you can change the "Sender Name". You can use your company name here.

You can change the "Sender Email" in the "Advanced" tab.

Related guides:
How-to-Add-a-Custom-Sender-Address-to-an-Email-Alert
How-to-Setup-SMTP-for-a-Form

Hope that helps. Let us know if you have any questions. Thank you.