What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
As far as I understand from your thread, you send your forms via email. If it is, you can change the email sender name by changing the "From Name" on "Publish".
To do that,
Open the "Publish" and click to "Share Form" button, then click to "Email".
On that page, change the "From name" value with the desired name.
For further information, please don't hesitate to contact us.