Does jot form support sso

We do support single sign on but currently only for Enterprise users:

https://www.jotform.com/enterprise/

For accounts other than Enterprise, we have the ability to share forms with other accounts as sub-users:

https://www.jotform.com/help/232-How-to-Share-Forms-with-a-Sub-Account-User

Good News,

Jotform Enterprise is released and it supports "Single Sign On" feature. You can get further info on https://www.jotform.com/enterprise/