There is an option in the form properties to have the organization and contact data populate from the last submission.

1. The form must be Inactive

2. Choose the form (don't open it)
3. Click Actions, choose Edit Properties.
4. On the left side under Require Account Login, Check the Populate Organization and Contact data from last submission.

User-added image

This will then prefill all of that out based on the last application they submitted under that login