Is that possible to give different application access in the workspace to the customer portal users ?

Is that possible to give different application access in the workspace to the customer portal users ?

Dear Team,

Please refer to the below requirement.

Is that possible to give different application access to the customer portal users ?

For example,

Once I logged into the customer portal credential I want to access the different application in the workspace. [Like "User" to access the different applications in the workspace]

Kindly please check this possibilities and let me know the better solution. 

Thank You.