Is there an annual plan option for Enterprise? Follow Currently, the only plan that is offered is the Enterprise monthly subscription at the price of $9.99 per Sideline number. Questions? submit a request. Related articles How is my Enterprise subscription billed? Sideline Standard vs. Sideline Pro Contact Support Compare Sideline Account Types Do you need to have an existing Sideline account to sign up for Enterprise? Comments 0 comments Please sign in to leave a comment.