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 Sideline Standard vs. Sideline Pro Compare Sideline Account Types (Enterprise) Managing your Subscription Contact Support Do you need to have an existing Sideline account to sign up for Enterprise? Comments 0 comments Please sign in to leave a comment.