As Control Tower is built on the backbone of AWS Organizations, which allows you automatically control access and permissions for child accounts. AWS Organizations allows you to define Service Control Policies to limit the services that are available to different accounts within the Organization.
AWS Control Tower is a solution that helps automate the process of setting up and configuring multiple accounts known as AWS Landing Zone.
Best practices for a multi-account architecture are embedded in the solution, making AWS Control Tower perfect for companies with complex workloads and larger teams that want to quickly migrate to AWS.
Control Tower is deeply tied into AWS Organizations, a service that allows you to enroll any number of “child” accounts under a parent account and apply policies across all accounts from a single location.