The Enterprise Plan is for companies spending over $1M a year on AWS.
Companies that want to apply for the Enterprise Plan should contact sales for a fixed-rate quote for a minimum of 12 months. A quote can be given same-day after contacting sales and is based upon your current cloud spend.
Here is a breakdown of the services provided by the Enterprise Plan:
Enterprise Plan Feature Breakdown
Unlimited AWS Accounts
Savings Plan Recommendations
Monthly Bill Review
Dedicated Account Rep
SAML Single Sign-On