Is Rubrik Cloud Cluster certified with EVS

Based on the available information, there is no explicit mention of Rubrik Cloud Cluster being certified specifically with Amazon Elastic VMware Service (EVS).

While Rubrik Cloud Data Management (CDM) is mentioned as a solution for VMware vSphere backups to Amazon S3, with capabilities for backing up VMs to a Rubrik Cluster and archiving to Amazon S3, there is no specific certification information regarding Rubrik with EVS.

Amazon EVS does support third-party backup solutions, with Veeam Backup and Replication being specifically mentioned as a compatible backup solution. EVS runs VMware Cloud Foundation (VCF) 5.2.1 and allows customers to integrate add-ons and third-party solutions they already trust, but Rubrik is not explicitly listed among these.

Without specific information about Rubrik's certification with EVS, I would recommend contacting your AWS representative or Rubrik support directly to confirm compatibility and certification status.
Sources
Rubrik Cloud Data Management - VMware vSphere Backups to Amazon S3
Run VMware your way: Amazon Elastic VMware Service is now generally available | Migration & Modernization