IT Services - Cloud Hosted Platform Migration / DoIT

Seeking professional services to migrate all static, dynamic/user contributed content, and web forms of the city's official municipal website, listed above, from an onpremises drupal 10+ cms to pantheon. Configure security on the cloud hosting platform, including, but not limited to, two-factor authentication and sso via microsoft entra. Set up dev-test-live environments within the cloud hosing platform.