Case Study: Avera Health achieves zero‑impact consolidation of four Active Directory forests with Quest Migration Manager for Active Directory

Health system improves care with seamless AD migration

Avera Health, a 16,000-employee Midwestern health system serving nearly one million people across 330+ locations, needed to consolidate four Active Directory forests (13 domains, more than 20,000 accounts) into a single domain to reduce costs, simplify access for clinicians, and centralize security—without any disruption to patient care.

Using Quest Migration Manager for Active Directory, Avera completed the migration far faster than planned—shaving six months off a 14-month projection—migrating thousands of users, groups and PCs with zero user impact and no data loss. The automated move delivered a 99% success rate, immediate ROI and an estimated $50,000 in savings while simplifying ongoing IT management.

Avera

Curtis Mavity

Senior Systems Engineer