Case Study: Siemens Healthineers achieves a two‑thirds cut in Active Directory infrastructure and scales to 25,000 weekly migrations with Avanade

Siemens - Customer Case Study

Siemens, a global industrial technology company with about 350,000 employees across dozens of countries, faced slow, complex IT integrations—especially when bringing newly acquired businesses and employees into its Active Directory—often taking months and creating organizational and technical bottlenecks.

Avanade partnered with Siemens using agile, cross-functional teams to build an Active Directory migration factory that added speed and flexibility to integrations. The program reduced AD infrastructure by two‑thirds, provided deeper IT infrastructure insights, enabled scaling to as many as 25,000 migrations per week, and remapped servers and applications to correct responsibilities, reloading Siemens’ Active Directory as a foundation for future growth.

Siemens Healthineers

Thomas Müller-Lynch

Active Directory Architect