[Case Study] Real Transformation in Action: Shared Services & GBS Impact Showcase

[Case Study] Real Transformation in Action: Shared Services & GBS Impact Showcase

A curated collection of measurable transformation case studies from NTT Data, Michelin, Siemens, Takeda, Mars and Genpact.

This showcase brings together real-world transformation stories from leading organisations across Europe. Each case study outlines the challenge, approach and measurable results – across Finance, HR, customer operations and enterprise technology.

Headline results include:

  • NTT DATA – 39% increase in AP productivity, invoice cycle time reduced from 6 to 2 days, and DSO cut by 7 days
  • Mars & Genpact – $30M P&L impact (vs $20M target) and $80M recovered in invalid deductions
  • Siemens – 80% of global HR catalogue standardised and 350+ mailboxes consolidated into one channel, maintaining 8.7/10 satisfaction
  • Michelin – 22% reduction in invoicing errors and near tripling of digital portal adoption
  • Takeda – Enterprise GenAI digital assistant delivering 24/7 support and significantly reducing manual tickets

Every case study featured is an SSON Impact Award winner – independently recognised for delivering measurable, enterprise-wide impact.

Download your copy to explore the full transformation journeys.