Cost Reduction Services Market, By Service Type (Strategic Sourcing and Procurement Optimization, Process Efficiency and Optimization, Technology and IT Cost Optimization, Energy and Resource Management, Outsourcing and Vendor Management), By Industry Vertical (Healthcare, Manufacturing, Retail and Consumer Goods, Financial Services, Information Technology, Energy and Utilities, Government and Public Sector), By Enterprise Size (Small and Medium-sized Enterprises (SMEs), Large Enterprises), By Deployment Model (On-Premises, Cloud-based), By End User (Private Sector, Public Sector), By Geography (North America, Latin America, Europe, Middle East & Africa, and Asia Pacific)