ISO/IEC 20000-1:2018 is the international standard for IT Service Management Systems (SMS). It defines requirements for planning, designing, transitioning, delivering, and improving IT services to meet agreed service requirements. The 2018 revision aligned the standard to the ISO High Level Structure (HLS) — making it compatible with ISO 27001, ISO 9001, and other management system standards for integrated implementation.

ISO 20000-1 is closely aligned with ITIL 4 best practices but is auditable and certifiable — making it the standard of choice when organisations need to demonstrate formal ITSM capability to clients, regulators, or public sector procurement bodies. In India, ISO 20000-1 is frequently required by government IT RFPs (NIC, NeGP), banking IT shared services, and large enterprise outsourcing contracts.

🏠 Integration Opportunity: ISO 20000-1 shares the same High Level Structure as ISO 27001 — allowing joint implementation with a single integrated management system, saving up to 40% in documentation and audit effort.