ISO/IEC 20000-1 Maintenance for IT Service Management Systems

Sustain Performance. Improve Reliability. Ensure Compliance.

ISO 20000-1 Maintenance That Keeps Your ITSMS Effective and Audit-Ready

Wintersmith Advisory supports the ongoing maintenance of ISO/IEC 20000-1-certified IT Service Management Systems (ITSMS), helping organizations keep their systems effective, auditable, and aligned with evolving service demands.

Why choose Wintersmith Advisory for ISO/IEC 20000-1 maintenance?

• Annual system reviews and performance evaluation

• Process improvement and documentation updates

• Service level, availability, and risk control monitoring

• Support for continual improvement and nonconformity resolution

• Internal audit preparation and follow-up actions

• Recertification readiness and management review support

Ongoing Oversight for Sustainable Service Management

Maintaining an effective ITSMS requires more than periodic check-ins—it takes structured oversight, active risk control, and process engagement. We help you review what's working, resolve what isn’t, and keep your system aligned with ISO/IEC 20000-1 and service delivery realities.

Hands-On Maintenance That Keeps Your Team Aligned

From assessing process performance to refreshing roles, SLAs, and escalation paths, we keep your documentation current and your system audit-ready. Our hands-on approach ensures that your team stays in sync with requirements, while improvements are tracked and implemented over time.

Support That Grows with Your System and Services

• Flexible support to match your system maturity

• Quarterly, semi-annual, or annual review options

• Change management, process updates, and service scope changes

• Service desk, operations, and infrastructure alignment

• Proactive readiness for surveillance and recertification audits

Let’s Keep Your ITSMS Working—Not Just Certified

Need to keep your ITSMS working—not just certified?
Let’s maintain a system that grows with your services.