ISO/IEC 20000-1 certification in Japan

ISO 20000-1 certification in Japan at a glance

ISMS-AC, the Japanese accreditation body best known for information security, also accredits certification bodies for IT service management systems under ISO/IEC 20000-1, alongside ISMS and business continuity. That gives IT service providers a single, familiar accreditation route for integrated certification. Demand comes most clearly from finance: the Financial Services Agency's 2024 cybersecurity guidelines expect banks, insurers and securities firms to manage third-party risk and allow due diligence to rely on external evaluations, including third-party certification. Government cloud work adds another layer, since agencies buy from the ISMAP Cloud Service List and look for mature service operations behind those registrations. Certification follows stage 1 and stage 2 audits of service planning, incident and problem management, change control and service-level reporting. Sterling's Tokyo office builds the service management system, often alongside an existing ISMS, with Effivity and Sterling Academy included in the engagement.

Who needs ISO 20000-1 in Japan, and what happens without it

In Japan the question rarely comes from a law. It comes from the buyer, the regulator or the partner that wants proof before it signs. These are the organisations that get asked.

• IT service and managed-service providers to financial institutionsThe FSA cybersecurity guidelines expect third-party risk management and allow reliance on third-party certification.
• Cloud and data-centre operators selling to governmentAgencies buy from the ISMAP list and look for mature service management.
• Internal IT departments of large groupsA certified ITSMS evidences service levels to the business.

ISO 20000-1 requirements in Japan

Strip away the vocabulary and ISO/IEC 20000-1 requires a company to prove six things about how it plans and delivers IT services.

In Japan these six sit alongside the local laws and regulations listed under drivers below; one system can evidence both. The detail is on the global hub: ISO/IEC 20000-1 explained →

• ISO 20000-1 requirements, clause by clause in plain language
• The documents ISO 20000-1 expects

How to get ISO 20000-1 certified in Japan

One team from the Tokyo office carries the work from scoping to certificate. Nationwide from the Tokyo office, on-site where the scope requires; remote delivery for distributed teams.

1. Discovery call and scopeEntities, locations, regulators and target date, agreed before any proposal.
2. Gap assessment against ISO/IEC 20000-1 and the Japanese requirements that apply to youControls you already run for your regulators and customers are reused, not rebuilt.
3. Your system built with your team in EffivityRisks, controls, evidence, incidents and reviews in one live system the auditor can see.
4. Internal audit, management review and corrective actionsYour internal auditors trained by Sterling; the evidence proven before the certification body arrives.
5. Certification body stage 1 and stage 2, then surveillanceAn accredited body audits and decides. Sterling supports the audits and the three-year cycle.

The Sterling Promise: 100% on-time completion, 100% success, 8,100+ client engagements.Sterling does not certify. Certification decisions stay with independent bodies.

• The ISO 20000-1 certification process, step by step
• ISO 20000-1 internal audit

How long does ISO 20000-1 certification take in Japan?

There is no standard duration: it depends on your scope and on how much of the system already runs. In Japan these are the factors that set the timeline.

• Number of services and service locations in scope
• Maturity of incident, change and service-level processes
• Integration with an existing ISMS
• Certification body scheduling around Japanese holiday periods

Sterling agrees a dated plan with you on the discovery call, once the scope is known.

• Scope and timeline estimator

How much does ISO 20000-1 certification cost in Japan?

The cost has two parts: the consulting work to build and prove the system, and the certification body’s audit fees, which are quoted separately. In Japan these factors move both.

• Number of services, customers and sites
• Certification body audit fees quoted separately from consulting
• Service management tooling and records

Sterling gives one customised, all-inclusive proposal after the discovery call, never before the scope is agreed.

• What makes up the cost of ISO 20000-1

ISO 20000-1 consultants and certification bodies in Japan

Two different organisations are involved. A consultant helps you build the system and prove it works; an accredited certification body then audits or assesses it and decides. Keeping the two separate is what makes the result credible to buyers and regulators.

• Check that the body’s accreditation or approval covers ISO 20000-1 and your sector, and that its certificates can be verified online.
• Ask the consultant how the local requirements in Japan are mapped into the same system, so nothing runs twice.
• Ask for client references in your sector; Sterling’s client letters are available on request.
• Agree who owns the evidence and the tool after the engagement; with Sterling the system stays yours, in Effivity.

ISO 20000-1 in Japan: questions clients ask

More on ISO 20000-1 for Japanese organisations

• ISO/IEC 20000-1: the complete guide
• Watch: How to implement ISO/IEC 20000-1
• Sterling in Tokyo
• ISO 20000-1 certification in Japan and every other standard Sterling delivers there

Other standards Japanese businesses ask Sterling for

Organisations in Japan often combine ISO/IEC 20000-1 with one of these, under one management system where the scopes allow.

All 21 standards Sterling delivers in Japan →