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South Korea · Certification

ISO/IEC 20000-1 certification in South Korea

Achieve ISO 20000-1 certification in South Korea with Sterling: 8,100+ client engagements in 60+ countries, 20+ years.

  • Accredited certification
  • Tokyo office team
  • Effivity software included
  • Academy training included

Clients include

  • Allianz
  • Emirates Flight Catering
  • Etihad Rail
  • Haier
  • Whirlpool
  • Emerson
In short

ISO 20000-1 certification in South Korea at a glance

Three South Korean instruments bear on ISO/IEC 20000-1. Not one of them names it. So why do buyers in South Korea keep asking for the certificate?

ISO/IEC 20000-1 has no Korean statute behind it, so demand is commercial and sector-led. The Network Act's national certification and the Electronic Financial Transactions Act's information security officer duty both bear on the stability of information and communications networks and financial technology, and service providers use IT service management to organise the incident, change and capacity processes behind those duties. The Korea Accreditation Board's published scheme list does not show ISO/IEC 20000-1, so a buyer should ask a certification body which accreditation backs its certificate and what scope it covers. Telecom and data-centre operators, managed-service providers, financial technology suppliers and shared-service centres are typical applicants. Sterling's Tokyo office prepares the service management system, service catalogue, incident and change processes and evidence, with Effivity and Sterling Academy included with the engagement. Sterling does not certify.

The need

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

In South Korea 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.

  • Telecommunication and managed-service providersThe Network Act's national certification covers the stability and reliability of information and communications networks, and a service management system organises the processes behind running them.
  • Data-centre operatorsThe Network Act lists data-centre operators among the entities that shall receive the national certification, and customers rely on their incident, change and capacity processes.
  • Financial technology and electronic financial service suppliersThe Electronic Financial Transactions Act makes the chief information security officer responsible for the technology that underpins electronic financial business.
  • Shared-service centres and outsourcersThey run services for clients under service levels, and a certified system shows how requests, incidents and changes are controlled.
  • ICT suppliers to public institutionsKONEPS publishes each bid's evaluation criteria, so any service management requirement comes from the individual notice.

Not sure which of these applies to you?Answer a short set of questions and your readiness report arrives by e-mail.

Take the ISO/IEC 20000-1 readiness check
Requirements

ISO 20000-1 requirements in South Korea

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

Services are defined and agreedA service catalogue and service-level agreements state what you deliver and to what standard.
Management owns the service systemTop management sets the service management policy and objectives and provides the people and tools to meet them.
Changes and releases are controlledChanges, releases and deployments are assessed, approved and tracked so live services stay stable.
Incidents and problems are resolvedIncidents and requests are handled to agreed targets, and recurring problems are traced back to their cause.
Capacity, continuity and security are plannedCapacity, availability, continuity and information security are planned so agreed service commitments can be met.
Suppliers and performance are reviewedSuppliers and internal teams are managed against agreements, performance is reported, and the system is audited and reviewed.

In South Korea 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 →

How Sterling gets a South Korean company certified

How to get ISO 20000-1 certified in South Korea

One team from the Tokyo office carries the work from scoping to certificate. Clients across South Korea are served from Sterling's Tokyo office, on-site where the work needs it and remotely otherwise.

  1. Discovery call and scopeEntities, locations, regulators and target date, agreed before any proposal.
  2. Gap assessment against ISO/IEC 20000-1 and the South Korean 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.
Included in every engagement
  • End to end, from one team
  • Effivity ISO & GRC software
  • Preferential Sterling Academy access, with complimentary awareness training for your people
  • Internal auditor training for your audit team, as applicable to your standard
  • Vulnerability assessment on ISMS engagements

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

Time

How long does ISO 20000-1 certification take in South Korea?

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

  • Number of services, customers and sites in scope
  • Maturity of incident, change, problem and capacity processes
  • Supplier and service-level agreement documentation
  • Certification body scheduling around the Seollal and Chuseok holiday periods

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

Cost

How much does ISO 20000-1 certification cost in South Korea?

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 South Korea these factors move both.

  • Number of services and locations in scope
  • Tooling and process documentation work
  • Certification body audit fees quoted separately from consulting
  • Integration with ISO/IEC 27001 and ISO 22301 systems

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

Choosing a partner

ISO 20000-1 consultants and certification bodies in South Korea

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 South Korea 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.

    Laws and regulations that drive ISO 20000-1 in South Korea (4)

    InstrumentHow it treats the standard
    Network Act, information security management system certificationDoes not name the standard
    The listed entities shall receive national certification for the stability and reliability of their information and communications networks.
    Electronic Financial Transactions Act, chief information security officerDoes not name the standard
    Appoints an officer responsible for electronic financial business and the technology security behind it.
    KONEPS bid informationDoes not name the standard
    Bid information and evaluation criteria are published per bid.
    Korea Accreditation Board scheme listDoes not list ISO/IEC 20000-1
    The published list shows other management-system schemes.

    Accreditation, audit language and remote audits in South Korea

    Use a certification body accredited for ISO/IEC 20000-1 by an accreditation body within the international mutual recognition arrangements (Global ACI — Global Accreditation Cooperation Incorporated, formerly the IAF MLA). The Korea Accreditation Board's published scheme list does not show ISO/IEC 20000-1, so ask the body which accreditation its certificates rest on and check the scope. No body is named here unless its accreditation scope has been verified. Edition and transition details: ISO/IEC 20000-1 hub →

    Audit language

    Agree the audit language and the language of service catalogues, procedures and records with the certification body at application; Korean and English are both used in technology companies.

    Remote and on-site

    Remote audit elements are at the certification body's discretion under its accreditation rules; service desks and operations centres in scope are normally visited on-site.

    ISO 20000-1 in South Korea: questions clients ask

    Is ISO 20000-1 required by any South Korean law?

    No law reviewed here names it. The Network Act and the Electronic Financial Transactions Act put duties on listed entities for information and communications networks and financial technology security, but neither cites ISO/IEC 20000-1. Demand comes from customers and tenders, so ask each buyer what evidence it expects before investing in certification.

    How do I check the accreditation behind an ISO 20000-1 certificate?

    Ask the certification body which accreditation body covers ISO/IEC 20000-1 for its certificates, and look at the scope on the accreditation body's own directory. The Korea Accreditation Board's published scheme list does not show this standard, so a Korean buyer may want to see an accreditation body within the international arrangements named on the certificate.

    How does service management differ from the national ISMS certification?

    They answer different questions. The Network Act's national certification is about the information security management system of listed entities, while ISO/IEC 20000-1 covers how services are designed, delivered and improved. A provider can run both on shared processes such as incident and change handling, but they are separate certificates with separate applications.

    Will public tenders ask for ISO 20000-1?

    Only if the individual notice says so. Bid information on KONEPS, including technical specifications and evaluation criteria, is published per bid, and the Public Procurement Service's page does not set a general certificate rule. Read the evaluation criteria in each notice and decide whether certification will earn points or just lower your risk.

    Read more

    More on ISO 20000-1 for South Korean organisations

    Explore

    Other standards South Korean businesses ask Sterling for

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

    All 22 standards Sterling delivers in South Korea →

    Next step

    Start with a free discovery call from the Tokyo office

    A Sterling consultant goes through your entities, your regulators and your target date with you. No proposal until the scope is agreed.

    Sources

    1. Network Act, information security management system certification — elaw.klri.re.kr (accessed 8 Oct 2026)
    2. Electronic Financial Transactions Act, chief information security officer — elaw.klri.re.kr (accessed 8 Oct 2026)
    3. KONEPS bid information — pps.go.kr (accessed 8 Oct 2026)
    4. Korea Accreditation Board scheme list — eng.kab.or.kr (accessed 8 Oct 2026)
    5. Korea Accreditation Board (KAB) — kab.or.kr; eng.kab.or.kr (accessed 8 Oct 2026)

    Talk to a consultant

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