ISO/IEC 27001 certification in Switzerland

ISO 27001 certification in Switzerland at a glance

Swiss banks, insurers and hospitals share a legal duty that surprises many of their suppliers: since 1 April 2025 the Information Security Act has required listed critical-infrastructure organisations to report cyberattacks to the Federal Office for Cybersecurity. Banks also work to FINMA Circular 2023/1, which expects cyber risk to be covered according to internationally recognised standards and practices, and the revised FADP asks every controller and processor for data security appropriate to the risk. None of these texts names ISO/IEC 27001, yet their suppliers are regularly asked to show an information security management system that stands up to review. Certification is voluntary and is issued by a certification body, preferably one accredited by the Swiss Accreditation Service, after audit of the management system. Sterling's Frankfurt office helps Swiss organisations scope the system, run the risk assessment, write the Statement of Applicability and prepare for the audit, with Effivity software and Sterling Academy training included with the engagement.

Who needs ISO 27001 in Switzerland, and what happens without it

In Switzerland 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.

• Banks, insurers and financial market infrastructuresThe Information Security Act lists firms under the Banking Act, the Insurance Supervision Act and the Financial Market Infrastructure Act among those that report cyberattacks to the BACS, and banks also follow FINMA Circular 2023/1 on ICT and cyber risk.
• Hospitals, medical laboratories and medicinal-product manufacturersThe same Act names hospitals on cantonal hospital lists, licensed medical laboratories and holders of a manufacturing or import licence for medicinal products.
• Energy, drinking-water, rail and civil-aviation operatorsThese operators are on the Act's list of organisations that must see that cyberattacks on their IT are reported.
• Health IT suppliers to electronic patient record communitiesBodies certifying communities and access portals under the EPDV must be accredited for management-system certification, so suppliers to those communities are likely to face security questions from them.
• SaaS, hosting and managed-service providersThe FADP asks controllers and processors for data security appropriate to the risk, and a controller must satisfy itself that its processor can guarantee it.

ISO 27001 requirements in Switzerland

Strip away the vocabulary and ISO/IEC 27001 requires a company to prove six things about how it protects the information it holds.

In Switzerland 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 27001 explained →

• ISO 27001 requirements, clause by clause in plain language
• The documents ISO 27001 expects
• ISO 27001 checklist

How to get ISO 27001 certified in Switzerland

One team from the Frankfurt office carries the work from scoping to certificate. Clients across Switzerland are served from Sterling's Frankfurt 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 27001 and the Swiss 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 27001 certification process, step by step
• ISO 27001 gap analysis
• ISO 27001 implementation plan
• ISO 27001 internal audit

How long does ISO 27001 certification take in Switzerland?

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

• Number of sites, data centres and cloud services in scope
• Maturity of the risk assessment and Statement of Applicability
• Overlap with controls already built for FINMA, FADP or BACS reporting duties
• Certification body scheduling around the Swiss summer holiday period

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

• What drives the ISO 27001 timeline
• Scope and timeline estimator

How much does ISO 27001 certification cost in Switzerland?

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 Switzerland these factors move both.

• Headcount and number of sites in scope
• Number of systems and outsourced suppliers
• Certification body audit fees quoted separately from consulting
• Integration with ISO/IEC 27701 or ISO 22301 work

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

• What makes up the cost of ISO 27001

ISO 27001 consultants and certification bodies in Switzerland

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 27001 and your sector, and that its certificates can be verified online.
• Ask the consultant how the local requirements in Switzerland 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.

• Choosing an ISO 27001 certification body
• How to verify an ISO 27001 certificate

ISO 27001 in Switzerland: questions clients ask

More on ISO 27001 for Swiss organisations

• ISO/IEC 27001: the complete guide
• Watch: How to implement ISO/IEC 27001
• Banking and financial services: ISO/IEC 27001 for the sector
• BPO and shared services: ISO/IEC 27001 for the sector
• Government and public sector: ISO/IEC 27001 for the sector
• Healthcare and health data: ISO/IEC 27001 for the sector
• Professional and legal services: ISO/IEC 27001 for the sector
• Software, SaaS and technology: ISO/IEC 27001 for the sector
• Telecoms and data centres: ISO/IEC 27001 for the sector
• ISO 27001 certification in Switzerland and every other standard Sterling delivers there

Other standards Swiss businesses ask Sterling for

Organisations in Switzerland often combine ISO/IEC 27001 with one of these, under one management system where the scopes allow.

All 21 standards Sterling delivers in Switzerland →