ISO/IEC 27701 certification in the United Kingdom

ISO 27701 certification in the UK at a glance

Privacy teams at UK organisations often already hold an ISO/IEC 27001 certificate and still struggle to show, in one place, how personal data is governed from collection to deletion. ISO/IEC 27701 closes that gap by extending the information security management system into a privacy information management system, with defined controller and processor controls. The legal backdrop is moving: the Data (Use and Access) Act 2025 amends the UK GDPR, the Data Protection Act 2018 and PECR, with its changes commenced in stages, while processors serving EEA clients may also fall within the EU GDPR. Bank and insurer due diligence under the PRA's outsourcing statement asks about data protection compliance too. The ICO keeps its own register of approved UK GDPR certification schemes, so an ISO/IEC 27701 certificate should be presented as accredited certification, not regulatory approval. Certification is granted by an accredited certification body. Sterling's London office builds the extension on your existing ISMS, with Effivity and Sterling Academy included.

Who needs ISO 27701 in the UK, and what happens without it

In the UK 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.

• Controllers and processors evidencing UK GDPR accountabilityA privacy information management system documents how personal data is governed.
• UK processors serving EEA clientsEU GDPR scope and client contracts call for demonstrable privacy controls.
• Technology providers to banks and insurersPRA SS2/21 due diligence considers data protection compliance and certified adherence to industry standards.
• Organisations already certified to ISO/IEC 27001ISO/IEC 27701 extends the existing ISMS to privacy.

ISO 27701 requirements in the UK

Strip away the vocabulary and ISO/IEC 27701 requires a company to prove six things about how it handles personal data.

In the UK 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 27701 explained →

• ISO 27701 requirements, clause by clause in plain language

How to get ISO 27701 certified in the UK

One team from the London office carries the work from scoping to certificate. England, Scotland, Wales and Northern Ireland, on-site from London; 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 27701 and the UK 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 27701 certification process, step by step
• ISO 27701 internal audit

How long does ISO 27701 certification take in the UK?

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

• Whether an ISO/IEC 27001 ISMS is already certified
• Number of processing activities and systems to map
• Controller, processor or joint roles across entities
• Changes from the Data (Use and Access) Act 2025 being commenced

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

• Scope and timeline estimator

How much does ISO 27701 certification cost in the UK?

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 the UK these factors move both.

• Scope of the existing ISMS and entities
• Volume of processing activities and data subjects
• Certification body audit fees, quoted separately from consulting
• Contract and notice remediation

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

• What makes up the cost of ISO 27701

ISO 27701 consultants and certification bodies in the UK

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 27701 and your sector, and that its certificates can be verified online.
• Ask the consultant how the local requirements in the UK 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 27701 in the UK: questions clients ask

More on ISO 27701 for UK organisations

• ISO/IEC 27701: the complete guide
• Watch: How to implement ISO/IEC 27701
• Sterling in London
• ISO 27701 certification in the UK and every other standard Sterling delivers there

Other standards UK businesses ask Sterling for

Organisations in the UK often combine ISO/IEC 27701 with one of these, under one management system where the scopes allow.

All 23 standards Sterling delivers in the United Kingdom →