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Frameworks/ISO 27001
ISO 27001
ISO/IEC Standard

ISO 27001 Certification

The international standard for information security management. ISO 27001 certification demonstrates to customers, partners, and regulators that your organisation takes information security seriously.

Start your ISO 27001 journeyReadiness Assessment

What is ISO 27001?

The global benchmark for information security

ISO/IEC 27001 is the world's leading information security management system (ISMS) standard, published by the International Organisation for Standardisation (ISO) and the International Electrotechnical Commission (IEC). The current version, ISO 27001:2022, was updated to reflect modern threats and cloud-based environments.

Certification requires organisations to establish, implement, maintain, and continually improve an ISMS, a systematic approach to managing sensitive company information so that it remains secure. It encompasses people, processes, and technology.

ISO 27001 is recognised globally and is often a contractual requirement for enterprise customers, government contracts, and regulated industries.

Standard bodyISO / IEC
Current versionISO 27001:2022
Certification bodyUKAS-accredited (UK)
Audit stagesStage 1 (documentation) + Stage 2 (on-site)
Certification validity3 years with annual surveillance
Shares Annex SL withISO 9001, ISO 22301, ISO 27701, ISO 42001
Relevant toAll industries, all sizes

Compliance requirements

Key requirements of ISO 27001:2022

ISO 27001 is structured around 10 clauses (4-10 are mandatory) and 93 Annex A controls across four themes. Clauses 4 to 10 follow Annex SL, the common structure ISO uses across its management system standards, which is why an organisation already certified to ISO 9001 or ISO 22301 starts with a large part of the management system, the internal audit programme and the management review already in place.

Context of the Organisation

Understanding internal and external issues, interested parties, and the scope of the Information Security Management System (ISMS).

Leadership & Commitment

Top management must demonstrate commitment to the ISMS, establish an information security policy, and assign roles and responsibilities.

Risk Assessment & Treatment

Identify information security risks, assess likelihood and impact, and implement appropriate controls from Annex A to treat those risks.

Annex A Controls

ISO 27001:2022 contains 93 controls across four themes: Organisational, People, Physical, and Technological, selected based on your risk treatment plan.

Statement of Applicability

A formal document listing all Annex A controls, whether each is applicable, and justification for inclusions and exclusions.

Internal Audit & Management Review

Regular internal audits and management reviews to ensure the ISMS remains effective, appropriate, and aligned with business objectives.

Audit process

From gap analysis to certification

Netru manages the complete ISO 27001 certification journey, from initial assessment through to certification body liaison.

01

Gap Analysis

We assess your current security posture against ISO 27001:2022 requirements, producing a prioritised remediation roadmap.

02

ISMS Design

Your compliance manager designs the ISMS scope, policy framework, and risk methodology tailored to your organisation.

03

Controls Implementation

We implement the required Annex A controls, draft all required documentation, and build your evidence library.

04

Internal Audit

A formal internal audit is conducted to verify the ISMS is operating effectively before the external certification audit.

05

Stage 1 Audit

The certification body reviews your ISMS documentation and confirms readiness for the Stage 2 audit.

06

Stage 2 Audit

The certification body conducts an on-site (or remote) assessment of your ISMS in practice. Netru manages the entire process.

07

Certification

Upon successful completion, you receive ISO 27001 certification, valid for three years with annual surveillance audits.

How Netru delivers it

Lead auditor certified. End-to-end delivery.

Our team holds ISO 27001 lead auditor certifications. We design your ISMS, implement controls, conduct your internal audit, and manage the certification body relationship, so you can focus on your business.

Talk to our team
Dedicated compliance manager with ISO 27001 lead auditor certification
Full ISMS design, documentation, and policy suite
Risk register and Statement of Applicability (SoA)
Annex A controls implementation and evidence collection
Internal audit conducted by Netru
Certification body liaison and audit management
Annual surveillance audit support and continuous improvement

Before you talk to anyone

Free tools and further reading

Free checklistISO 27001 readiness checklist
InsightISO 27001 certification: a practical guide
ToolWork out which frameworks apply to you
ToolCompare this against every other scheme