Home / Insights / Blog / What is an ISO 27001 certification and when is it used in Construction? What is an ISO 27001 certification and when is it used in Construction? Data breaches and cyber threats pose significant risks to construction firms handling sensitive project information, client data, and intellectual property. ISO 27001 offers a robust framework for managing information security risks, but how does it apply to the construction industry? This blog explains what ISO 27001 is, who uses it, why it matters, and the specific benefits it brings to construction businesses operating in an increasingly digital landscape. We’ll also share how solutions like Risk Radar helps main contractors easily see which of their supply chain members possesses an ISO 27001 certification. What is ISO 27001 ISO 27001 is an internationally recognised standard for Information Security Management Systems (ISMS). It provides a systematic approach to managing sensitive company information, ensuring it remains secure through construction risk management processes, policies, and controls. The standard covers three key aspects of information security: Confidentiality: Ensuring information is only accessible to authorised individuals Integrity: Maintaining accuracy and completeness of data Availability: Ensuring authorised users can access information when needed ISO 27001 certification demonstrates that an organisation has implemented appropriate controls to protect information assets from security threats, whether from cyberattacks, data breaches, or internal vulnerabilities. Who uses ISO 27001 Whilst ISO 27001 applies across multiple industries, it’s particularly valuable for organisations handling sensitive data. In construction, this includes: Main contractors managing client information and project documentation Subcontractors accessing confidential design files and specifications Design firms protecting intellectual property and Building Information Modelling (BIM) data Project management companies coordinating information across multiple stakeholders Construction firms working on government projects, critical infrastructure, or high-security facilities may find ISO 27001 accreditation essential for winning contracts. Is a Cyber Essential Plus Certificate and ISO 27001 certificate the same? Even though some main contractors make ask for a Cyber Essential Plus Certificate and ISO 27001 certificate in the pre-qualification process, ISO 27001 goes further: it’s an internationally recognised standard across industries, compared to Cyber Essential certificates being used more commonly for UK government contracts. Why is ISO 27001 important in Construction? The construction industry has undergone significant digital transformation. Projects now rely heavily on cloud-based collaboration platforms, digital design tools, and data-sharing systems. This shift brings efficiency gains but also exposes firms to new security risks. ISO 27001 requirements help construction businesses: Protect client data: Safeguard sensitive information about building owners, residents, and project stakeholders Secure intellectual property: Prevent unauthorised access to design files, specifications, and proprietary methods Maintain project integrity: Ensure critical documents haven’t been tampered with or corrupted Meet contractual obligations: Demonstrate compliance with client security requirements Build trust: Show clients and partners that information security is taken seriously Following the Grenfell Tower tragedy and subsequent changes to building safety legislation, the construction industry faces heightened scrutiny. Robust information security practices have become non-negotiable for firms serious about managing risk in the construction industry. When is ISO 27001 used in Construction? ISO 27001 risk management becomes particularly relevant during several project phases: Pre-qualification and tendering: Most main contractors require suppliers to demonstrate ISO 27001 certification before awarding contracts, especially on sensitive projects. Design and planning: When sharing BIM models, architectural drawings, and technical specifications across teams, ISO 27001 controls help prevent data leaks. Project delivery: Throughout construction, multiple parties access shared platforms and databases. ISO 27001 ensures appropriate access controls and audit trails are maintained (also a crucial part of the Building Safety Act‘s Golden Thread of Information). Asset handover: When transferring building information to clients or facilities managers, ISO 27001 processes protect data during transition. Ongoing operations: For firms managing building maintenance or facilities, ISO 27001 supports long-term information security. Benefits of ISO 27001 certification for construction companies Achieving ISO 27001 certification delivers tangible advantages: Enhanced competitiveness: Subcontractors can stand out in tenders by demonstrating commitment to information security. Some clients won’t consider suppliers without certification. Reduced ISO 27001 certification cost impact: Whilst initial implementation requires investment, preventing a single data breach typically saves far more than the ISO 27001 certification cost. Improved risk management: Systematic ISO 27001 risk assessment processes help identify vulnerabilities before they become problems. Regulatory compliance: Meet GDPR requirements and other data protection obligations more easily. Operational efficiency: Clear information security procedures reduce confusion and improve workflows. Client confidence: Demonstrate professionalism and reliability to clients concerned about data protection. Supply chain requirements: Align with standards increasingly expected by main contractors and public sector clients. ISO 27001 certification also complements other quality standards in construction, such as ISO 9001 and BS 99001, creating a comprehensive management system framework. Strengthening Information Security As construction projects become more complex and digitally integrated, information security can no longer be an afterthought. ISO 27001 provides a proven framework for protecting sensitive data whilst supporting business growth. Whether you’re a main contractor managing vast amounts of project information or a subcontractor accessing confidential design files, ISO 27001 certification signals your commitment to safeguarding what matters most: your clients’ trust and your business reputation. For construction firms serious about winning competitive tenders and building lasting client relationships, ISO 27001 accreditation represents a strategic investment in your future. Building a Secure Supply Chain with Risk Radar: See which suppliers have an ISO 27001 certification Risk Radar gives main contractors access to leading data sets, enabling accurate predictions of financial distress within the supply chain. Built for construction main contractors, our Risk Radar solution helps them with their supply chain risk management. For those wanting assurance their supply chain partners are managing confidential information appropriately, Risk Radar can be used to search for suppliers who possess specific certificates, including ISO 27001 certification. Filter between Cyber Essentials Plus Certificate or ISO 27001 and see if they meet your supply chain requirements. Risk Radar can also: Send early warning notifications when a supplier is at risk Help avoid costly project delays Protect your reputation from unnecessary risks Identify financial risks early to safeguard your projects. Make informed decisions with up-to-date, actionable insights. And more… Want a streamlined way to manage risk in your supply chain? Concerned if one of your suppliers have fallen into insolvency? See Risk Radar in action and protect your projects before disruption occurs Learn more BS 99001 vs ISO 9001 What’s the difference between these standards and when are they used in construction? Read more What is ISO 45001? Prioritise health and safety in your construction projects: prevent incident and meet HSE’s expectations Learn more What is ISO 14001? Learn about the internationally recognised standard for an Environmental Management System (EMS) Learn more Blog Health and Safety, SSIP, Subcontractors