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We are built on trust: our accreditations and memberships

At IDH, engineering excellence is more than just a goal; it’s built into everything we do. That’s why we hold ourselves to the highest standards through a range of respected accreditations and memberships. These aren’t just badges on the wall, they’re an important part of our culture, guiding how we think, work, and deliver across every project. 

Our certifications and membership certificates help us stay accountable, safe, innovative, and client focused. 

 ISO 9001:2015  

Quality isn’t an add-on at IDH, it’s our foundation. ISO 9001:2015, the internationally recognised quality management standard, gives us a robust framework for consistent delivery and continuous improvement. It ensures our processes remain sharp, adaptable, and always evolving, so our clients get the best, every time. 

Constructionline Gold and Builders Profile  

As Gold members of Constructionline and verified on Builders Profile, we make it simple for clients to assess our credentials quickly and with confidence. From health and safety to financial stability, our pre-qualified status speeds up procurement and reassures clients that we’re ready to deliver from day one. 

SSIP Acclaim  

Our Acclaim accreditation via the SSIP framework speaks volumes about our safety-first approach. We don’t treat health and safety as a box-ticking exercise. Whether for temporary works or permanent structures, we prioritise safe outcomes across the board. 

RISQS  

Working in the rail sector demands rigorous compliance. Our RISQS verification proves we’re up to the challenge. It confirms we have the expertise, systems, and processes to design safe, effective, and regulation-ready solutions for complex rail environments –helping to keep the UK’s railways running smoothly. 

 

CIRAS  

Safety and well-being are non-negotiable at IDH, particularly in the rail sector. Our membership with CIRAS (Confidential Incident Reporting and Analysis System) gives our rail team a safe, confidential space to raise concerns. It strengthens our culture of openness, accountability, and continual safety improvement. 

Cyber Essentials  

In an increasingly digital world, safeguarding data is a critical part of all businesses. Our Cyber Essentials certification proves we have the necessary controls to protect against common cyber threats. Whether it’s sensitive client information or technical documentation, we treat data with the utmost care. 

Institution of Civil Engineers (ICE)  

Our people are our greatest asset. That’s why we’re proud to have chartered and incorporated engineers on our team, registered with the Institution of Civil Engineers. As an ICE approved employer, we go a step further, actively supporting our engineers’ development through structured training and mentoring, so they continue to deliver excellence at every stage of their careers. 

ICO Registered  

We’re committed to responsible data management. Being registered with the Information Commissioner’s Office (ICO) confirms we comply with UK GDPR and approach data handling with integrity. It’s just one more way we show our commitment to doing things properly. 

 

Temporary Works Forum  

As members of the Temporary Works Forum (TWf), we stay informed on the latest guidance, innovations, and risks in temporary works. This insight shapes how we design scaffolding, formwork, falsework, and hoarding; so that temporary structures are safe, efficient, and built on current best practices. 

NASC  

Scaffold design requires precision, safety, and practicality. We follow guidance from the National Access and Scaffolding Confederation (NASC), the industry standard-bearer for safe and compliant access solutions. It’s a benchmark that ensures our designs are ready for any challenges. 

Construct  

As members of Construct, we stay at the forefront of concrete technology and design. It keeps our engineering fresh, relevant, and aligned with modern construction methods, that way our clients benefit from the latest thinking in concrete solutions. 

At IDH, these accreditations and memberships don’t just validate our work, they strengthen it. They help us maintain high standards, encourage continuous improvement, and foster a culture where safety, quality, and innovation are second nature. 

For our clients, it means every project is underpinned by robust processes, talented people, and a trusted reputation, so you can build with confidence. 

Certified. Trusted. IDH.