Diploma businesses provide specialist products and services for a wide range of industries. We supply the small but critical parts and tools that engineers, factories and hospitals need to keep things running smoothly.
Advanced technologies for critical applications in aerospace, energy, infrastructure, medical and rail. Our Controls businesses provide wires and cables, connectors and automation parts for use in high-tech industries and equipment, from aircraft and F1 cars to data centres and medical devices.
Reliable, high-performance sealing solutions that protect equipment, power innovation and drive uptime across industries. Our Seals businesses provide gaskets, hydraulic hoses and fittings for maintaining heavy machinery and vehicles, from tractors to wind turbines.
Smart solutions that advance diagnostics, drive better patient outcomes and improve lives. Our Life Sciences businesses provide medical instruments, diagnostics equipment and lab products for use by doctors and scientists.
We deliver more than just products. Value-add is at the heart of our customer relationships. From bespoke solutions and responsive customer service, to technical support and supply chain management, our businesses deliver value-add solutions that make customers' lives easier.
Here are some of the ways Diploma businesses add value for customers
Diploma's Half Year Results 2025 - CEO's message
20 May 2025 - Our Group CEO, Johnny Thomson, shares the key messages from our Half Year Results.
Download our latest Annual Report for the year ended 30 September 2024
Diploma has a strong track record of delivering sustainable, compounding financial performance. We believe that this comes from a balance of ambition with discipline.
Building high-quality, scalable businesses for sustainable organic growth
We are committed to tackling climate change, empowering our people and creating a positive impact on society and the environment.
Our colleagues are the foundation of our success. Each of our businesses has its own unique culture and values. However, our Group values reflect the shared beliefs and behaviours of the Diploma Group.