Controls

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.

Seals

Reliable, high-performance sealing and fluid power solutions that protect equipment, power innovation and drive uptime across industries. Our Seals businesses provide gaskets, hydraulic hoses and fittings for machinery and vehicles, from tractors to wind turbines.

Life Sciences

Smart solutions that advance diagnostics, drive better patient outcomes and improve lives. Our Life Sciences businesses provide medical instruments, lab products and diagnostics equipment for use in hospitals and test labs.

An essential partner

We deliver more than just products. Our customers often operate in highly regulated environments with technically demanding applications and high cost-of-failure projects that rely on critical products and processes. 

Our businesses provide expertise and technical support, bespoke solutions, supply chain management, responsive customer service and extensive product ranges. We call these 'value-add' solutions.

Handbook of Diploma Businesses

Learn more about each of our businesses, including end markets, customers, products and value-add services.

Culture

All of our businesses are different.
But, there are some common characteristics to all Diploma businesses: a strong value-add customer proposition delivered by brilliant people with strong leadership.

Why sellers choose Diploma

We're the best home for owner-managed businesses. As long-term partners to our acquisitions we preserve the legacy and values of your business and give managers the accountability and autonomy to continue to run their business.