Diploma PLC is an international group of businesses supplying specialised technical products and services. We operate globally in three sectors; Life Sciences, Seals, and Controls. Life Sciences; suppliers of consumables, instrumentation and related services to the healthcare and environmental industries. Seals; suppliers of seals, gaskets, filters, cylinders, components and kits for heavy mobile machinery and industrial equipment. Controls; suppliers of specialised wiring, connectors, fasteners and control devices for technically demanding applications.