Diploma PLC is a United Kingdom-based company engaged in supplying specialized products and services. The Company operates through three segments: Life Sciences, Seals and Controls. The Life Sciences Sector businesses supply a range of medical devices, consumables, instrumentation and related services to healthcare markets. Seals Sector businesses supply a range of seals, gaskets, cylinders, components and kits used in heavy mobile machinery and specialized industrial equipment with aftermarket, original equipment manufacturer and maintenance, repair and operations (MRO) applications. The Controls Sector businesses supply specialized wiring, cable, connectors, fasteners, control devices and adhesives for a range of technically demanding applications. It also distributes aftermarket parts and repair services with a focus on robotics and computer numerical control (CNC) machines. Its subsidiaries include HB Sealing Products, Inc., HB Sealing Products Limited and M Seals UK Limited.