Diploma Plc engages in the supply of technical products and services. The principal activity of the Company is the supply of specialized technical products and services. The firm operates through four segments: the United Kingdom, Rest of Europe, United States of America, and Rest of world. The firm operates through three sectors: Controls, Seals, and Life Sciences. The Controls Sector businesses supply specialized wiring, cable, connectors, fasteners, control devices and adhesives for a range of technically demanding applications. The Seals businesses supply sealing solutions and fluid power products to support aftermarket repairs, original equipment manufacturer (OEM) partners and maintenance, repair, and overhaul projects. The Life Sciences businesses supply service equipment, consumables and instrumentation for surgery, diagnosis of disease, and critical care support. The firm's subsidiaries include HKX, Inc., Gremtek SAS, Acernis Medical Inc., and others.