Diploma PLC specializes in technical services. Net sales break down by activity as follows: - manufacturing of control systems (47.8%): fluid control systems, harness components, wiring and fastening systems used primarily in aerospace, defense, medicine, energy and motor sports sectors; - manufacturing of seals (35.9%): gaskets, filters, cylinders, machined parts for specialized industrial equipment, cylinder components for repair and maintenance of heavy mobile machinery and industrial equipment, etc.; - manufacturing of healthcare equipment and environmental management equipment (16.3%): medical devices for pathology laboratories, operating rooms, clinics, etc., environmental analyzers, containments and emission control systems. Net sales are distributed geographically as follows: the United Kingdom (20%), Europe (19.7%), the United States (45.9%) and other (14.4%).