DOPPLER S.A. is a Greek industrial and commercial company specializing in the design, manufacturing, installation, and maintenance of elevators, elevator components, and mechanical systems. Established in 2000 and headquartered in Polykastro, Kilkis, the company operates through subsidiaries and branches across Europe and Asia. It offers end-to-end services including design, R&D, manufacturing, installation, maintenance, spare parts, IoT lift monitoring, and modernization under its patented ReNaissance® solution. The company complies with European safety and quality standards and has delivered over 20,000 elevators globally. The products traded include lifts and skip hoists, parts of lifts, skip hoists, or escalators, n.e.s. parts of machinery of heading 8428, and flywheels and pulleys, including pulley blocks.