Analogue Holdings Limited provides electrical and mechanical (E&M) engineering services to public and private sectors in Hong Kong, Mainland China, Macau, the United Kingdom, and internationally. It operates in four segments: Building Services; Environmental Engineering; Information, Communications and Building Technology (ICBT); and Lifts & Escalators. The Building Services segment offers E&M building services including design, installation, testing and commissioning, and maintenance of HVAC, fire service, plumbing and drainage, and electrical and extra low voltage (ELV) systems. The Environmental Engineering segment designs, constructs, operates, and maintains environmental engineering systems for treating sewage, water, solid waste, sludge, and gas. The ICBT segment designs, installs, and services intelligent systems, information and communications (ICT) systems, and building technology systems. The Lifts & Escalators segment designs, supplies, installs, repairs, and maintains lifts and escalators under the Anlev Elex name. The company also supplies E&M materials and equipment; provides data center and critical facilities infrastructure support services; manufactures and sells hardware, software, and electronic systems; develops, produces, and markets automated movement systems; installs, maintains, and services travellators; manufactures, designs, and sells moving walkways; and provides property management services. Founded in 1977, Analogue Holdings Limited is headquartered in Kwai Chung, Hong Kong, and is a subsidiary of Arling Investment Limited.