Energys Group Holdings Limited is a UK-based energy service company that provides end-to-end customized solutions for retrofitting existing buildings and infrastructure with energy-saving technologies to reduce CO2 emissions and operating costs. The company's core offerings include LED lighting systems with IoT-enabled wireless controls, comprehensive energy management services spanning site audits through installation and maintenance, and supplementary products such as solar photovoltaic systems, boiler optimization devices, and utility monitoring equipment, with most products manufactured by third-party suppliers according to the company's specifications. Revenue is generated primarily through project-based retrofit contracts for commercial, industrial, and government customers including universities, schools, hospitals, and electrical distributors, supplemented by direct product sales; the company typically does not have long-term recurring revenue contracts, though maintenance agreements may extend two to ten years.