CLS Holdings plc, together with its subsidiaries, engages in the investment, development, and management of commercial properties in the United Kingdom, Germany, and France. The company operates in two segments, Investment Properties and Other Investments. It also invests in a hotel and other corporate investments. CLS Holdings plc was formerly known as Hadmarn Limited and changed its name to CLS Holdings plc in June 1992. The company was founded in 1987 and is based in London, the United Kingdom. CLS Holdings plc operates as a subsidiary of Mortstedt Family Trust.