Halma plc is a British multinational technology and engineering company headquartered in Amersham, founded in 1984. The company specializes in providing innovative solutions in the areas of safety, health, and the environment. Halma develops and sells a wide range of products and technologies focused on improving quality of life and protecting health, including devices for air and water quality monitoring, hygiene systems, and medical equipment. The company operates globally, with its products used in industries such as healthcare, environmental protection, and other sectors.