iota (formerly Asbestos & Legionella Control Services) is a family owned and operated business based in Portadown, Northern Ireland providing services throughout Ireland and the United Kingdom. Our Story Asbestos Control Services (ACS) was established in 2013 by brothers David and John Jameson. Originally the company operations were limited to contractor services such as facefit testing and equipment testing but due to client interest we expanded our services to include areas of our vast experience. Asbestos Control Services have since developed into our service range to incorporate not only Asbestos related services but Legionella and water hygiene. In 2018 our business re branded into iota, a multi service consultancy and laboratory services company striving for excellence in all fields in which we operate.