CADS Design Suite 2018.1 CADS, a leading international software company specialising in civil, geotechnical and structural engineering design, analysis and detailing software, has released CADS Design Suite 2018.1. This suite softwares has a range of software solutions to allow engineers to design in concrete and steel. CADS Design Suite 2018.1 CADS Design Suite 2018.1 About CADS. CADS is a leading international software company specialising in civil, geotechnical and structural engineering design, analysis and detailing software. Our applications are used worldwide by consulting engineers, civil engineering contractors, builders, national and local governments, structural steelwork and rebar fabricators. CADS employs more than 500 staff globally and has been in business for over 40 years. There are more than 6,000 CADS customers who use over 50,000 copies of CADS software in 70 countries.