Ricardo plc is a holding company engaged in engineering and strategic, technical and environmental consultancy business. The Company's operating segments include Technical Consulting and Performance Products. Its Technical Consulting segment is engaged in the delivery of engineering programs and technology projects, together with environmental and management consultancy services. The Technical Consulting segment also generates income from independent assurance services provided through its rail business. Its Technical Consulting segment includes engines, vehicle systems, driveline and transmission systems and test services, among others. Its Performance Products segment is engaged in manufacturing, assembly, software sales and related services. Its Performance Products segment includes manufacturing and software and also develops and sells licenses for a portfolio of computer-aided engineering software products. It operates in the United Kingdom, Germany, China and the United States.