Company Profile For over a century the name Jones and Attwood has been synonymous with environmental engineering. In recent decades this has increasingly included air and gas purification systems and today, the company is a world leader in this specialised field. We also recognise that success depends on the continuous research and development of new and innovative products. It's a commitment we are proud to make to ensure we meet our customers needs - today and tomorrow. In 2005 following the sale of the water division to Dorr Oliver Eimco the Air and Gas Divison changed its name to Higgins and Hewins Ltd.