1961-1995, manufacturer of chemicals, aerospace equipment and electronic equipment, Bethesda, United States Martin Marietta Corporation 1961 - 1995
1961-current (2010), designer; manufacturer of physical therapy/ rescue operation plastic film products, Garbsen, Germany BuW Schmidt GmbH 1961
1961-current (2008), pottery design manufacture and distribution, Staffordshire, England, English Portmerion Pottery 1961
Suppliers of advanced Assistive Technology (AT) and Telecare, 1961 - current. Possum Controls Ltd 1961