Storm Interface - Storm Interface - The company’s purpose: To develop, manufacture and market rugged and responsive data entry devices for use in a wide range of industrial and public applications. Keymat Technology Ltd. was formed in March 1986 as a private UK registered company. It is headquartered, in its own freehold premises, west of London, just four miles north of Heathrow Airport. The company’s production division ‘Storm Manufacturing’ is based in Maldon, on England’s east coast and its North American sales division is located in Glen Ellyn, Illinois just outside Chicago. The core switching technologies developed by the company are protected by international patents and patent applications. These technologies continue to be developed and incorporated in new, innovative products to augment and complement the established product range. This strategy of continued development has enabled the company to market a wider range of data entry products under a single powerful trademark “STORM”. These are premium brand products reflecting the exacting engineering and performance standards demanded in today's military, medical, industrial and public environments.