PARIS — Satellite ground equipment manufacturer ETL Systems of Britain on Aug. 1 said it is doubling the size of its U.K. headquarters and increasing staff by 25 percent within the next two years on the back of revenue increases averaging 20 percent in the past five years.

Madley-based ETL, which is located near the BT Madley Satellite Teleport, said revenue for the year ending April 30 was 9.5 million British pounds ($16 million) and that its new facility will provide room for expansion. The company currently employs 75 people there.

ETL, which has offices in Herndon, Virginia, and in the United Arab Emirates, generates 80 percent of its revenue from customers outside Britain, more than a third of that in North America.

ETL is one of several space hardware and services companies that have created offices or expanded existing facilities in Britain in the past two years. The British government has been raising its space profile with increased spending, particularly on applications for satellite telecommunications, Earth observation and space-based positioning, navigation and timing.

Peter B. de Selding was the Paris bureau chief for SpaceNews.