ANNAPOLIS, JAN. 8 -- Scicon International, a European computing services firm, will move its international headquarters to Bethesda from London, a move inspired by Maryland's Trade Mission to Europe last May.

The decision was announced jointly by Gov. William Donald Schaefer and Scicon Chief Executive Bryan Marson-Smith.

"Presentations from Gov. Schaefer and his staff on his European tour of 1987 and discussions with Don Hutchinson {executive director of Maryland Economic Growth Associates} finally determined our decision to locate Scicon's headquarters in Bethesda," Marson-Smith said.

Scicon now employs 170 people in Maryland and is expected to double that number in less than five years.

Marson-Smith said his firm, the second largest of its kind in Europe, had been looking to relocate its international headquarters to the East Coast from London, but it was only after seeing efforts from Maryland officials that Scicon decided on Maryland.

With strong operations in the United Kingdom, France, West Germany and the United States, the company's 1986 gross revenue exceeded $280 million. Marson-Smith predicted that figure will jump to $600 million in the next five years.

Schaefer called it "the successful conclusion of a joint effort between the state of Maryland and the private sector, which has resulted in a major worldwide company locating its international headquarters in Maryland."

Scicon International provides the applications software used to operate computer hardware. Scicon also offers consulting services and facilities management.