A subsidiary of Elkridge-based GP Strategies Corp., which provides sales, technical, and performance training and development, said Thursday it bought Marton House PLC of Britain for an undisclosed amount. GP Strategies paid cash for Marton House, which generated more than $4 million in revenue last year. Marton House, established in 1986, bills itself on its Web site as a leading supplier of outsourced training and e-learning in Britain.

- Gus G. Sentementes