Roke Manor Research (founded by Plessey in 1956, and owned since 2010 by Chemring) at Roke Manor at Romsey Extra developed the Hawk-Eye system in 2001. Cannon Technologies next to the railway in the west of New Milton make computer ancillary equipment and data centres. The Ordnance Survey have a new headquarters (previously further east in Southampton before 2011) at Nursling and Rownhams, off the M271 Nursling Interchange.