B&Q and Draper Tools are based in Chandler's Ford, also Pips Technology (owned by Federal Signal Corporation) who make ANPR cameras. Prysmian Cables & Systems, who make high-tension electric cables (for offshore windfarms), communication cables and fire-resistant cable, are off the B3037 in Eastleigh, next to a rail servicing plant and the River Itchen. Bacardi-Martini and London Camera Exchange are in Winchester and four miles (6 km) north-west, Arqiva (broadcasting infrastructure, at the former technical division of the IBA) are based in Crawley, Hampshire. IAC UK, an acoustics company, is off the Winnall Interchange (M3) north of Winchester. The Adjutant General's Corps HQ (former Royal Army Pay Corps) is at Worthy Down Camp off the A34 north of Winchester at Kings Worthy, since 2012 the home of the Defence School of Personnel Administration. Hyland Edgar Driver, the landscape architect for the Olympic Park is on the B3354 in Colden Common, west of Winchester. To the north-west, the Leckford Estate, with Longstock Park, next door provides much of the milk, mushrooms, fruit, honey and free-range chicken for Waitrose; John Spedan Lewis, founder of John Lewis, lived there until his death in 1963.