Simon Calder

The Plessey Co. Plc is an electronics, defense, and British telecommunications company founded in 1917. The private company is based in Ilford, UK.

Techhub Europe Ltd. engages in letting and operating of conference and exhibition centres. The company was founded by Elizabeth Varley and Mike Butcher in 2010 and is headquartered in London, the United Kingdom.

Cadence Design Systems Ltd. provides electronic design and technology services. It sells and leases software and hardware products for designing integrated circuits (ICs), printed circuit boards (PCBs) and other electronic systems. The firm also provides maintenance, support and offers methodology consulting services. The company is headquartered in Bracknell, the United Kingdom.

CRFS Ltd. develops wideband radio frequency spectrum monitoring and signals intelligence systems solutions for regulatory, defense, aerospace and security agencies. It provides RFeye spectrum monitoring hardware and software systems at various price and performance levels. The firm's products include RFeye nodes, boards, arrays, ground vehicle systems, man-portable systems, mounting systems and accessories. Its applications include regulatory monitoring and management, direction finding and geolocation of emitters, remote site, perimeter and border monitoring, real-time situational awareness, threat detection and signals intelligence. The company was founded by Alistair John Massarella, Adam Robert David Cleevely and Stewart Hyde in 2007 and is headquartered in Cambridge, the United Kingdom.