The arms companies

The companies investigated are the world's top eleven arms companies (by military revenue) plus six other UK-headquartered arms companies that rank inside the world's top 100. These are taken from www.defensenews.com.

The number in front of the company name is the world ranking by military revenue and the country where they are headquartered follows.

1. Lockheed Martin (US)
2. Boeing (US)
3. Northrop Grumman (US)
4. BAE Systems (UK)
5. Raytheon (US)
6. General Dynamics (US)
7. EADS (Germany/France/Spain)
8. L3 Communications (US)
9. Thales (France)
10. Halliburton (US)*
11. Finmeccanica (Italy)
17. Rolls-Royce (UK)
27. QinetiQ (UK)
40. VT (UK)
55. Cobham (UK)
66. Meggitt (UK)
79. Ultra Electronics (UK)

*Halliburton separated from subsidiary KBR, which carried out the bulk of its * military-related work, in April 2007. KBR is now a stand alone company.