List of defense contractors

A defense contractor is a business organization or individual that provides products or services to a military or intelligence department of a government. Products typically include military or civilian aircraft, ships, vehicles, weaponry, and electronic systems, while services can include logistics, technical support and training, communications support, and engineering support in cooperation with the government.

Security contractors do not generally provide direct support of military operations. Under the 1949 Geneva Conventions, military contractors engaged in direct support of military operations may be legitimate targets of military interrogation.

In the United States, defense contracting has taken an increasingly larger role. In 2009, the Department of Defense spent nearly $316 billion on contracts.^[1] Contractors have assumed a much larger on-the-ground presence during American conflicts: during the 1991 Gulf War the ratio of uniformed military to contractors was about 50 to 1, while during the first four years of the Iraq War the U.S. hired over 190,000 contractors, surpassing the total American military presence even during the 2007 Iraq surge and 23 times greater than other allied military personnel numbers.^[1] In Afghanistan, the presence of almost 100,000 contractors has resulted in a near 1-to-1 ratio with military personnel.^[1] The surge in spending on defense services contractors that began in 2001 came to a halt in 2009, leading to the Better Buying Power initiative of 2010.^[2]^[3]

List of companies

This is a list of the world's largest arms manufacturers and other military service companies, along with their countries of origin. The information is based on a list published by the Stockholm International Peace Research Institute for 2020.^[4] The numbers are in billions of US dollars.

Rank	Country	Company name	Revenue from Defense (US$ billions)	Total Revenue (US$ billions)	% of Total Revenue from Defense
1	United States	Lockheed Martin	58.2	65.4	89%
2	United States	Raytheon Technologies	36.8	56.6	65%
3	United States	Boeing	32.0	58.2	55%
4	United States	Northrop Grumman	20.2	36.8	55%
5	United States	General Dynamics Corp.	25.8	37.9	68%
6	United Kingdom	BAE Systems	24.0	24.7	97%
7	China	NORINCO	17.8	71.0	25%
8	China	AVIC	17.0	67.9	25%
9	China	CETC	14.7	34.3	43%
10	United States	L3Harris Technologies	14.2	18.2	78%
11	EU	Airbus	11.9	56.8	21%
12	China	CASIC	12.1	37.7	32%
13	Italy	Leonardo	11.2	15.3	73%
14	France	Thales Group	9.1	19.4	47%
15	United States	Huntington Ingalls	8.3	9.4	88%
16	United States	Leidos	7.4	12.3	60%
17	Russia	Almaz-Antey	6.1	6.6	92%
18	United States	Honeywell	5.9	32.6	18%
19	United States	Booz Allen Hamilton	5.5	7.9	70%
20	China	CSGC	5.4	33.9	16%
21	Russia	United Aircraft	4.9	6.0	82%
22	United Kingdom	Rolls-Royce	4.9	15.2	32%
23	UAE	EDGE	4.8	5.0	95%
24	United States	General Electric	4.6	76.6	6%
25	France	Safran	4.5	18.8	24%
26	Japan	Mitsubishi Heavy Industries	4.5	34.7	13%
27	Germany	Rheinmetall	4.2	6.7	63%
28	Israel	Elbit Systems	4.3	4.7	91%
29	United States	CACI International	4.1	6.0	69%
30	EU	MBDA	4.1	4.1	99%
31	France	Naval Group	3.8	3.8	99%
32	France	Dassault Aviation Groupe	3.7	6.3	59%
33	Russia	United Shipbuilding Corporation	3.7	4.7	79%
34	United States	Textron	3.5	11.7	30%
35	Israel	Israel Aerospace Industries	3.5	4.2	84%
36	Sweden	Saab	3.3	3.8	88%
37	United States	Science Applications International Corporation	3.3	7.1	47%
38	Russia	Tactical Missiles Corporation	3.2	3.3	98%
39	United Kingdom	Babcock International Group	3.2	5.7	56%
40	United States	Perspecta	3.2	4.5	70%
41	United States	Amentum	3.1	3.7	83%
42	India	Hindustan Aeronautics	2.9	3.1	95%
43	United States	KBR	2.9	5.8	50%
44	Russia	United Engine Corporation	2.8	3.9	73%
45	United States	General Atomics	0.0
46	Israel	Rafael	2.6	2.7	98%
47	Italy	Fincantieri	2.7	6.7	40%
48	France	French Alternative Energies and Atomic Energy Commission (CEA)	2.6	5.8	44%
49	United States	Oshkosh Corporation	2.2	6.7	33%
50	South Korea	Hanwha Aerospace	2.3	4.5	50%