List of multinational companies in Washington (2026 list)

The companies in Washington include a significant presence of government and international organizations, alongside some large private sector firms. Notable examples are the US Navy, responsible for protecting America at sea; the United States Marine Corps, providing rapid deployment of combined-arms task forces; NASA, a pioneering organization in space exploration; and The World Bank, which provides financial and technical assistance to developing countries.

A common thread among these entities is their global reach and public service orientation. Many were founded in the mid-20th century, such as the United States Department of War (1949), NASA (1958), and USAID (1961), indicating a period of significant institutional growth in Washington.

#	Company	Industry	Headquarters	Employees	Founded
1	US Navy navy.mil This company is responsible for protecting America at sea, defending freedom, preserving prosperity, and keeping the seas open and free	Armed Forces	🇺🇸 Washington	150,748	n/a
2	United States Marine Corps marines.mil Provides rapid deployment of combined-arms task forces using naval mobility for power projection on land, sea, and air.	Armed Forces	🇺🇸 Washington	78,275	n/a
3	United States Department of War war.gov A government department providing military forces to defend the country, deter adversaries, and work with allies for national security	Armed Forces	🇺🇸 Washington	68,533	1949
4	Danaher Corporation danaher.com Global life sciences and diagnostics innovator accelerating science and technology to improve human health, partnering with customers to advance life-changing science.	Medical Equipment Manufacturing	🇺🇸 Washington	53,252	1984
5	NASA - National Aeronautics and Space Administration nasa.gov A pioneering organization pushing the boundaries of space exploration, scientific discovery, and aeronautics research to benefit humanity and improve life on Earth	Aviation and Aerospace Component Manufacturing	🇺🇸 Washington	50,817	1958
6	The World Bank worldbank.org A global institution providing financial and technical assistance to developing countries to reduce poverty and promote sustainable development across various sectors	International Trade and Development	🇺🇸 Washington	44,863	1944
7	U.S. Department of State state.gov The organization is dedicated to diplomacy, managing relationships with foreign governments, promoting America's interests, and representing citizens worldwide through diplomats and professionals	International Affairs	🇺🇸 Washington	37,601	n/a
8	American Red Cross redcross.org Mobilizing volunteers and donors to provide emergency relief, blood donations, and life-saving skills training for communities worldwide.	Non-profit Organizations	🇺🇸 Washington	33,900	n/a
9	ibex ibex.co Provides global business process outsourcing, digital marketing, and customer engagement solutions using advanced technology and a large workforce.	Outsourcing and Offshoring Consulting	🇺🇸 Washington	25,670	n/a
10	Xylem xylem.com Global provider of advanced technologies and services focused on water and wastewater management, conservation, reuse, and environmental return.	Industrial Machinery Manufacturing	🇺🇸 Washington	19,290	n/a
11	USAID usaid.gov This organization works to end global poverty and support resilient, democratic societies by promoting economic prosperity, democracy, health, education, and humanitarian assistance worldwide	International Affairs	🇺🇸 Washington	16,196	1961
12	International Brotherhood of Electrical Workers (IBEW)ibew.org A union representing over 775,000 members in various skilled occupations, negotiating collectively for wages, benefits, and rights in the US and Canada	Construction	🇺🇸 Washington	13,887	1891
13	IFC - International Finance Corporation ifc.org An international organization supporting private sector development in developing countries by providing financial resources, expertise, and forging partnerships for sustainable growth	Financial Services	🇺🇸 Washington	10,688	n/a
14	FTI Consulting fticonsulting.com Global expert firm providing crisis management, transformation consulting, and strategic solutions to organizations facing complex business challenges worldwide.	Business Consulting and Services	🇺🇸 Washington	10,452	1982
15	Georgetown University georgetown.edu Major international research university with student-centered programs in Washington DC, Doha Qatar, and global locations, rooted in Jesuit tradition.	Higher Education	🇺🇸 Washington	10,180	1789
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16	National Geographic nationalgeographic.com A multimedia destination sharing stories in science, exploration, and adventure, dedicated to funding scientists, explorers, and conservationists for over 135 years	Book and Periodical Publishing	🇺🇸 Washington	9,247	n/a
17	Peace Corps peacecorps.gov An international service organization sending Americans abroad to work with communities in education, health, economic development, agriculture, environment, and youth development	International Affairs	🇺🇸 Washington	8,068	1961
18	Inter-American Development Bank iadb.org Long-term financing, research, policy advice, and technical assistance for economic and social development in Latin America and the Caribbean.	International Trade and Development	🇺🇸 Washington	8,048	1959
19	International Monetary Fund imf.org The company promotes global economic health by ensuring monetary system stability, providing advice, financing, and training to countries worldwide	International Trade and Development	🇺🇸 Washington	7,845	1945
20	Hogan Lovells hoganlovells.com Global team of 2,600+ lawyers providing innovative legal solutions for major industries worldwide, with a focus on diversity, community impact, and business strategy alignment	Law Practice	🇺🇸 Washington	7,724	1899
21	Jones Day jonesday.com Provides comprehensive legal services worldwide through a large network of lawyers collaborating across multiple disciplines and jurisdictions.	Law Practice	🇺🇸 Washington	6,417	1893
22	American University american.edu A global education leader in the heart of the US capital, emphasizing social responsibility, diversity, and public service with prestigious faculty	Higher Education	🇺🇸 Washington	6,149	1893
23	United States Department of the Air Force af.mil A military department of the US Department of Defense that oversees the organization of the United States Air Force and United States Space Force	Armed Forces	🇺🇸 Washington	5,392	1947
24	Chemonics International chemonics.com An international development company with 4,000 specialists globally, focusing on various sectors like agriculture, governance, health, and supply chain solutions	Professional Services	🇺🇸 Washington	3,985	1975
25	Consilio LLC consilio.com Offers eDiscovery, document review, flexible legal talent, legal advisory, and transformation consulting services to law firms and corporations globally.	Law Practice	🇺🇸 Washington	3,639	n/a
26	Special Olympics specialolympics.org Organisation dedicated to providing year-round sports training and competition for individuals with intellectual disabilities, promoting physical fitness, courage, joy, and community inclusion	Non-profit Organizations	🇺🇸 Washington	3,390	n/a
27	Cogent Communications cogentco.com Provides high-quality Internet, Ethernet, and Colocation services to enterprises worldwide through a vast all-optical IP network.	Telecommunications	🇺🇸 Washington	2,890	1999
28	Generation generation.org The company is dedicated to preparing, placing, and supporting individuals in life-changing careers while advocating for increased opportunities for everyone	Non-profit Organizations	🇺🇸 Washington	2,885	n/a
29	Palladium: Make It Possible thepalladiumgroup.com Collaborates with governments, businesses, and communities to design and implement large-scale programs tackling climate, conflict, and inequality worldwide.	Business Consulting and Services	🇺🇸 Washington	2,845	1965
30	The Carlyle Group carlyle.com Global investment firm deploying private capital across private equity, credit, and AlpInvest segments to fuel growth for companies and performance for investors.	Financial Services	🇺🇸 Washington	2,838	n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

List of multinational companies in Washington

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