Category

Engineering companies of the United States

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Northrop Grumman Corporation

American aerospace and defense technology corporation

Honeywell International, Inc.

Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building automation, industrial automation, and energy and sustainability solutions (ESS). Honeywell also owns and operates Sandia National Laboratories under contract with the U.S. Department of Energy. Honeywell is a Fortune 500 company, ranked 115th in 2023. In 2025, the corporation had a global workforce of approximately 101,000 employees. As of 2025, its chairman and chief executive offic

United Technologies Corporation

defunct American multinational conglomerate (1929–2020)

The Curtiss-Wright Corporation is an American manufacturer and services provider headquartered in Davidson, North Carolina, with factories and operations in and outside the United States. Created in 1929 from the consolidation of Curtiss, Wright, and various supplier companies, the company was immediately the country's largest aviation firm and built more than 142,000 aircraft engines for the U.S. military during World War II.

American multinational aerospace and defense conglomerate

SRI International

American scientific research institute (founded 1946)

Swift Engineering

American spacecraft engineering company

National Instruments

American industrial technology company

American engineering, procurement, and construction company.

Leidos Holdings, Inc. is an American defense, aviation, information technology, and biomedical research company headquartered in Reston, Virginia, that provides scientific, engineering, systems integration, and technical services. Founded as Science Applications International Corporation (SAIC), Leidos merged with '''Lockheed Martin's IT sector, Information Systems & Global Solutions (Lockheed Martin IS&GS'''), in August 2016 to create the defense industry’s largest IT services provider. The Leidos-Lockheed Martin merger is one of the biggest transactions thus far in the consolidation of the d

American manufacturer of residential and commercial water heaters and boilers

Astrobotic Technology

American space robotics company

Teledyne Technologies

American industrial company

Bendix Corporation

American manufacturing and engineering company (1924–1983)

Combustion Engineering

American-based multinational company

Commonwealth Fusion Systems

American company aiming to build a compact fusion power plant

Cameron International

oilfield services company

GE Hitachi Nuclear Energy

American nuclear technology company

Altair Engineering

American Multinational Company

American company

Stone & Webster

former American engineering company

company developing and delivering oil-related technology to the major manufacturing industries

Parsons Corporation

American technology-focused engineering firm

Science Applications International Corporation

American information technology and engineering services company

Donaldson Company

American manufacturing company

American fusion research company