RTX Corporation
Company History
RTX History: Founding, Growth & Key Milestones
Founded 2020 in Arlington, Virginia, United States
When was RTX founded?
RTX was founded in 2020 in Arlington, Virginia, United States by Laurence Marshall, Vannevar Bush, Charles G. Smith and Frederick Rentschler, making it 6 years old.
- Founded
- 2020
- Founding place
- Arlington, Virginia, United States
- Founders
- Laurence Marshall, Vannevar Bush, Charles G. Smith and Frederick Rentschler
- Headquarters today
- Arlington, Virginia
- Milestones documented
- 12 (1922–2026)
- Current CEO
- Christopher T. Calio
- Acquisitions
- 3
| Year | Event |
|---|---|
| 1922 | Raytheon predecessor founded |
| 1925 | Pratt & Whitney Aircraft begins |
| 1965 | Acquired Amana Refrigeration |
| 1975 | United Technologies Name Adopted |
| 1997 | Hughes Aircraft Defence Business Acquired |
| 2012 | Goodrich Acquired |
| 2018 | UTC acquires Rockwell Collins |
| 2020 | Raytheon Technologies is formed |
| 2023 | Company rebrands as RTX |
| 2024 | Christopher T. Calio becomes CEO |
| 2025 | Sales reach $88.6B |
| 2026 | Record $289B backlog |
- Where was RTX founded?
- RTX was founded in Arlington, Virginia, United States in 2020.
- Who founded RTX?
- RTX was founded by Laurence Marshall, Vannevar Bush, Charles G. Smith and Frederick Rentschler.
- When did RTX start?
- RTX was founded in 2020.
- How old is RTX?
- RTX is 6 years old as of 2026.
Founding Story
RTX traces two separate lineages. Raytheon began in 1922 in Cambridge, Massachusetts as the American Appliance Company, founded by Laurence Marshall, Vannevar Bush and Charles G. Smith, and later became a major radar maker in World War II; a Raytheon engineer, Percy Spencer, developed the microwave oven in 1945. Pratt & Whitney Aircraft was founded by Frederick Rentschler in 1925 and became the core of United Aircraft, later United Technologies. The two lines combined in April 2020.
Founders
Laurence Marshall
Laurence Marshall co-founded the American Appliance Company in 1922, which was eventually renamed Raytheon. He spearheaded the company's early massive success in producing highly reliable vacuum tubes for the booming radio market. (Exact birth year remains publicly undisclosed).
Vannevar Bush
Vannevar Bush co-founded Raytheon. As an absolutely legendary engineer and dean at MIT (and later the head of the US Office of Scientific Research and Development during WWII), he provided the absolutely critical scientific credibility and deep government connections required to secure massive defense contracts. Vannevar Bush was born in 1890.
Charles G. Smith
Charles G. Smith co-founded Raytheon. He invented the 'S tube,' an absolutely revolutionary gas-filled rectifier that completely eliminated the need for highly expensive, short-lived batteries in early radio sets, launching the company into massive profitability. (Exact birth year remains publicly undisclosed).
Frederick Rentschler
Frederick Rentschler founded Pratt & Whitney Aircraft in 1925 (which later merged to form United Technologies, now part of RTX). He was an absolutely visionary engineer who designed the legendary 'Wasp' radial engine, a remarkably reliable air-cooled engine that completely revolutionized commercial and military aviation. (Exact birth year remains publicly undisclosed).
Key Milestones
Raytheon predecessor founded
American Appliance Company, later Raytheon, was founded in Cambridge, Massachusetts.
Source: en.wikipedia.orgPratt & Whitney Aircraft begins
Frederick Rentschler founded Pratt & Whitney Aircraft and built the Wasp engine franchise.
Source: en.wikipedia.orgAcquired Amana Refrigeration
RTX acquired Amana Refrigeration. Raytheon bought appliance maker Amana Refrigeration in 1965, giving it a consumer channel for microwave ovens; the unit was later sold.
Source: en.wikipedia.orgUnited Technologies Name Adopted
United Aircraft was renamed United Technologies Corporation in 1975.
Source: en.wikipedia.orgHughes Aircraft Defence Business Acquired
Raytheon bought the defence business of Hughes Aircraft in 1997.
Source: en.wikipedia.orgGoodrich Acquired
United Technologies bought Goodrich in 2012 for about $18.4 billion.
Source: en.wikipedia.orgUTC acquires Rockwell Collins
United Technologies acquired Rockwell Collins, creating Collins Aerospace and expanding aircraft systems scale.
Source: en.wikipedia.orgRaytheon Technologies is formed
Raytheon Company and United Technologies completed their merger after UTC spun off Carrier and Otis.
Source: en.wikipedia.orgCompany rebrands as RTX
Raytheon Technologies adopted the RTX name while keeping Collins Aerospace, Pratt & Whitney, and Raytheon as operating businesses.
Source: en.wikipedia.orgChristopher T. Calio becomes CEO
Christopher T. Calio became CEO of RTX in 2024. Under Calio, sales grew to $88.6 billion in 2025 and backlog reached a record $289 billion by mid-2026.
Source: finance.yahoo.comSales reach $88.6B
RTX reported $88.6 billion in 2025 sales and a $268 billion backlog across commercial and defense work.
Source: rtx.comRecord $289B backlog
Q2 2026 sales rose 14% to $24.7 billion and RTX raised its full-year outlook.
Source: finance.yahoo.comMajor Acquisitions
Amana Refrigeration
1965Raytheon bought appliance maker Amana Refrigeration in 1965, giving it a consumer channel for microwave ovens; the unit was later sold.
Rockwell Collins
2018United Technologies acquired Rockwell Collins for about $30 billion including debt to expand its avionics, flight deck and cabin interiors business.
Raytheon Company (merger with United Technologies)
2020United Technologies and Raytheon combined in an all-stock merger of equals after UTC spun off Carrier and Otis.
Keep researching RTX
RTX Company History FAQ
When and how was RTX Corporation formed?
RTX Corporation was formed on April 3, 2020, through the historic merger of equals between industrial aerospace giant United Technologies Corporation (UTC) and defense electronics leader Raytheon Company, initially operating as Raytheon Technologies before rebranding to RTX in July 2023.
What were the historical origins of United Technologies Corporation (UTC)?
UTC traces its roots to 1929 when aviation pioneer Frederick Rentschler founded United Aircraft and Transport Corporation, uniting Pratt & Whitney, Boeing, Chance Vought, and Sikorsky, before being broken up by antitrust regulators in 1934 and evolving into United Technologies in 1975.
What were the historical origins of Raytheon Company?
Raytheon was founded in 1922 in Cambridge, Massachusetts, as the American Appliance Company by Laurence Marshall, Vannevar Bush, and Charles G. Smith, pioneering vacuum tubes, the microwave radar magnetron during World War II, and inventing the commercial microwave oven (Radarange).
What major corporate spinoffs occurred immediately prior to the 2020 merger?
To facilitate the merger of equals, United Technologies spun off its non-aerospace commercial building units—Carrier (HVAC) and Otis (elevators and escalators)—into independent publicly traded companies on April 3, 2020.
What are the three core business units that comprise RTX today?
RTX operates across three premier business units: Collins Aerospace (commercial avionics and aircraft systems), Pratt & Whitney (commercial and military jet engines), and Raytheon (missile defense, radars, and precision munitions).
Why did the company rebrand from Raytheon Technologies to "RTX" in 2023?
In July 2023, the corporation rebranded to "RTX" (its longstanding NYSE ticker symbol) to create a unified corporate identity that equally honors its commercial aerospace heritage (Pratt & Whitney, Collins) alongside its defense legacy (Raytheon).
What was the Pratt & Whitney Geared Turbofan (GTF) powdered metal issue in 2023?
In mid-2023, RTX disclosed that rare microscopic contaminants in powdered metal manufactured between 2015 and 2021 could cause premature micro-cracks in high-pressure turbine disks of PW1100G-JM engines on Airbus A320neo jets, necessitating fleet inspections of roughly 600 to 700 engines.
What was the financial impact of the GTF powdered metal inspection program?
RTX recorded a pre-tax operating charge of approximately $5.4 billion in late 2023 to compensate airline customers for grounded aircraft, accelerate engine overhauls, and replace affected turbine disks over a multi-year period.
Where is RTX's corporate headquarters located?
In 2022, RTX relocated its global corporate headquarters from Waltham, Massachusetts, to Arlington, Virginia (near Washington, D.C. and the Pentagon), positioning executive leadership adjacent to primary defense procurement customers.
Who succeeded Gregory Hayes as CEO of RTX in 2024?
Christopher T. Calio, previously President and Chief Operating Officer of RTX and former President of Pratt & Whitney, became President and Chief Executive Officer of RTX on May 2, 2024, with Gregory Hayes transitioning to Executive Chairman.
What role has RTX played in the Ukraine conflict and Middle East defense?
RTX has been a central provider of critical Western defense systems, rapidly ramping production of Patriot air defense batteries, Stinger anti-aircraft missiles, Javelin anti-tank missiles (joint venture with Lockheed Martin), and NASAMS air defense systems.
What is the scale of RTX's total order backlog?
RTX maintains an immense corporate order backlog exceeding $190 billion to $200 billion, evenly balanced between commercial aerospace multi-year airliner delivery schedules and long-term government defense contracts.
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