| Year | Detail |
| 1890 |
Harris Brothers Invent First Automatic Printing Press Feeder |
| 1895 |
The Harris Automatic Press Company incorporates and goes into business Dec. 23, 1895. |
| 1897 |
The first automatic press, called the E-1, ships to Brooks Printing in November 1897. |
| 1901 |
Victor Talking Machine was developed. |
| 1912 |
The Thaw Telescope was designed and built, The lens of this telescope was designed for photographic use. |
| 1926 |
The Harris Automatic Press Companies merges with Seybold Machine Company of Dayton, Ohio and the Premier-Potter Company of Derby, Connecticut. The name of the company changes to Harris-Seybold-Potter. |
| 1931 |
Company Introduces First Four-Color Offset Printing. |
| 1935 |
Developed the first Practical Microwave Scanning Radar. |
| 1940 |
The first Electron Microscope was developed. |
| 1946 |
Harris Changes Name to Harris-Seybold Company. |
| 1949 |
The company acquires Farnsworth Radio and TV Corporation. |
| 1950 |
Radiation, Inc. opens in Melbourne, Florida, providing miniaturized electronics instrumental in weather and communications satellites . |
| 1954 |
Company Introduces Airborne Reconnaissance System and establishes the first environmental laboratory to test electronics in simulated space conditions. |
| 1960 |
Developed the first Command, Control Communications for the U.S. Air Force Minuteman Intercontinental Ballistic Missile (ICBM) System in Camden, New Jersey. |
| 1967 |
Harris-Intertype merges with Radiation Inc., establishing a print and electronics company and forming the foundation of the modern company. |
| 1969 |
The company acquires RF Communications, which developed the first manpack radio in 1967 to provide warfighters with advanced mobile communications. |
| 1974 |
U.S. Navy implements company-developed system that uses ultra-thin glass fiber to send 20 million bits of data per second. |
| 1978 |
Company Technology Launched Onboard First GPS Satellite. |
| 1983 |
The company sells its remaining printing equipment operations and completes the shift to become a 100 percent electronics company. |
| 1984 |
Developed First Radiation-Hardened Microprocessor. |
| 1987 |
Introduced First Digital Trunking System For Public Safety. |
| 1990 |
Partnered with Boeing to upgrade Integrated Defensive Electronic Countermeasures (IDECM) capabilities to address advanced threats to the F/A 18 Super Hornets. |
| 1993 |
Introduced First Falcon Manpack Tactical Radios. |
| 1997 |
Introduced Voice over Internet Protocol (VoIP) to the public safety market, with over-the-air programming and software upgrades. |
| 2001 |
Provided Onboard Communications for International Space Station. Space Shuttle Atlantis delivers an Internal Audio System (IAS) and an Internal Video Distribution Subsystem (IVDS) to the International Space Station as part of its fiber-optic communications network. |
| 2004 |
Developed the industry's first P25 infrastructure with multiple third-party radios, first end-to-end IP P25 networks and first full-duplex TDMA vehicular repeater. |
| 2007 |
The company supplies the imaging payload for WorldView-1, the first high-resolution commercial imaging satellite to capture one-half meter resolution. |
| 2007 |
The company acquires EDO Corporation, adding capabilities to design and develop secure and smarter aerospace and defense systems for the U.S. military. |
| 2008 |
It has introduced the first multi-band Land Mobile Radio (LMR) for federal agencies. |
| 2010 |
Designed and introduced the Unity Family of powerful multi-band, software-defined radios created for federal, state and local public safety agencies. |
| 2013 |
Expanded maritime leadership by providing improved broadband communications services onboard 100 Carnival Cruise ships. |
| 2015 |
Harris Acquires Exelis Largest Acquisition in Company History. Introduced World's Smallest, Full-Spectrum, LTE-Capable Radio. |
| 2018 |
The company was selected to connect 2.9 million miles of India's airspace through the modernization of their air traffic infrastructure. |
| 2019 |
L3Harris Technologies announces the successful completion of the merger between Harris Corporation and L3 Technologie. |
| 2020 |
L3Harris offered its BeOn software application for free to healthcare and public safety workers, allowing users to turn their smartphones, laptops and other devices into an encrypted public safety radio for immediate communications to individuals or large talk groups. |
| 2023 |
It has completed its acquisition of Aerojet Rocketdyne, forming a fourth business segment at the company. |
| 2024 |
L3Harris Technologies and Palantir Technologies Inc. announced a strategic partnership to propel advanced technology development and accelerate L3Harris’ digital transformation. |