Freefall Aerospace

Northrop Grumman Aerospace Systems, formed by the merger between Integrated Systems and Space Technology sectors of Northrop Grumman Corporation, a global security company. Northrop Grumman Aerospace Systems employs more than 20,000 staff members. It provides manned and unmanned aircraft, missiles, space systems and related advanced technologies for national security. The company develops, integrates, produces and supports spacecraft, high-energy laser systems and microelectronics. Its products are used in the areas of intelligence, surveillance, reconnaissance, communication, battle management, electronic warfare, earth observation and space exploration. Northrop Grumman Aerospace Systems is a business unit of Northrop Grumman Corporation, which provides services in the areas of electronic, information system, shipbuilding and technical support to government and commercial customers worldwide.

Founded in 2002, 4D Technology is a manufacturer of interferometer systems for the accurate measurement of optical-grade surfaces. It offers a range of laser interferometer for optical testing, astronomy, directed energy, data storage and satellite optics. The company serves the aerospace, medical, semiconductor, optical fabrication and flat-panel display markets. 4D Technology features products under the PhaseCam, FizCam, WaveCam, DiskCam and SpeckleCam models. It also provides the 4Sight data analysis software. The company offers installation and training services for measurement systems. 4D Technology also provides upgrading services for old interferometer systems. Its clients include Boeing, Raytheon Company, ITT Corporation, Ball Aerospace, Northrop Grumman Corporation, Sandia Corporation and the National Aeronautics and Space Administration.