Question: What country was the company that makes the Hydraulic Launch Assist founded in?

Context articles: Tech Safe Systems
Hydraulic Launch Assist
Independence-X Aerospace
Airborne Launch Assist Space Access
Fruehauf Trailer Corporation
Ventions
Rocket sled launch
Oilgear
Eaton Corporation
Kanonen

Tech Safe Systems Ltd. an Outreach company is a Norfolk-based company that are specialists in the design, engineering and manufacturing of launch and recovery systems (LARS), control cabins, workshops for ROVs , and electric and hydraulic winches, most commonly in the deep water industries.
Hydraulic Launch Assist is a hydraulic hybrid regenerative braking system produced by the Eaton Corporation.
Independence-X Aerospace is a Malaysian aerospace company.
 Independence-X Aerospace or better known as IDXA is currently developing the state of the art rocket launcher technology that could reduce launch cost significantly.
 IDXA would be providing future commercial rocket launch services into LEO (Low Earth Orbit).
 The rocket launcher is known as the DNLV (Dedicated Nano Launch Vehicle) to be commercial ready by 2023, which was featured in NASA "Small Spacecraft Technology: State of the Art" December 2015 report.
 The DNLV is capable of providing dedicated launch services to small satellites and cubesat owners for insertion into their intended orbit and inclination.
 IDXA is looking at frequent launches from near equatorial launch site for at least twice a month for the first year (24 launches / year).
 DNLV is capable of delivering payloads of 200 kg to a 500 km Sun-synchronous orbit.
 IDXA was also an official team of the Google Lunar X Prize since 2008 until 2016, then later partnered with remaining team Synergy Moon from the USA.
 IDXA is currently developing a lunar lander probe named as SQUALL (Scientific Quest Autonomous Lunar Lander) which will aim to complete the goals of the Google Lunar X Prize, and to conduct scientific discovery of other rare minerals and search for water on the surface of the moon.
 Besides its Moon mission, a Mars mission in currently being planned for post the year 2020, where IDXA is developing a bio-mimetic flapping winged micro aerial vehicle (B-MAV) robotic dragonfly to scout the Martian Surface to assist NASA's future Mars rover from the rough rocky Martian terrain to perform ground exploration much easily by providing avoidable obstacle path.
 IDXA is also developing a reentry capsule in the pipeline for future commercial missions.
Airborne Launch Assist Space Access, or DARPA ALASA is a canceled program of the US defense technology agency DARPA "designed to produce a rocket capable of launching a 100-pound satellite into low Earth orbit for less than $1 million."
 The program was conceived, then announced in 2011, and funded development work began in 2012.
 The project was terminated in late 2015.
Fruehauf Trailer Corporation, previously Fruehauf Trailer Company (1918–1963) and Fruehauf Corporation (1963–1989), was an American company engaged in the manufacture and sale of truck trailers, and other machinery and equipment, with headquarters located in Detroit, Michigan.
 It was founded in 1918 in Detroit, after August Fruehauf created the semi-trailer and launched a new industry.
 The Fruehauf trailer company introduced revolutionary inventions to trucking and transportation with hydraulic dump trailers, bulk tanker trailers, and automatic fifth wheel coupling among their over one thousand patents, including the shipping container in 1956.
 Expanding across the country, Fruehauf had 16 plants and over 80 distributorships for parts and service.
 Globally, the company expanded into Europe, South America and Asia.
 Following a proxy battle in the late 1980s the company filed for bankrupt protection in 1997.
 International divisions became independent, U.S. subsidiaries like Kelsey Hayes, Pro-Par, Budd Wheels and Hobbs were sold; Wabash National acquired the crippled company in 1997.
Ventions, LLC is a launch vehicle development company based out of San Francisco, California, that has been working to develop pump-fed, liquid bipropellant propulsion engines for DARPA and NASA.
 Most recently, Ventions was a technology provider for DARPA's Airborne Launch Assist Space Access (ALASA) program, and is currently working on the Small Air Launch Vehicle to Orbit (SALVO) program, a pathfinder air-launched vehicle for placement of cubesat sized payloads into Low Earth Orbit.
A rocket sled launch, also known as "ground based launch assist", "catapult launch assist", and "sky ramp launch", is a proposed method for launching space vehicles.
 With this concept the launch vehicle is supported by an eastward pointing rail or maglev track that goes up the side of a mountain while an externally applied force is used to accelerate the launch vehicle to a given velocity.
 Using an externally applied force for the initial acceleration reduces the propellant the launch vehicle needs to carry to reach orbit.
 This allows the launch vehicle to carry a larger payload and reduces the cost of getting to orbit.
 When the amount of velocity added to the launch vehicle by the ground accelerator becomes great enough, single-stage-to-orbit flight with a reusable launch vehicle becomes possible.
Oilgear Company is an American manufacturer of fluid power and hydraulic equipment, including pumps, valves, motors, meters and other components, as well as integrated systems, headquartered in Traverse City, Michigan.
 It was founded in 1921 in Milwaukee, Wisconsin, as an offshoot of hydraulic power work being done for Bucyrus-Erie, manufacturing a line of hydraulic presses, and successfully weathered the Great Depression, gradually expanding its product line, including being one of the first companies to use microprocessors with hydraulics, and in the early 1980s began expanded its research and development budgets to build complete computer-controlled manufacturing systems, buying only the memory chips.
Eaton Corporation Plc is a multinational power management company with 2016 sales of $19.7 billion, founded in the United States with corporate headquarters in Dublin, Ireland.
 Eaton has approximately 95,000 employees and sells products to customers in more than 175 countries.
Kanonen ("the cannon") was a steel roller coaster located at Liseberg amusement park in Sweden.
 Built by Intamin, the ride featured a hydraulic launch and opened in 2005.
 The tightly packed layout is the result of a limited area to house the ride.
 On December 30, 2016, Kanoen closed permanently and will be replaced by a Bolliger & Mabillard dive coaster called Valkyria.