Studsvik is a supplier of nuclear analysis

software Software consists of computer programs that instruct the Execution (computing), execution of a computer. Software also includes design documents and specifications. The history of software is closely tied to the development of digital comput ...

and specialised services to the international

nuclear industry Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by ...

. The company is headquartered in

Nyköping Nyköping () is a Urban areas in Sweden, locality and the seat of Nyköping Municipality, Södermanland County, Sweden, with 32,759 inhabitants as of 2017. The city is also the capital of Södermanland County. Including Arnö, the locality on the ...

, Sweden, and has five divisions: Sweden, United Kingdom, Germany, the United States, and Global Services. There are 1,100 employees in 8 countries. The company's shares are listed on the

Nasdaq OMX Stockholm Nasdaq Stockholm, formerly known as the Stockholm Stock Exchange (), is a stock exchange located in Frihamnen, Stockholm, Sweden. Founded in 1863, it has become the primary securities exchange of the Nordic countries. As of March 2021, a total ...

. Studsvik offers advanced technical services to the international

nuclear power Nuclear power is the use of nuclear reactions to produce electricity. Nuclear power can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions. Presently, the vast majority of electricity from nuclear power is produced by ...

industry in areas including fuel analysis software, waste treatment, decommissioning, engineering and services, and operating efficiency. The company was founded in

Stockholm Stockholm (; ) is the Capital city, capital and List of urban areas in Sweden by population, most populous city of Sweden, as well as the List of urban areas in the Nordic countries, largest urban area in the Nordic countries. Approximately ...

in 1947, as AB Atomenergi, to develop and operate nuclear power stations in Sweden. Originally it was 57% government-owned; during the 1960s, the government acquired the entirety of the shares, but then in the 1970s, government funding was reduced and the company became entirely industry-owned and changed its name to Studsvik Energiteknik AB."History"
studsvik.com. Studsvik is the name of the property east of Nyköping, where the business had moved during the 1960s. In 2005, Studsvik's two research reactors, R2 (50 MW) and R2-0 (1 MW), were decommissioned. There was also a third research reactor in Studsvik called FR-0, which was a zero-power fast reactor with low power output. It was operated 1964–1971 and is now dismantled. In the 1990s and 2000s, the company acquired the German SINA Industrieservice GmbH; the nuclear power division of the Norwegian Scandpower AS; the German Industrieanlagen Fritz & Marx; the British Environmental Remediation Services Ltd.; the ISS international health physics group; the American RACE LLC; the German Dr Fary GmbH & Co KG and the English Alpha Engineering Ltd. Studsvik has a

radioactive waste Radioactive waste is a type of hazardous waste that contains radioactive material. It is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, nuclear decommissioning, rare-earth mining, and nuclear ...

processing facility in

Erwin, Tennessee Erwin is a town in and the county seat of Unicoi County, Tennessee, United States. The population was 6,083 at the 2020 census. It is part of the Johnson City metropolitan area, which is a component of the " Tri-Cities" region. History The tow ...

in the US, which opened in 2000. The facility operates in partnership with

Waste Control Specialists Waste Control Specialists LLC (WCS) is a treatment, storage, & disposal company dealing in radioactive, hazardous, and mixed wastes. Developed and controlled by Texas billionaire investor Harold Simmons until his death at the end of 2013, the comp ...

in Andrews County,

Texas Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...

. With Washington Group Inc., Studsvik co-owns THOR Treatment Technologies, LLC. Studsvik also operates a facility in

Memphis, Tennessee Memphis is a city in Shelby County, Tennessee, United States, and its county seat. Situated along the Mississippi River, it had a population of 633,104 at the 2020 United States census, 2020 census, making it the List of municipalities in Tenne ...

President's Island President's Island is a peninsula on the Mississippi River in southwest Memphis, Tennessee. The city's major river port and an industrial park are located there. History The name ''President'' or ''President's'' Island appeared as early as 1801 ...

, which is in the

Mississippi River The Mississippi River is the main stem, primary river of the largest drainage basin in the United States. It is the second-longest river in the United States, behind only the Missouri River, Missouri. From its traditional source of Lake Ita ...

. In January 2008, Studsvik obtained a licence for a radioactive metal recycling plant near

Sellafield Sellafield, formerly known as Windscale, is a large multi-function nuclear site close to Seascale on the coast of Cumbria, England. As of August 2022, primary activities are nuclear waste storage, nuclear waste processing and storage and nucle ...

in England. Studsvik's metal-recycling facility, designed to assist the

Nuclear Decommissioning Authority The Nuclear Decommissioning Authority (NDA) is a non-departmental public body of the Department for Energy Security and Net Zero (formerly the Department for Business, Energy and Industrial Strategy) formed by the Energy Act 2004. It evolved from ...

's National LLW Strategy, opened in September 2009. Decontaminating metallic waste both greatly reduces the quantity of waste requiring to be disposed of at the LLW Repository, and recovers valuable metal. Studsvik is the global leader in fuel vendor-independent software for reactor analysis. Studsvik software has been used throughout the world for

light water reactor The light-water reactor (LWR) is a type of thermal-neutron reactor that uses normal water, as opposed to heavy water, as both its coolant and neutron moderator; furthermore a solid form of fissile elements is used as fuel. Thermal-neutron react ...

core design, analysis, and operational support. In April 2011, Studsvik praised defeat of a bill in the US State of

Tennessee Tennessee (, ), officially the State of Tennessee, is a landlocked U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders Kentucky to the north, Virginia to the northeast, North Carolina t ...

legislature that would have prohibited dumping low-level

nuclear waste Radioactive waste is a type of hazardous waste that contains radioactive material. It is a result of many activities, including nuclear medicine, nuclear research, nuclear power generation, nuclear decommissioning, rare-earth mining, and nuclear ...

in landfills. Both of Studsvik's US processing facilities are in Tennessee. Tennessee is one of the few states that allows dumping of low-level nuclear waste in landfills and the only state that allows dumping of nuclear waste on a single-license, rather than seek government approval for each shipment of waste."Nuclear Option"
''The Memphis Flyer'' 14 April 2011.

References

{{Coord, 58, 45.88, N, 17, 22.67, E, type:landmark, display=title Software companies of Sweden Nuclear power in Sweden Multinational companies headquartered in Sweden Companies listed on Nasdaq Stockholm Technology companies established in 1947 Technology companies of Sweden Swedish brands Swedish companies established in 1947 Companies based in Södermanland County Nyköping 1940s establishments in Stockholm