Ұлыбритания үкіметінің қаржыландыратын ұйымы және ядролық нысандарды жою жөніндегі қызметі

Public body sponsored by the United Kingdom Government
Its annual budget is £3.5billion, the vast majority of which is spent through contracts with site licence companies, who also subcontract to other companies which provide special services. The NDA aims to do this by introducing innovation and contractor expertise through a series of competitions similar to the model that has been used in the United States. In April 2017, the NDA lost a legal case in the Supreme Court regarding the procurement of a sizeable contract for the decommissioning of twelve different Magnox nuclear facilities when EnergySolutions EU (now called ATK Energy EU) challenged a decision in connection with ATK's unsuccessful bid. In February 2018 Parliament's Public Accounts Committee (PAC) concluded that the NDA had "dramatically under estimated" costs and "completely failed" in the procurement and management of the Magnox Ltd contract, which was one of the highest value contracts let by the government. An independent inquiry into the deal was set up.

Responsibility for operating the sites has been restructured into five site licence companies (SLC). Management of the SLCs was formerly contracted out to different parent body organisations (PBO), some of which were initially owned by private companies. More recently, the NDA has transitioned to a "group approach" of SLCs being wholly owned NDA subsidiaries

Sellafield Ltd was previously BNFL's British Nuclear Group subsidiary. It comprises the Sellafield nuclear chemical facility and Calder Hall. It also previously managed the Capenhurst uranium enrichment plant, which is now owned by Urenco. Its PBO was formerly Nuclear Management Partners Ltd, a consortium of URS, Amec Foster Wheeler and Areva. However, Sellafield Ltd has been under the direct control of the NDA since April 2016. Magnox Ltd previously two separate site licence companies), manages ten Magnox nuclear power stations and the Harwell and Winfrith facilities. It comprises Chapelcross, Hunterston A, Trawsfynydd, Wylfa and Oldbury (previously Magnox North) and Berkeley, Bradwell, Dungeness A, Hinkley Point A and Sizewell A (previously Magnox South). Its PBO was formerly Cavendish Fluor Partnership, a consortium of Babcock International and Fluor. Magnox Ltd has been a subsidiary of the NDA since September 2019. Dounreay Site Restoration Limited (DSRL) comprises the Dounreay site. Until March 2021, its PBO was Cavendish Dounreay Partnership, a consortium of Babcock International, CH2M Hill and URS. It is now directly managed by the NDA. Springfields Fuels comprises the Springfields nuclear fuel production facility near Preston, Lancashire. Its PBO is Westinghouse Electric Company, a subsidiary of Toshiba. On its creation, the NDA also took over ownership of Direct Rail Services, the rail freight operating company set up by BNFL in 1995 to transport nuclear materials; and International Nuclear Services, which operates services on behalf of the NDA for the management and transportation of nuclear fuels. Both have since merged to become Nuclear Transport Solutions. The NDA is also the owner of Radioactive Waste Management (RWM), which is responsible for implementing a geological disposal facility in the UK and provide radioactive waste management solutions. In February 2017, a national archive for the UK civil nuclear industry, named Nucleus, was opened in Wick, Caithness, Scotland.

In 2006, the then Secretary of State for Trade and Industry announced his support for a National Nuclear Laboratory (NNL) to be based on the British Technology Centre at Sellafield and Nexia Solutions. The NDA, as the owner of Sellafield site and the funder of majority of research required across the nuclear estate, was involved establishing the NNL in 2009. The NNL complements other initiatives to develop a sustainable workforce such as the National Skills Academy for Nuclear (NSAN) network, including the development of Energus in West Cumbria, alongside complementary research and development facilities such as the Dalton Nuclear Institute.