# Nuclear Decommissioning Authority — UK public sector contract awards > A public buyer profile built from sourced government contract award notices. ## Key facts - Awards: 422 - Known award value: £216,945,774 - Distinct suppliers: 170 - First award: 18 September 2015 - Latest award: 14 August 2026 ## Top suppliers - [TUV SUD](/suppliers/tuv-sud/public-sector-contract-awards) — 71 awards - [National Nuclear Laboratory](/suppliers/national-nuclear-laboratory/public-sector-contract-awards) — 29 awards - [Eden Nuclear](/suppliers/eden-nuclear/public-sector-contract-awards) — 14 awards - [Pinsent masons](/suppliers/pinsent-masons/public-sector-contract-awards) — 11 awards - [DELOITTE LLP](/suppliers/deloitte/public-sector-contract-awards) — 11 awards ## Contract awards ### [NDA/C17430/21 - R&D Delivery Improvements](/contracts/ocds-b5fd17-d8ed39dd-be72-490a-8bab-195ae3c41eb0) Nuclear Decommissioning Authority · National Nuclear Laboratory · £127,655 · 27 March 2026 · awarded ### [Support to change initiatives](/contracts/ocds-b5fd17-9d379218-e8d5-47c1-8d48-cea86849c5ce) Nuclear Decommissioning Authority · THE BERKELEY PARTNERSHIP LLP · £72,600 · 31 March 2026 · awarded ### [NDA/C17430/20 Pu Immobilisation SME support](/contracts/ocds-b5fd17-1796ef10-80ce-44d9-93a7-54530f64f8ad) Nuclear Decommissioning Authority · National Nuclear Laboratory · £109,700 · 16 March 2026 · awarded ### [NDA9/00916\.088 - ILW System Development, Modelling and Change Management](/contracts/ocds-b5fd17-1187bc58-4114-4c04-a043-6b2eab63bfe5) Nuclear Decommissioning Authority · TUV SUD Ltd · £341,496 · 13 February 2026 · awarded ### [NDA9/00916\.089 - CHILW Technical Assessments and Containers](/contracts/ocds-b5fd17-88dae424-9deb-4e50-a56e-dd71710300b4) Nuclear Decommissioning Authority · TUV SUD Ltd · £183,559 · 13 February 2026 · awarded ### [NDA9/00916\.090 - Strategic Support to Project Susannah](/contracts/ocds-b5fd17-e24db50d-5590-4010-bc85-72d6ecb4d5cc) Nuclear Decommissioning Authority · TUV SUD Ltd · £103,574 · 11 March 2026 · awarded ### [NDA9/00916\.091 - Support to Sealed sources landscape Review](/contracts/ocds-b5fd17-a8203bd5-4fb5-496b-8aff-9d65ef434e49) Nuclear Decommissioning Authority · TUV SUD Ltd · £59,928 · 3 March 2026 · awarded ### [Executive Assessments](/contracts/ocds-b5fd17-c82402de-030a-4cef-8910-fa8472c512af) Nuclear Decommissioning Authority · RUSSELL REYNOLDS ASSOCIATES LIMITED · £88,200 · 11 March 2026 · awarded ### [Independent investigation support](/contracts/ocds-b5fd17-58dffd57-b0c1-421b-a491-5654895a9d69) Nuclear Decommissioning Authority · RSM UK Risk Assurance Services LLP · £45,000 · 23 February 2026 · awarded ### [Meetings, Conferences & Events](/contracts/ocds-b5fd17-ad51a567-1ccd-4471-8751-928f53edb070) NUCLEAR DECOMMISSIONING AUTHORITY · Calder Conferences limited · £7,003,302 · 16 January 2026 · awarded ### [Corporate Travel - NDA Group & UKNNL](/contracts/ocds-b5fd17-9994d07a-d030-4d15-a2f6-12244aba43eb) Nuclear Decommissioning Authority · Clarity Travel Limited t/a Clarity · £42,500,000 · 2 October 2025 · awarded ### [NDA/C17430/19](/contracts/ocds-b5fd17-2f20031c-d865-47ec-a86e-bf90a1b214f6) Nuclear Decommissioning Authority · National Nuclear Laboratory · £123,327 · 2 February 2026 · awarded ### [\(06 - EDW&MR\) DC25-15](/contracts/ocds-b5fd17-c28275e2-fcfd-4fb8-8af2-6f59b31f5587) Nuclear Decommissioning Authority · AMENTUM CLEAN ENERGY LIMITED · £283,833 · 26 January 2026 · awarded ### [NDA9/00916\.085](/contracts/ocds-b5fd17-4055949e-cbcc-41a7-a535-1fa69e6df9aa) Nuclear Decommissioning Authority · TUV SUD Ltd · £271,499 · 5 February 2026 · awarded ### [NDA9/00916\.086](/contracts/ocds-b5fd17-c4982334-6105-4dc5-943b-ca8bde0397e7) Nuclear Decommissioning Authority · TUV SUD Ltd · £19,848 · 3 February 2026 · awarded ### [NDA/C17430/18](/contracts/ocds-b5fd17-1f4415a0-9636-40d1-b1a9-ec182404414b) Nuclear Decommissioning Authority · National Nuclear Laboratory · £27,370 · 9 January 2026 · awarded ### [Support to change initiatives](/contracts/ocds-b5fd17-ac282496-e5e9-4a31-b18d-630ad1b75a73) Nuclear Decommissioning Authority · THE BERKELEY PARTNERSHIP LLP · £171,600 · 30 January 2026 · awarded ### [Anchor Partnership extension with the National Decommissioning Centre \(NDC\)\.](/contracts/ocds-b5fd17-30d02be0-5052-4c20-8108-e8208e3c4b8d) NUCLEAR DECOMMISSIONING AUTHORITY · National Decommissioning Centre · £200,000 · 9 December 2025 · awarded ### [\(05 - SF&NM\) GK25-13](/contracts/ocds-b5fd17-67c4e8ea-13df-4d3d-94a8-ddd3d0a2318a) Nuclear Decommissioning Authority · AMENTUM CLEAN ENERGY LIMITED · £104,246 · 4 December 2025 · awarded ### [NDA/C17430/17 - HIP1 Equipment to make MOX pellets](/contracts/ocds-b5fd17-b84ed13c-0524-4f86-a5db-078b723f0510) Nuclear Decommissioning Authority · National Nuclear Laboratory · £563,124 · 12 January 2026 · awarded ### [NDA9/00916\.084 - Strategy Organisational Management Options](/contracts/ocds-b5fd17-0ff4851e-795d-4cf6-9e61-3a0fb7954817) Nuclear Decommissioning Authority · TUV SUD Ltd · £59,961 · 7 January 2026 · awarded ### [NDA9/00916\.083 - Heysham Licensing Strategy](/contracts/ocds-b5fd17-f3fdda59-063a-4fa1-9f75-ce61df26e1d5) Nuclear Decommissioning Authority · TUV SUD Ltd · £44,714 · 7 January 2026 · awarded ### [IT Javelin Bridging contract Direct Award \(2025-2028\)](/contracts/ocds-b5fd17-cbfba016-7217-49f8-8f87-0b6325399611) nuclear decommissioning authority · Sopra Steria Limited · £19,159,140 · 16 February 2025 · awarded ### [Contingent Labour and associated services - Workforce Solutions](/contracts/ocds-b5fd17-aced6778-496e-4470-8305-7b4b2041caa8) Nuclear Decommissioning Authority · Alexander Mann Solutions Limited · £522,300,000 · 3 December 2025 · awarded ### [NDA9/00916\.082 - Alternative End States](/contracts/ocds-b5fd17-d7e842a8-26d7-4064-91e3-86d4fb9360c1) Nuclear Decommissioning Authority · TUV SUD Ltd · £49,995 · 11 December 2025 · awarded Page 2 of 17; 422 total records.