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buyer

Desnz

Swindon SN21FF

Desnz has published 412 tenders and contracts since 2023, 379 naming a winner.

as a buyer

412 procurement records (398 unique titles), of which 379 have award details , between 4 Dec 2023 and 4 Sept 2026.

contracts published
412
median value
£200,498
excludes ceilings
largest
£500m
open now
0

top suppliers

supplierawardsmedian
Ove Arup & Partners Limited 15 £190,549
WSP UK Limited 11 £302,480
Kantar Public UK Limited 11 £82,794
Aecom 9 £428,332
Technopolis Limited 8 £318,377
Baringa Partners LLP 8 £132,450
Ricardo-AEA Ltd 7 £2,460,216
Guidehouse Europe Limited 7 £245,000
PA Consulting Services Limited 7 £1,000,000
Buro Happold Ltd 7 £205,000
Frazer-Nash Consultancy Limited 6 £239,583
Deloitte LLP 6 £4,750,000

what it buys

common questions about Desnz

How many contracts has Desnz published?

Desnz has published 412 procurement notices since 2023, of which 379 name a winning supplier.

Does Desnz have any open tenders right now?

Desnz has no tenders open for bids right now.

Who are Desnz's biggest suppliers?

By number of contracts awarded, Desnz's most frequent suppliers are Ove Arup & Partners Limited, WSP UK Limited and Kantar Public UK Limited.

Which Desnz contracts are expiring soon?

44 contracts involving Desnz have end dates in the next 12 months, the earliest on 29 Sept 2026.

contracts expiring in the next 12 months

Showing the 40 ending soonest, of 44. Contract end dates as published on the original notice. An end date is not a commitment to re-tender — a contract may be extended, varied or allowed to lapse — but it is the earliest public signal that work may come back to market.

contract counterparty value ends
Energy and Net Zero Professional Services Framework · · 29 Sept 2026
Warm Home Discount - Contact Centre - Contract Award Notice Hinduja Global Services £5,531,537 13 Oct 2026
PS24233 - CCA Future Schemes RICARDO-AEA LIMITED £400,210 30 Oct 2026
Contract Award Notice - Landfill Gas to Electricity, Cost Commission WSP UK LIMITED £60,000 6 Nov 2026
DDaT24382 - Managed Support Services - Solution Development Corporate Project Solutions Limited £224,200 7 Nov 2026
PS26123 - RAF 003/2627 - Green home loan scheme and Solar research Verian Group UK Ltd £118,012 13 Nov 2026
con_8954 - HNTAS Interim Technical Support Fair Heat Limited £780,878 16 Nov 2026
Services to Provide Ongoing Analysis and News Reporting on Oil Markets 2024-2026 · £96,000 1 Dec 2026
BE24192 - The Contribution of Demand Side Response (DSR) to Decarbonisation Targets Baringa Partners LLP £79,845 11 Dec 2026
BE24194 - Smart Metering Programme Evaluation (IPE) Verian Group UK Ltd £879,391 22 Dec 2026
Legal services for the DESNZ GBN Sponsorship and Policy team DLA Piper UK LLP £15,000,000 19 Jan 2027
Energy & Net Zero Professional Services Framework Accenture (UK) Limited +42 more · 31 Jan 2027
Devops Resource for Radiological Response and Emergency Management System (RREMS) Investigo Limited £288,750 2 Feb 2027
PS23414 - Greenhouse Gas Removal - Legal Services Ashurst LLP £4,000,000 2 Feb 2027
CSP25449 - Executive Search Agency Recruitment GBE 2025 FWB Park Brown Limited £75,000 24 Feb 2027
PS25193 - Electrification of Heat Programme Evaluation ICF Consulting Services Ltd £998,899 31 Mar 2027
Project SWAN Development Agreement SWAN ESCO Limited +1 more £100,000 31 Mar 2027
CSP25292 - Emergency Response, Capabilities and Operations (ERCO) Training and Exercising Contract JOLTS Consulting Limited £1,500,000 31 Mar 2027
PS26210 - RAF 011/2627 -Understanding compliance and supporting sustainable enforcement of PRS domestic and non-domestic MEES Verian Group UK Ltd £213,347 31 Mar 2027
PS25220 - RAF014/2526 - Evaluation of the Retrofit Devolution Program Technopolis £279,504 31 Mar 2027
BE23185 - Subscription services for market insight relating to the power sector Lane Clark & Peacock LLP £160,000 1 Apr 2027
Contract Award Notice Home Energy Model (HEM) Lot 2 City Science Corporation £807,375 13 Apr 2027
Contract Award Notice - Home Energy Model - Lot 3 City Science Corporation £1,207,538 13 Apr 2027
UK MEMBERSHIP OF THE GLOBAL CCS INSTITUTE Global Carbon Capture and Storage Institute £346,000 21 Apr 2027
Automox Licence for the Radiological Response and Emergency management system (RREMS) ITHQ Ltd £1,472 24 Apr 2027
HNES Evaluation RSM UK Consulting LLP £335,028 30 Apr 2027
Contract Award Notice Home Energy Model (HEM) Lot 6 Building Research Establishment Limited £270,000 5 May 2027
Contract Award Notice - Home Energy Model (HEM) Lot 4 Building Research Establishment Limited £2,060,000 5 May 2027
Contract Award - Home Energy Model (HEM) Lot 1 Sustenic Limited £2,680,000 7 May 2027
Financial experts on due diligence for hydrogen projects assessment and negotiation Deloitte LLP £8,000,000 12 May 2027
Sizewell C Legal Services Ashurst LLP £7,500,000 31 May 2027
Contract Award - Home Energy Model (HEM) - Lot 5 Etude £1,197,935 31 May 2027
Landfill Gas - CfD Legal Dentons UK and Middle East LLP £281,000 31 May 2027
GSS25025 - Recruitment Campaign IRG ADVISORS LLP £70,000 4 Jun 2027
External Advisor on Valuations NERA UK Limited £450,000 11 Jun 2027
PS24030 - Energy and Net Zero Behavioural Science Framework RAF067.2324 - RFP Behavioural Insights Ltd +3 more · 21 Jun 2027
Provision of Professional Services for GBE Investments Deloitte LLP £1,500,000 24 Jun 2027
Development of a Model of the GB Electricity Distribution System WSP UK LTD £302,480 24 Jun 2027
Contract Award Notice for the Administration of the Biomass Supplier List Woodsure Limited · 30 Jun 2027
Greenhouse Gas Removals (GGR) Standards and Methodologies BSI Standards Limited £4,390,032 30 Jun 2027

contracts published

contractvaluepublished
PS26210 - RAF 011/2627 -Understanding compliance and supporting sustainable enforcement of PRS domestic and non-domestic MEES £213,347 ceiling 4 Sept 2026
DESNZ Heat Network Zoning Legal Services Contract £586,313 ceiling 26 Aug 2026
Legal Advisor to the DESNZ Advanced Nuclear Policy and Delivery team £8,750,000 ceiling 25 Aug 2026
Auditors for the Renewables Obligation (RO) Cost to Exchequer £3,000,000 ceiling 25 Aug 2026
Contract awarded for an Independent Evaluation and Learning Partner to assess the NDC Support Programme £853,083 ceiling 19 Aug 2026
Evaluation of Electricity Transmission Network Infrastructure Bill Discount Scheme and Community Funds Guidance. £640,000 ceiling 27 Jul 2026
Contract Award Notice - Landfill Gas to Electricity, Cost Commission £60,000 19 Jun 2026
Carbon Capture Usage and Storage (CCUS) Financial Advisory Support £15,000,000 ceiling 15 Jun 2026
PS26123 - RAF 003/2627 - Green home loan scheme and Solar research £118,012 ceiling 29 May 2026
PS26016 - The Provision of Third Party Inspections £800,000 ceiling 27 May 2026
Landfill Gas - CfD Legal · ceiling 26 May 2026
Amiqus Resolution Ltd - RTW Identity Checks £72,000 ceiling 22 May 2026
AWARDED CONTRACT NOTICE: SMIP ICT Testing and Migration Services £1,898,125 ceiling 11 May 2026
AWARDED - Smart Metering Implementation Programme (SMIP) - ICT Technical Architecture and Security £2,591,325 ceiling 11 May 2026
Evaluation for HALEU Programme £1,411,472 ceiling 20 Apr 2026
CSP25292 - Emergency Response, Capabilities and Operations (ERCO) Training and Exercising Contract £1,500,000 ceiling 2 Apr 2026
DESNZ Leading Together leadership change programe £12,000 ceiling 2 Apr 2026
Evaluation for GIGa HALEU Programme £1,411,472 ceiling 1 Apr 2026
Awarded Contract: Provision of Regulatory Design Services to the Smart Metering Implementation Programme £1,899,800 ceiling 27 Mar 2026
Project SWAN Development Agreement £100,000 27 Mar 2026
PS25356 Impact of Inference at the Edge (RAF043/2526) £79,200 ceiling 25 Mar 2026
CSP25449 - Executive Search Agency Recruitment GBE 2025 £150,000 ceiling 18 Mar 2026
RAF 051/2526 Engaging generations in the transition to clean energy £69,911 ceiling 12 Mar 2026
Support for Deep Water Wind Industry, Market and Technology Insight and Expertise £165,369 ceiling 11 Mar 2026
ITT 2544 - DESNZ - Energy Technology List £7,766,667 5 Mar 2026

every contract published by Desnz →

where these figures come from

Every figure on this page is derived from notices published by Contracts Finder, Find a Tender, Public Contracts Scotland and Sell2Wales, under the Open Government Licence v3.0. The corpus runs from 17 Dec 2014 to 11 Sept 2026 and is refreshed from the publishers' own APIs through the working day.

Records are combined into one organisation on identifiers where publishers provide them — a Companies House number, a GB-PPON supplier id — and on exact normalised name and address where they do not. Never on address alone: one shared-service postcode carries 244 unrelated organisations.

Counts are of contracting processes, not published notices: a tender and its award notice are one contract, and are counted once. Values are medians, never totals, and exclude framework ceilings — a ceiling states a spending limit shared across every supplier on the framework, so adding them together produces a number no one ever spent. sources and coverage · how matching works

Contains public sector information licensed under the Open Government Licence v3.0.