Buyer profile
Department for Energy Security & Net Zero
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Total contracts
119
Known spend
£431m
113 disclosed
Average value
£4m
Per contract
Active suppliers
10
Last 5 years
Top suppliers
Last 5 years- 1
United Kingdom National Nuclear Laboratory
£24m
- 2
Aether Limited
£184,771
- 3
Energy Systems Catapult Limited
£621,302
- 4
Version 1 Solutions Ltd
2 winslatest 19 Aug 2026£100m
- 5
PricewaterhouseCoopers LLP
2 winslatest 28 Oct 2025£2m
- 6
RSM UK Restructuring Advisory LLP
2 winslatest 28 Oct 2025£2m
- 7
Teneo Financial Advisory Limited
2 winslatest 28 Oct 2025£2m
- 8
Deloitte LLP
2 winslatest 28 Oct 2025£2m
- 9
DMDL Ltd
2 winslatest 13 Oct 2025£920,000
- 10
YRD İstanbul Reklamcılık ve Danışmanlık Ticaret Anonim Şirketi
2 winslatest 06 Oct 2026£845,026
What they buy
By CPV categoryBusiness servicesCPV 79
3 contracts · £4m
Tender activity
Notices published per month — last 24 months
All contracts (119)
Provision of business intelligence data subscription
Department for Energy Security and Net Zero intend to enter into a contract with Moody's Analytics for the provision of Business Intelligence Data, using their Fame and Orbis produ
CSP25324 – GBE pension scheme
Great British Energy (GBE) are seeking to secure a pension provider. As GBE is not part of the civil service, it is not covered by the current civil service pension arrangements an
Uk-ets auctions services
This Contract between the Buyer and the Supplier is for the supply of Deliverables, being the provision of an auction platform and related services for the UK Emissions Trading Sch
Press association licence for DSIT and desnz
This is a joint renewal of the PA Media subscription for DSIT and DESNZ. PA Media is a business-critical service that is utilised by both department’s press teams.
Transparency notice for green deal ombudsman investigation service (OIS)
The procurement is for an ongoing requirement under the Green Deal Framework Regulations (Disclosure, Acknowledgement, Redress etc) Regulations 2012 (the ‘Framework Regulations’) p
Enhancing private investment for climate (EPIC)
Tackling climate change and nature loss internationally is in our national interest. The UK has a long track record of delivering impact and value for money through our Internation
HR - ICS - pay progression digital assessment tool
The HR team within ICS Integrated Corporate Services, part of the Department for Energy Security and Net Zero is seeking to engage with the market in advance of a potential future
Plug-in solar PV study
The objective of this study is to assess whether plug-in solar photovoltaic (PV) connected to certified inverters can be safely deployed in the UK without socket or building wiring
Energy technology list pipeline notice
The ErP Programme seeks to improve the environmental performance (energy efficiency as well as other relevant environmental criteria) for specific energy-related products and produ
Energy retail markets legal advice and services
Provision of legal advice in relation to electricity and gas supplier financial difficulties, insolvencies and subsequent government response which may include, but not be limited
COP30 translation services
To provide seamless multilingual communication support for COP30 including simultaneous interpretation (on-site and remote) and translation of key documents and media and ensuring
Energy supply company insolvency - response
Legal services for support for the SAR for Bulb
Report on nuclear graphite waste
The Contract will be provided by the supplier through the Nuclear Graphite Research Group (NGRG) who will provide Disposal options for nuclear graphite within the radioactive waste
PS25123 - RAF003/2526 - great british energy – employment impact assessment framework
Backed by a capitalisation of up to £8.3bn over this Parliament, Great British Energy (GBE) is a publicly owned energy company with a mission to drive clean energy deployment, crea
COP30 pavilion and associated services
Correction of threshold to existing UK6 notice 2025/S 000-057528, not a new notice. Previous contract timescales apply. The COP30 Pavilion and other services project covers the ass
Unfccc review – in-country review of ecuador’s biennial transparency report
Greenhouse gas inventories (GHGI) are required to be submitted by Parties to the United Nations Framework Convention on Climate Change (UNFCCC), which includes the UK. These invent
CSP25072 - GBE leadership and culture development
The final date and time for the submission of bids is Friday 3rd October 2025 at 11:00 am. DO NOT apply directly to the buyer. All tender information MUST be submitted through the
COP30 pavilion and associated services
The COP30 Pavilion and other services project covers the assembly, management, and dismantling of spaces in the Blue Zone of the 2025 UN Climate Change Conference (COP30), held 10–
New york climate week legacy event summit
Event Services from the Supplier for the hire of Goals House for a Legacy Summit Event during UNGA 2025.
Upstream oil and gas fields subscription 2025-2028
Wood Mackenzie annual subscription is a source of information on upstream oil and gas fields.