Top suppliers
Top suppliers to The Department for Energy Security and N…
Top-five suppliers hold 100% of contract value — a concentrated market.
Procurement categories
What The Department for Energy Security and N… buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
7379Recent contracts
Latest The Department for Energy Security and N… contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
National Atmospheric Emissions Inventory (NAEI) - Lot 1
Ricardo AEA Ltd · 2025-01-09
£32.4M
National Atmospheric Emissions Inventory (NAEI) 2025: Lot 2
The Public Service Consultants Ltd · 2024-12-09
£830K
GBN Legal Services - Co-investment Decision Advice
Slaughter & May · 2024-07-21
£600K
Technical Advisory Services for Sizewell C
Ove Arup & Partners Limited · 2023-01-05
£3.7M
Financial Advisory Servies for Sizewell C
PRICEWATERHOUSECOOPERS LLP · 2022-12-12
£5.1M
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Market analysis
Bidding into The Department for Energy Security and N… — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
20%
Awards to SMEs
100%
Top-5 supplier share
0%
Framework call-offs
—
Awards to social enterprises
Around 20% of The Department for Energy Security and N…’s classified awards go to small and medium-sized enterprises.
Frequently asked
Common questions about selling to The Department for Energy Security and N…
How much does The Department for Energy Security and N… spend on procurement?
The Department for Energy Security and N… awarded 3 contracts totalling £33.8M between 2023-10-17 and 2026-10-17, working with 3 unique suppliers. Average contract value is £11.3M.
Who are The Department for Energy Security and N…'s top suppliers?
The largest suppliers to The Department for Energy Security and N… by total award value are Ricardo AEA Ltd, The Public Service Consultants Ltd, Slaughter & May. The top five suppliers together hold 100% of contract value.
What does The Department for Energy Security and N… buy from suppliers?
The Department for Energy Security and N…'s procurement is concentrated in research and development services and related consultancy services, business services: law, marketing, consulting, recruitment, printing and security, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for The Department for Energy Security and N… contracts?
The Department for Energy Security and N… publishes open tenders on Find a Tender and Contracts Finder. ENKII matches your business against live tenders, identifies certifications you'll need, and surfaces frameworks worth applying to. Free Readiness Score in 3 minutes.
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Related ENKII resources
GUIDE
PQQ & Selection Questionnaire — Procurement Act 2023
How UK central-government departments evaluate suppliers at the pre-qualification stage.
GUIDE
Cyber Essentials — for government contracts
Most central-government contracts handling personal data require this certification.
SECTOR
UK Government IT Services
G-Cloud, DOS, Crown Commercial frameworks. Software + consultancy is The Department for Energy Security and N…'s largest spend area.
INDEX
All UK public-sector buyers
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Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-10-17
This profile aggregates public-record procurement data published by the UK Government under the Open Government Licence v3.0. ENKII fetches, deduplicates, and aggregates source records; we don't edit the underlying facts.
Source portals
- · Find a Tender (find-tender.service.gov.uk)
- · Contracts Finder
Source records remain subject to Open Government Licence v3.0 attribution. ENKII doesn't warrant accuracy beyond the source portals' own publication.