Top suppliers
Top suppliers to Department for Energy Security & Net Zero
Top-five suppliers hold 66% of contract value — a concentrated market.
Procurement categories
What Department for Energy Security & Net Zero buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
737175727944Recent contracts
Latest Department for Energy Security & Net Zero contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
Provision of Gas Data
XOSERVE LIMITED · 2026-09-08
£260K
Advisory Work on Portfolio Function Design
Stat-Edgy LLP · 2026-09-07
£61K
CSP26570 - Gas and Liquefied Natural Gas (LNG) Market Analysis and Data Subscription
Rystad Energy Limited · 2026-09-01
£195K
UNFCCC Review BTR Luxembourg
WSP UK LTD · 2026-08-31
£20K
North West- Digital and Technology Skills Programme
IN4 Group Limited · 2026-08-24
£1.4M
UNFCCC Review BTR Oman
Holly Zhang · 2026-08-24
£14K
Reporting UK Non-Nuclear Radioactive Discharges
HEQLAS INTEGRATED SERVICES LTD · 2026-08-19
£26K
Audio Visual (AV) Event Support For International Conference
PCL Live (Aberdeen) Limited · 2026-08-18
£96K
UNFCCC Reviews - In-Country BTR of Algeria, Germany, Cyprus, Zambia
Aether Limited · 2026-08-17
£95K
UNFCCC Review - BTR Belarus
Rosemary Brook · 2026-08-16
£18K
WANT TO WIN WORK FROM DEPARTMENT FOR ENERGY SECURITY & NET ZERO?
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Open opportunities
Open Department for Energy Security & Net Zero tenders
Tenders currently inviting bids. SMEs can respond via the official tender portal.
Greenhouse Gas Inventory Improvement Programme - 2 Energy, Waste, and Industrial Processes and Product Use
Deadline: 2026-09-27
£3.0M
Greenhouse Gas Inventory Improvement Programme - 2 Energy, Waste, and Industrial Processes and Product Use
Deadline: 2026-09-27
£3.0M
Climate Ambition Support Alliance Phase 3 (CASA3)
Deadline: 2026-10-06
£8.4M
PS26239 - RAF015/2627 - Plug-in batteries safety study
Deadline: 2026-10-07
£300K
Biomass Research Programme
Deadline: 2026-10-13
£4.1M
Pipeline
Contracts expiring in the next 12 months
When these contracts end, Department for Energy Security & Net Zero typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.
Assessment of legacy data for natural hydrogen in the UK
Expires: 2026-10-30
£130K
UK5 Notice Publicly Available Specification (PAS)2035 & 2030 - review
Expires: 2026-11-02
£188K
UNFCCC Review BTR Luxembourg
Expires: 2026-11-13
£20K
Advisory Work on Portfolio Function Design
Expires: 2026-11-17
£61K
UNFCCC Reviews - In-Country BTR of Algeria, Germany, Cyprus, Zambia
Expires: 2026-11-18
£95K
Provision of Business Intelligence Data Subscription
Expires: 2026-12-31
£488K
Transport Industrial and Commercial Refrigeration (TICR) UK5 Notice
Expires: 2026-12-31
£20K
UNFCCC Review BTR Oman
Expires: 2027-01-31
£14K
UNFCCC Review - BTR Belarus
Expires: 2027-01-31
£18K
Audio Visual (AV) Event Support For International Conference
Expires: 2027-02-26
£96K
Market analysis
Bidding into Department for Energy Security & Net Zero — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
36%
Awards to SMEs
66%
Top-5 supplier share
0%
Framework call-offs
—
Awards to social enterprises
Around 36% of Department for Energy Security & Net Zero’s classified awards go to small and medium-sized enterprises.
Frequently asked
Common questions about selling to Department for Energy Security & Net Zero
How much does Department for Energy Security & Net Zero spend on procurement?
Department for Energy Security & Net Zero awarded 110 contracts totalling £99.6M between 2023-09-15 and 2026-09-15, working with 97 unique suppliers. Average contract value is £1.1M.
Who are Department for Energy Security & Net Zero's top suppliers?
The largest suppliers to Department for Energy Security & Net Zero by total award value are United Kingdom National Nuclear Laboratory, National Nuclear Laboratory, PricewaterhouseCoopers LLP. The top five suppliers together hold 66% of contract value.
What does Department for Energy Security & Net Zero buy from suppliers?
Department for Energy Security & Net Zero's procurement is concentrated in research and development services and related consultancy services, architectural, construction, engineering and inspection services, administration, defence and social security services, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for Department for Energy Security & Net Zero contracts?
Department for Energy Security & Net Zero 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.
Continue reading
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 Department for Energy Security & Net Zero's largest spend area.
INDEX
All UK public-sector buyers
Browse procurement profiles for every UK government department and major buyer.
Sources & methodology
How this profile is compiled
Analysed by ENKII · Updated 2026-09-15
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.