Top suppliers
Top suppliers to DESNZ
Top-five suppliers hold 72% of contract value — a concentrated market.
Procurement categories
What DESNZ buys
Common Procurement Vocabulary (CPV) breakdown of contracts awarded over the reporting period.
737971097266487580983992607664Recent contracts
Latest DESNZ contracts awarded
The most recently published award notices on Find a Tender and Contracts Finder.
PS26210 - RAF 011/2627 -Understanding compliance and supporting sustainable enforcement of PRS domestic and non-domestic MEES
Verian Group UK Ltd · 2026-09-01
Contratct awarded for an Independent Evaluation and Learning Partner to assess the NDC Support Programme
NIRAS Group (UK) Ltd · 2026-08-18
DESNZ Heat Network Zoning Legal Services Contract
Burges Salmon LLP · 2026-08-10
Legal Advisor to the DESNZ Advanced Nuclear Policy and Delivery team
Addleshaw Goddard · 2026-07-29
Evaluation of Electricity Transmission Network Infrastructure Bill Discount Scheme and Community Funds Guidance.
Verian Group UK Ltd · 2026-07-09
DESNZ- Commercial Contingent Labour Support
Investigo Limited · 2026-06-18
DESNZ- Commercial Contingent Labour Support
Investigo Limited · 2026-06-18
ICF Legal Services Contract Award Notice
TLT LLP · 2026-06-07
Auditors for the Renewables Obligation (RO) Cost to Exchequer
Grant Thornton UK LLP · 2026-06-07
Contract Award Notice - Landfill Gas to Electricity, Cost Commission
WSP UK LIMITED · 2026-06-02
£60K
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Pipeline
Contracts expiring in the next 12 months
When these contracts end, DESNZ typically re-tenders. SMEs preparing bids 3-6 months ahead win disproportionately often.
Warm Home Discount - Contact Centre - Contract Award Notice
Expires: 2026-10-13
PS24233 - CCA Future Schemes
Expires: 2026-10-30
Contract Award Notice - Landfill Gas to Electricity, Cost Commission
Expires: 2026-11-06
£60K
DDaT24382 - Managed Support Services - Solution Development
Expires: 2026-11-07
BE24192 - The Contribution of Demand Side Response (DSR) to Decarbonisation Targets
Expires: 2026-12-11
DESNZ- Commercial Contingent Labour Support
Expires: 2026-12-16
DESNZ- Commercial Contingent Labour Support
Expires: 2026-12-16
BE24194 - Smart Metering Programme Evaluation (IPE)
Expires: 2026-12-22
Sizewell C Legal Services
Expires: 2027-01-05
Sizewell C Legal Services
Expires: 2027-01-05
Market analysis
Bidding into DESNZ — what to expect
Supplier concentration and timing patterns that shape SME bid strategy.
27%
Awards to SMEs
72%
Top-5 supplier share
74%
Framework call-offs
2
Awards to social enterprises
Around 27% of DESNZ’s classified awards go to small and medium-sized enterprises, and 2 have gone to voluntary, community or social enterprises. Around 74%of awards are call-offs from framework agreements — getting onto the right framework matters as much as the bid itself here.
Frequently asked
Common questions about selling to DESNZ
How much does DESNZ spend on procurement?
DESNZ awarded 343 contracts totalling £109.3M between 2023-09-15 and 2026-09-15, working with 212 unique suppliers. Average contract value is £1.3M.
Who are DESNZ's top suppliers?
The largest suppliers to DESNZ by total award value are Ricardo AEA Ltd, PricewaterhouseCoopers LLP, Homefire Group Limited. The top five suppliers together hold 72% of contract value.
What does DESNZ buy from suppliers?
DESNZ's procurement is concentrated in research and development services and related consultancy services, business services: law, marketing, consulting, recruitment, printing and security, architectural, construction, engineering and inspection services, alongside specialist categories. See the full CPV breakdown below.
How can my business bid for DESNZ contracts?
DESNZ 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 DESNZ'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.