Official transparency data
Department for Energy Security & Net Zero: spending & suppliers
Department for Energy Security & Net Zero has £11,683,027,148 of tracked procurement spend across 7,879 published payments to 1,061 suppliers, from Jul 2024 to Dec 2025.
Excludes £6,960,660,960 paid to other public bodies as funding rather than for goods or services — grant-in-aid and similar. Those payments are held in full and shown in the underlying data, but counting them as procurement would overstate what Department for Energy Security & Net Zero actually buys.
Amounts follow each publisher’s own basis — some publish figures including VAT, others excluding it — so totals are not directly comparable between buyers.
£12bn
tracked procurement spend
8k
payment transactions
1,061
suppliers paid
10
contracts expiring (12m)
Top suppliers by tracked spend
The largest recipients of Department for Energy Security & Net Zero’s published payments.
See all 1,061 suppliers
1,056 more suppliers, each incumbent’s payment history and run-rate, spend trends over time, and the 10 contracts expiring in the next 12 months — inside PSIP.
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Frequently asked questions
How much does Department for Energy Security & Net Zero spend?
Department for Energy Security & Net Zero has £11,683,027,148 of tracked procurement spend across 7,879 published payments to 1,061 suppliers, covering Jul 2024 to Dec 2025. These figures come from Department for Energy Security & Net Zero’s own transparency publications.
Who are Department for Energy Security & Net Zero’s biggest suppliers?
The largest suppliers by tracked payment value are shown above. The complete supplier list — all 1,061 of them, with each supplier’s payment history and monthly run-rate — is available inside PSIP.
How many Department for Energy Security & Net Zero contracts are expiring?
Department for Energy Security & Net Zero has 10 contracts with an end date in the next 12 months in our records. Which specific contracts, who holds them and what they are worth is inside PSIP — the moment a contract nears expiry is the moment to engage the buyer.
Where does this Department for Energy Security & Net Zero spending data come from?
From Department for Energy Security & Net Zero itself. UK public bodies are required to publish their payments to suppliers. PSIP ingests those official publications, normalises the formats and matches suppliers to the Companies House register where it can identify a registered company. Every figure traces back to a source publication — nothing is estimated.
Figures aggregated from Department for Energy Security & Net Zero’s official transparency publications, with suppliers matched to Companies House where we can identify a registered company. Covered period Jul 2024–Dec 2025. See the full data coverage.