Official transparency data
Department for Energy Security & Net Zero: spending & suppliers
Department for Energy Security & Net Zero has £9,481,342,055 of tracked procurement spend across 6,527 published payments to 999 suppliers, from Jul 2024 to Sep 2025.
Excludes £5,463,587,863 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.
£9.5bn
tracked procurement spend
7k
payment transactions
999
suppliers paid
6
contracts expiring (12m)
Top suppliers by tracked spend
The largest recipients of Department for Energy Security & Net Zero’s published payments.
See all 999 suppliers
994 more suppliers, each incumbent’s payment history and run-rate, spend trends over time, and the 6 contracts expiring in the next 12 months — inside PSIP.
Start a free trial →Engage Department for Energy Security & Net Zero before the tender
By the time a contract is advertised, the incumbent has often been in the buyer’s ear for months. Knowing what Department for Energy Security & Net Zero spends, who holds their contracts and what is about to expire lets you build the relationship first — where bids are won. Inside PSIP you get the full supplier picture, incumbent payment histories and alerts the moment things move.
Frequently asked questions
How much does Department for Energy Security & Net Zero spend?
Department for Energy Security & Net Zero has £9,481,342,055 of tracked procurement spend across 6,527 published payments to 999 suppliers, covering Jul 2024 to Sep 2025. These figures come from Department for Energy Security & Net Zero’s own transparency publications under the Open Government Licence.
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 999 of them, with each supplier’s full 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 6 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 against the Companies House register, so every figure traces back to a source publication — nothing is estimated.
Figures aggregated from Department for Energy Security & Net Zero’s official transparency publications under the Open Government Licence, supplier-matched to Companies House. Covered period Jul 2024–Sep 2025. See the full data coverage.