Department for Energy Security & Net Zero
View 3D network →Central Gov
- Tenders published
- 184
- Total value
- £1.1bn
- Open now
- 4
- Last activity
- 2026-07-06
Spending over time
Published tender value by year, from official notices.
£149m
£135m
£161m
2023
2025
2026
When they’ll likely tender next
Department for Energy Security & Net Zero re-tenders these categories on a measurable cycle. Estimates come from their own published history — an overdue cycle means the last round has lapsed and a new notice could appear at any time.
| Category | Typical cycle | Next expected |
|---|---|---|
| Government & Public Administration | ~every 1 month | Overdue — may re-tender at any time |
| IT Services | ~every 1 month | Sept 2026 |
| Engineering & Architecture | ~every 3 months | Sept 2026 |
| Business Services | ~every 2 months | Oct 2026 |
| Software & IT Systems | ~every 4 months | Dec 2026 |
Who wins here
Suppliers with the most published contract awards from Department for Energy Security & Net Zero.
- Aether Limited4 wins
- United Kingdom National Nuclear Laboratory3 wins
- The University of Salford2 wins
- Energy Systems Catapult2 wins
- DMDL Ltd2 wins
- Ricardo-AEA Limited2 wins
- Build Test Solution1 win
- BSI Standards Ltd1 win
Who could bid next time →
Suppliers proven on this kind of work — with Department for Energy Security & Net Zero and with buyers like it. Every name is a published contract award.
Open opportunities
£4.7mCloses 3 Sept 2026Published 10 Jul 2026 (10 Jul 2026)R&DSustainability
£4.7mOpen · closes 17 Sept 2026Published 30 Jul 2026 (30 Jul 2026)Engineering & ArchitectureR&DSustainability
£3.0mOpen · closes 27 Sept 2026Published 3 Aug 2026 (3 Aug 2026)R&DSustainability
£250kOpen · closes 30 Sept 2026Published 21 Aug 2026 (6 days ago)R&DSustainability
Recent tenders
£250kOpen · closes 30 Sept 2026Published 21 Aug 2026 (6 days ago)R&DSustainability
£4.1mPublished 19 Aug 2026 (8 days ago)R&DSustainability
£3.0mPublished 11 Aug 2026 (11 Aug 2026)IT ServicesSustainability
Value not publishedPublished 10 Aug 2026 (10 Aug 2026)IT ServicesSoftware & IT SystemsSustainability
£3.0mOpen · closes 27 Sept 2026Published 3 Aug 2026 (3 Aug 2026)R&DSustainability
£3.0mPublished 3 Aug 2026 (3 Aug 2026)R&DSustainability
£770kPublished 3 Aug 2026 (3 Aug 2026)Engineering & ArchitectureIT Services
£4.7mOpen · closes 17 Sept 2026Published 30 Jul 2026 (30 Jul 2026)Engineering & ArchitectureR&DSustainability
£1.8mPublished 27 Jul 2026 (27 Jul 2026)Business ServicesSustainability
£9.9mPublished 16 Jul 2026 (16 Jul 2026)IT ServicesSoftware & IT Systems