NATIONAL ENERGY SYSTEM OPERATOR LIMITED
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- Tenders published
- 47
- Total value
- £364.0m
- Open now
- 0
- Last activity
- 2026-06-26
Spending over time
Published tender value by year, from official notices.
£5m
£278m
£48m
2024
2025
2026
When they’ll likely tender next
NATIONAL ENERGY SYSTEM OPERATOR LIMITED 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 |
|---|---|---|
| Business Services | ~every 1 month | Overdue — may re-tender at any time |
| Software & IT Systems | ~every 2 months | Aug 2026 |
| IT Services | ~every 2 months | Aug 2026 |
| Engineering & Architecture | ~every 6 months | Nov 2026 |
Who wins here
Suppliers with the most published contract awards from NATIONAL ENERGY SYSTEM OPERATOR LIMITED.
- Efficio Limited3 wins
- SALESFORCE UK LIMITED2 wins
- GOWLING WLG (UK) LLP1 win
- Insight Direct (UK) Limited1 win
- Jones Lang LaSalle Limited1 win
- Microsoft Limited1 win
- PROAV LIMITED1 win
- BDO LLP1 win
Who could bid next time →
Suppliers proven on this kind of work — with NATIONAL ENERGY SYSTEM OPERATOR LIMITED and with buyers like it. Every name is a published contract award.
Open opportunities
Nothing open right now.
Recent tenders
Value not publishedPublished 26 May 2026 (26 May 2026)Engineering & ArchitectureSME-friendly
Value not publishedPublished 22 May 2026 (22 May 2026)Agriculture & ForestryBusiness ServicesConstructionSustainabilitySME-friendly
Value not publishedPublished 22 May 2026 (22 May 2026)ConstructionSecurity & DefenceSME-friendly
Value not publishedPublished 22 May 2026 (22 May 2026)ConstructionSecurity & DefenceSME-friendly
Value not publishedPublished 22 May 2026 (22 May 2026)ConstructionSecurity & DefenceSME-friendly
Value not publishedPublished 22 May 2026 (22 May 2026)ConstructionSecurity & DefenceSME-friendly
Value not publishedPublished 22 May 2026 (22 May 2026)Communications EquipmentIT ServicesSoftware & IT Systems
Value not publishedPublished 22 May 2026 (22 May 2026)IT Services
Value not publishedPublished 22 May 2026 (22 May 2026)IT ServicesSoftware & IT Systems
Value not publishedPublished 22 May 2026 (22 May 2026)Business ServicesIT ServicesSoftware & IT Systems