Buyer profile
NATIONAL ENERGY SYSTEM OPERATOR LIMITED
Get alerts when NATIONAL ENERGY SYSTEM OPERATOR LIMITED publishes a new tender — 7-day free trial, then £4.99/month.
Total contracts
46
Known spend
£454m
25 disclosed
Average value
£18m
Per contract
Active suppliers
10
Last 5 years
Top suppliers
Last 5 years- 1
Efficio Limited
£8m
- 2
GOWLING WLG (UK) LLP
£18m
- 3
DLA PIPER UK LLP
£17m
- 4
TLT LLP
£11m
- 5
PALANTIR TECHNOLOGIES UK, LTD.
£17m
- 6
SHAKESPEARE MARTINEAU LLP
£17m
- 7
DENTONS UK AND MIDDLE EAST LLP
£17m
- 8
ADDLESHAW GODDARD LLP
£17m
- 9
SOFTCAT PLC
1 winlatest 01 Aug 2026£14m
- 10
SALESFORCE UK LIMITED
£4m
What they buy
By CPV categoryIT servicesCPV 72
5 contracts · £3m
Business servicesCPV 79
4 contracts · £10m
SoftwareCPV 48
2 contracts · £12m
Companies House
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · 11014226active
Incorporated
Oct 2017
Last accounts filed
Mar 2025
Next accounts due
Dec 2026
Active officers
14
Active officers
- FAVIER-TILSTON, Clairesecretary
- MORRISSEY, Zoe Elisesecretary
- CRACKETT, Johndirector
- DUFFY, Clare Siobhandirector
- FITZGERALD, Emma, Drdirector
- GOLBY, Paul, Drdirector
- LEGGE, Kayte Anne Evedirector
- LINWOOD, John Frederickdirector
SIC codes
Tender activity
Notices published per month — last 24 months
All contracts (46)
HPE CNI support & professional services
National Energy System Operator Limited (NESO) intends to award an interim contract to Hewlett-Packard Limited (HPE) for the provision of support, maintenance and associated Profes
NESO interim capability
The National Energy System Operation (NESO) has awarded an interim capability agreement to Palantir Technologies UK Limited to continue licensing and support for its Connections and Skip Rate activities. This is a short‑term contract to keep those services running while a longer‑term solution is developed.
DSI phase 2
The Data Sharing Infrastructure (DSI) is a socio-technical solution that makes it easier for the energy sector to share data and models in a scalable, secure, and resilient way by
NESO coach services tender
NESO is seeking a single provider of a fully managed coach service, including electrical vehicles, drivers, maintenance, cleaning, and garaging, to operate employee shuttle buses b
Value added reseller services - microsoft azure
The National Energy System Operator (NESO) has a call‑off contract with Softcat to act as a value‑added reseller for Microsoft Azure services under Lot 3 of the Technology Products & Associated Services 2 (RM6098) framework.
Maintenance and support for ECP and OPDE
Provision of ongoing maintenance and application operation support services for NESO's European Energy Communication Platform (ECP) and Operational Planning Data Environment (OPDE)
Strategic enterprise modelling capability solution
NESO is inviting suppliers to take part in pre-market engagement to help us understand market capability, appetite and enterprise solution options for Strategic Capability for end-
Lead legal services provider for project echo
The National Energy System Operator ("NESO") is running a mini-competition under the NESO Legal Framework Agreement to appoint a Lead Legal Services Provider to support Project Ech
Technical consultancy framework
Technical Consultancy Framework shall be a multi-lot framework. Works shall be awarded in line Framework Call-Off Procedure. The framework shall consist of 5 lots covering numerous
Salesforce platform licensing and support services
Provision of Salesforce Platform licensing, associated SaaS platform services, and support arrangements required to support NESO's customer-facing and operational activities, inclu
Microsoft unified support (only available from microsoft)
National Energy System Operator (NESO) has awarded a call-off contract under the CCS G-Cloud 14 Framework (RM1557.14) for the provision of Microsoft Unified Support services. The c
NESO surveyor agency RFP
NESO will engage a single surveyor to support multiple property acquisitions throughout the next 5 years (3+1+1) , including a corporate headquarters, an operational facility, and
RM6098 technology services 3 project management tool
Provision of project management software licences and associated support services via further competition under the Crown Commercial Service RM6098 Technology Services 3 framework.
Microsoft enterprise and on-premise infrastructure licensing agreement
NESO needs a Microsoft licensing partner to supply and manage their enterprise software licences (Microsoft 365, servers, and infrastructure software). They're switching away from their current arrangement and need a reseller to handle the supply, administration, and ongoing management of these licences to keep their business running smoothly and securely.
Procurement services
Procurement Consultancy Services
NESO engineering support services
The contracting authority (NESO) is considering the potential establishment of an Engineering Services framework, likely with a single supplier, to support access to specialised an
NESO facilities management services framework
The procurement relates to the establishment of a Facilities Management Services Framework across NESO estate within the UK. The framework may include the provision of hard and/ or
NESO workplace fit-out, refurbishment and associated works (east england)
The procurement relates to office fit-out and refurbishment works across NESO estate locations within the UK. NESO currently intends to competitively procure the works via one of t
NESO workplace fit-out, refurbishment and associated works (north england)
The procurement relates to office fit-out and refurbishment works across NESO estate locations within the UK. NESO currently intends to competitively procure the works via one of t
NESO workplace fit-out, refurbishment and associated works (wales)
The procurement relates to office fit-out and refurbishment works across NESO estate locations within the UK. NESO currently intends to competitively procure the works via one of t