BUYING ORGANISATION
NATIONAL ENERGY SYSTEM OPERATOR LIMITED
Published procurement activity · 44 tenders
ORGANISATION DETAILS
NATIONAL ENERGY SYSTEM OPERATOR LIMITED
Buyer information published with procurement notices.
- Published identifier
- GB-COH 11014226
- Address
- Wokingham, UKJ11, RG41 5BN, United Kingdom
- First notice
- 13 Jan 2025
- Latest notice
- 15 Oct 2026
Contracts FinderFind a Tender
All tenders44£500.7mCombined published valueOpen2£89.5mCombined published valueClosed0—No published tender valuesAwarded19£66.8mCombined published valueCancelled0—No published tender values NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Establishment of a VAR to support procurement of low-complexity technology goods and services
Sources Find a TenderPublished 22 May 2026Reference 048265-2026Sector 32400000 — Networks
Value not statedNo published estimate
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Provision of modelling software licences and compute capacity for energy market simulations
Sources Find a TenderPublished 22 May 2026Reference 048262-2026Sector 72000000 — IT services: consulting, software development, Internet and support
Value not statedNo published estimate
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Enterprise CRM platform licensing and associated services for customer relationship management
Sources Find a TenderPublished 22 May 2026Reference 048251-2026Sector 48445000 — Customer Relation Management software package
Value not statedNo published estimate
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Financial Audit Services - annual audit services
Sources Find a TenderPublished 22 May 2026Reference 048247-2026
£1.9mContract value · incl. VAT
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Managed SOC and SIEM services for continuous monitoring, threat detection, and response
Sources Find a TenderPublished 22 May 2026Reference 048245-2026Sector 48730000 — Security software package
Value not statedNo published estimate
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Provision of market modelling software and advisory services supporting European energy market analysis
Sources Find a TenderPublished 22 May 2026Reference 048242-2026Sector 71314000 — Energy and related services
Value not statedNo published estimate
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
Subscription for Integrated Electricity Management System software supporting network operations and optimisation
Sources Find a TenderPublished 22 May 2026Reference 048231-2026Sector 48000000 — Software package and information systems
Value not statedNo published estimate
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
The National Energy System Operator ("NESO") conducted a mini-competition under the NESO Legal Framework Agreement to appoint a lead provider to support NESO's Strategic Energy Planning (SEP) directorate that can bring deep sector expertise.
Instructions will range from pre-planned work packages to smaller, discrete unplanned a
Sources Find a TenderPublished 21 May 2026Reference 047451-2026
£1.5mContract value · excl. VAT£1.8m incl. VAT
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
NESO is seeking a single supplier to provide a range of travel services under one solution - Travel Management System (TMS). These services can broadly be broken down as follows: Air, Rail. Hotel, Venue, Groups, Restaurants, Taxi, Car hire, and any other related auxiliary services linked to the Travel Booking Services compliant
Sources Find a TenderPublished 22 Apr 2026Reference 036551-2026Sector 63516000 — Travel management services
£29mEstimated value
NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11
National Energy System Operator (NESO) is awarding a framework agreement under competitive flexible procedure across a full range of legal services to support NESO's requirements and activities.
Suppliers will partner with the internal NESO Legal team to provide high quality advice and support NESO to meet its objectives.
The fr
Sources Find a TenderPublished 25 Feb 2026Reference 017069-2026
Multiple contractsSee individual contracts in details
Organisation details and tender classifications reflect information published by the original procurement sources. Similar buyer names are grouped only where an official identifier or compatible name and postcode provide a safe link.