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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 value
Open2£89.5mCombined published value
Closed0—No published tender values
Awarded19£66.8mCombined published value
Cancelled0—No published tender values
ISSUED TENDERS

44 tenders

All · 44Open · 2Closed · 0Awarded · 19Cancelled · 0

Salesforce Platform Licensing and Support Services

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

Provision of Salesforce Platform licensing, associated SaaS platform services, and support arrangements required to support NESO's customer-facing and operational activities, including Connections and Market Registration services. The contract will ensure continuity of service following TSA exit arrangements and includes the ren

Sources Find a TenderPublished 26 Jun 2026Reference 060344-2026
Multiple contractsSee individual contracts in details

NESO Surveyor Agency RFP

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

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 up to eight regional offices across the UK (including Glasgow and Cardiff). In addition, the appointed agent will also provide ongoing estate sup

Sources Find a TenderPublished 18 Jun 2026Reference 057760-2026
£2.5mContract value · excl. VAT£3m incl. VAT

Microsoft Enterprise and On-Premise Infrastructure Licensing Agreement

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

Provision of Microsoft Enterprise and on-premise infrastructure licences, including associated software subscriptions and reseller services, to support NESO's core business operations and transition from the existing TSA arrangement.

Sources Find a TenderPublished 8 Jun 2026Reference 053722-2026Sector 48000000 — Software package and information systems
£11.8mContract value

Procurement Services

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

Procurement Consultancy Services

Sources Find a TenderPublished 27 May 2026Reference 049350-2026
£7.7mContract value · excl. VAT£9.2m incl. VAT

NESO Engineering Support Services

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

The contracting authority (NESO) is considering the potential establishment of an Engineering Services framework, likely with a single supplier, to support access to specialised and scarce engineering expertise. The objective is to facilitate timely access to skills, advisory capability, and delivery support to enhance operation

Sources Find a TenderPublished 26 May 2026Reference 048705-2026Sector 71300000 — Engineering services
Value not statedNo published estimate

NESO Facilities Management Services Framework

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

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 soft facilities management services, including associated minor works, refurbishment, repair and maintenance activities. NESO retains the right to pr

Sources Find a TenderPublished 22 May 2026Reference 048294-2026Sector 45261900 — Roof repair and maintenance work
Value not statedNo published estimate

NESO Workplace Fit-Out, Refurbishment and Associated Works (East England)

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

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 the available external framework agreements. However, the procurement route remains subject to ongoing strategy development, and may therefore be revi

Sources Find a TenderPublished 22 May 2026Reference 048293-2026Sector 35120000 — Surveillance and security systems and devices
Value not statedNo published estimate

NESO Workplace Fit-Out, Refurbishment and Associated Works (North England)

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

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 the available external framework agreements. However, the procurement route remains subject to ongoing strategy development, and may therefore be revi

Sources Find a TenderPublished 22 May 2026Reference 048292-2026Sector 35120000 — Surveillance and security systems and devices
Value not statedNo published estimate

NESO Workplace Fit-Out, Refurbishment and Associated Works (Wales)

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

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 the available external framework agreements. However, the procurement route remains subject to ongoing strategy development, and may therefore be revi

Sources Find a TenderPublished 22 May 2026Reference 048291-2026Sector 35120000 — Surveillance and security systems and devices
Value not statedNo published estimate

NESO Workplace Fit-Out, Refurbishment and Associated Works (Midlands)

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

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 the available external framework agreements. However, the procurement route remains subject to ongoing strategy development, and may therefore be revi

Sources Find a TenderPublished 22 May 2026Reference 048290-2026Sector 35120000 — Surveillance and security systems and devices
Value not statedNo published estimate

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.