NATIONAL ENERGY SYSTEM OPERATOR LIMITED tenders

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

UPCOMINGFind a Tender

Building Refurbishments and Mechanical and Electrical Projects Framework

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

Provision of building refurbishment services and Mechanical and Electrical Projects

Sources Find a TenderPublished 23 May 2025Reference ocds-h6vhtk-05223b-2025-05-23T12:39:33+01:00Sector 45453100 — Refurbishment work

£32.1mEstimated value

UPCOMINGFind a Tender

Design and Project Services Framework

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ11

Provision of capital works design and project management services.

Sources Find a TenderPublished 23 May 2025Reference ocds-h6vhtk-05223a-2025-05-23T12:39:13+01:00Sector 71320000 — Engineering design services

£2mEstimated value

AWARDEDFind a Tender

Security Information Event and Management Software and Professional Services

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UKJ

Provision of security information event and management software

Sources Find a TenderPublished 16 May 2025Reference ocds-h6vhtk-051626-2025-05-16T15:42:30+01:00Sector 72260000 — Software-related services

Value not statedNo published estimate

UPCOMINGFind a Tender

PENETRATION TESTING SERVICES

NATIONAL ENERGY SYSTEM OPERATOR LIMITED · UK

As part of the separation from National Grid Group and transformation into NESO under UK Government ownership, NESO are looking to create their own penetration testing framework to ensure that we can provide assurance over the security of our systems and provide a secure service to Great Britain. To achieve this, NESO requires a

Sources Find a TenderPublished 13 Jan 2025Closes 31 Jan 2025Reference ocds-h6vhtk-04cf69-2025-01-13T09:30:23ZSector 48200000 — Networking, Internet and intranet software package

£750kEstimated value

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.