Scope
Description
NESO is seeking a supplier to provide a range of procurement services. These services can broadly be broken down as follows:
Operations - The operations team act as the front door to Indirects and DD&T. Gateway and Triage of new operational requirements on behalf of Indirects and DD&T. P2P reconciliation of purchase orders and providing assurance that the standing financial instructions and compliance is upheld. Management of all £ 215k spend and below.
Indirects - end to end sourcing of all requirements over £ 215k. Contract management of all Indirect Suppliers. Expert knowledge of UCR, PCR, PA2023 including frameworks as local and national will be utilised specifically for Indirects.
DD&T -- end to end sourcing of all requirements over £ 215k. Expert knowledge of UCR, PCR, PA2023 including frameworks as local and national will be utilised specifically for IT. In addition management of the complex TSA exit process for DD&T.
Suppliers should refer to the procurement documents and specification for a full description of the scope of services.
Total value (estimated)
- £7,000,000 excluding VAT
- £8,400,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 1 February 2026 to 31 January 2028
- Possible extension to 30 January 2030
- 3 years, 11 months, 30 days
Description of possible extension:
2 x 12 month extensions subject to NESO approval.
Options
The right to additional purchases while the contract is valid.
The right to additional purchases while the contract is valid, as outlined in the procurement documents.
A rate card will be submitted as part of the tender process which will be utilised at the Authority's discretion in the event complex sourcing or security levels exceed the core team's ability.
Any additional requirements will be fully supported by a detailed specification enabling appropriate pricing using the agreed rate card. Projects may include: Security cleared personal for key national project delivery, complex sourcing involving construction or facilities management. Scope changes maybe required which are at the request of NESO's governing body which require rapid turnaround or expert skill which the core team do not have.
Main procurement category
Services
CPV classifications
- 79418000 - Procurement consultancy services
Contract locations
- UK - United Kingdom
Participation
Legal and financial capacity conditions of participation
As outlined in the procurement documentation.
Technical ability conditions of participation
As outlined in the procurement documentation.
Particular suitability
- Small and medium-sized enterprises (SME)
- Voluntary, community and social enterprises (VCSE)
Submission
Submission type
Requests to participate
Deadline for requests to participate
4 November 2025, 11:59pm
Submission address and any special instructions
All tenders must be submitted electronically via SAP Ariba.
https://www.sap.com/products/spend-management/ariba-login.html
Please send your Ariba Supplier number to: tennille.madigan@neso.energy to enable invitation to the tender.
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
28 January 2026
Award criteria
| Name | Description | Type | Weighting |
|---|---|---|---|
| Technical Criteria (Including Social Value). | As per Tender Instructions NESO reserves the right to refine the Technical award criteria pursuant to section 24 of the Procurement Act 2023. For example, this may include the weightings attributed to... |
Quality | 70% |
| Commercials | As per Tender Instructions |
Cost | 30% |
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Special regime
Utilities
Competitive flexible procedure description
Competitive flexible procedure description
· Stage 1: PSQ stage, including mandatory exclusion information, pass/fail requirements and conditions of participation that will be used to shortlist bidders on the basis of legal and financial capacity and technical ability.
· Stage 2: Tender stage, including initial tenders, presentations, and optional negotiations and final tenders (should NESO elect to hold negotiations).
· Stage 3: Contract award, NESO will award the contract to the Bidder who submits the most advantageous tender, subject to satisfactory completion of contract finalisation and internal governance processes.
The full procurement process and timeline is outlined in the Instructions to Tenderers (ITT).
NESO intends to shortlist up to 3 Bidders following the PSQ stage, subject to the tie break process outlined in the ITT.
Interested parties are required to complete Non-disclosure Agreements and Non-Collusion Declarations prior to being given access to the procurement documents.
Documents
Associated tender documents
https://support.ariba.com/item/view/174948
Please note that a SAP Ariba registration is required or can be requested via NESO procurement - tennille.madigan@neso.energy
https://support.ariba.com/item/view/KB0393464
Access the Ariba portal for all documents related to this tender you must have an Ariba AN ID number which can be created with SAP Ariba Support: https://support.ariba.com/item/view/KB0393464
Please contact tennille.madigan@neso.energy if you already have an Ariba Access number
Contracting authority
NATIONAL ENERGY SYSTEM OPERATOR LIMITED
- Companies House: 11014226
- Public Procurement Organisation Number: PHQL-5234-MWWV
St Catherine's Lodge Bearwood Road
Wokingham
RG41 5BN
United Kingdom
Email: tennille.madigan@neso.energy
Region: UKJ11 - Berkshire
Organisation type: Public undertaking (commercial organisation subject to public authority oversight)