---
title: "2025-104 Major Projects Cost Assessment"
ocid: "ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "PROACTIS TENDERS LIMITED"
published: "2026-05-19"
---

# 2025-104 Major Projects Cost Assessment

Buyer: PROACTIS TENDERS LIMITED  
Current stage: Award  
OCID: ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e

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## Summary

The procurement process led by PROACTIS TENDERS LIMITED involves a public contract titled "2025-104 Major Projects Cost Assessment," which falls under the industry category of project management consultancy services. This contract supports Ofgem in its Accelerated Strategic Transmission Investment (ASTI) and Large Onshore Transmission Investments (LOTI) project assessments. The opportunity was awarded on 17 December 2025 and is active, with the service period running from 18 December 2025 to 31 March 2028. The procurement method employed was a direct, single tender action below threshold, highlighting its suitability for smaller enterprises. The project aims to align with the UK Government's 2030 Net Zero ambitions and covers multiple locations, including the United Kingdom and various British Overseas Territories.

This contract offers significant opportunities for businesses specialising in project management and consultancy services, particularly those experienced in cost assessment and electricity transmission projects. SMEs are encouraged to participate due to the directed procurement process, which may offer a competitive advantage for smaller firms. Companies like Atkinsrealis, awarded this contract, illustrate the type of organisations well-suited for involvement. The scope and complexity of the desired services can lead to substantial business growth for skilled consultants capable of supporting strategic initiatives in the energy sector.

## Notice

Accelerated Strategic Transmission Investment (ASTI) is a regulatory approval and funding framework for onshore transmission projects required to deliver the Government's 2030 Net Zero ambitions. It applies to 26 transmission projects with the aim to facilitate accelerated delivery. Large Onshore Transmission Investments (LOTI) assesses large electricity transmission projects that come forward during the RIIO-ET2 price control and potentially RIIO-3, period. Transmission Operators (TO's) submit applications under ASTI and LOTI for project assessment which are reviewed by Ofgem. Ofgem requires the support of a supplier to support on the Large Transmission Project Delivery Team (LPTD) with their ASTI and LOTI Project Assessments, in particular reviewing cost estimates and identifying potential areas of efficiency.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/92054f05-48ba-4272-8d92-af1d9e917217 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Single tender action (below threshold) |
| Tender suitability | SME |
| Awardee scale | Not specified |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 May 2026 |
| Submission deadline | 16 Dec 2025 |
| Future notice date | Not specified |
| Award date | 17 Dec 2025 |
| Contract period | 18 Dec 2025 - 31 Mar 2028 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £250,000 |
| Lots value | Not specified |
| Awards value | £250,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Not specified |
| Awards status | Active |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | PROACTIS TENDERS LIMITED |
| Locality | LONDON |
| Post town | East London |
| Postcode | E14 4PU |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI4 Inner London - East |
| ITL 3 | TLI42 Tower Hamlets |
| Local authority | Tower Hamlets |
| Electoral ward | Canary Wharf |
| Westminster constituency | Poplar and Limehouse |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | ATKINSREALIS |

## CPV Codes

### Divisions

- 72 - IT services: consulting, software development, Internet and support
- 79 - Business services: law, marketing, consulting, recruitment, printing and security

### Codes

- 72224000 - Project management consultancy services
- 79400000 - Business and management consultancy and related services

## Release History

- 19 May 2026 at 08:01 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/92054f05-48ba-4272-8d92-af1d9e917217

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/92054f05-48ba-4272-8d92-af1d9e917217
  19th May 2026 - Awarded contract notice on Contracts Finder
- https://www.mytenders.co.uk/search/show/search_view.aspx?ID=JAN170808
  NOTE: To register your interest in this notice and obtain any additional information please visit the myTenders Web Site at the link provided.

## Notice URLs

- http://www.ofgem.gov.uk

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-714a73d8-bf48-4d45-a1a6-f6d2714f1a5e.json.