---
title: "C471523 - Colindale - Porton Down National Ethernet Fibre Circuit"
ocid: "ocds-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c"
markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c.md"
json_url: "https://d3tenders.com/contract/ocds-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c.json"
source: "Contracts Finder"
current_stage: "Award"
buyer: "UK Health Security Agency"
published: "2026-10-01"
---

# C471523 - Colindale - Porton Down National Ethernet Fibre Circuit

Buyer: UK Health Security Agency  
Current stage: Award  
OCID: ocds-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c

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## Summary

UK Health Security Agency procured a 10-gigabit national Ethernet fibre circuit to connect its Colindale and Porton Down sites. This is a high-capacity data transmission service providing connectivity between two public health agency locations. The delivery locations are Colindale and Porton Down, including the Porton Down site in Wiltshire. The requirement concerns provision of the circuit rather than general telecommunications or network equipment. UK Health Security Agency is the buyer.

The procurement is complete and was awarded to Exponential-e Limited. The award date was 25 September 2026. The awarded contract value is £108,625. The contract runs from 25 September 2026 to 24 September 2031. The buyer used a selective process as a call-off from a framework agreement. The requirement was identified as suitable for small and medium-sized businesses. The available procurement details describe the service and its connection endpoints; no further evaluation basis is recorded in the process information.

This award demonstrates UK Health Security Agency’s demand for a high-capacity Ethernet fibre connection between its Colindale and Porton Down facilities, over a multi-year contract. Suppliers competing for a comparable requirement would need to provide national Ethernet connectivity capable of delivering 10-gigabit bandwidth between specified sites, and to support a long-term service for a public-sector customer. The route used was a framework call-off, so a credible competitor would need access to an appropriate framework and the ability to meet its call-off requirements. The buyer marked the requirement as suitable for SMEs, indicating that smaller providers could be relevant where they can deliver the required network reach and capacity. This is evidence of a specific inter-site connectivity requirement, rather than a broad network transformation or equipment purchase.

## Notice

Procurement of a 10 Gigabit National Ethernet Fibre Circuit to connect the Colindale and Porton Down sites.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Contracts Finder |
| Latest notice | https://www.contractsfinder.service.gov.uk/Notice/194a5908-fa28-43b4-830c-e92717cb39a5 |
| Notice type | Award Notice |
| Procurement type | Framework |
| Procurement category | Not specified |
| Procurement method | Selective |
| Procurement method details | Call-off from a framework agreement |
| Tender suitability | SME |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 1 Oct 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 25 Sep 2026 |
| Contract period | 25 Sep 2026 - 24 Sep 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £108,625 |
| Lots value | Not specified |
| Awards value | £108,625 |
| 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 | UK Health Security Agency |
| Locality | LONDON |
| Postcode area | 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 | TLC North East (England), TLD North West (England), TLF East Midlands (England), TLG West Midlands (England), TLH East (England), TLJ South East (England), TLK South West (England) |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | EXPONENTIAL-E LIMITED |

## CPV Codes

### Divisions

- 64 - Postal and telecommunications services

### Codes

- 64210000 - Telephone and data transmission services

## Release History

- 1 Oct 2026 at 14:14 - Award - Award Notice - https://www.contractsfinder.service.gov.uk/Notice/194a5908-fa28-43b4-830c-e92717cb39a5

## Documents

- https://www.contractsfinder.service.gov.uk/Notice/194a5908-fa28-43b4-830c-e92717cb39a5
  1st October 2026 - Awarded contract notice on Contracts Finder
- https://www.contractsfinder.service.gov.uk/Notice/Attachment/b80b4e5e-eb45-4244-87e7-158d71ef58ae
  C471523 -RM6116 Order Form FULLY SIGNED__Redacted

## 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-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-4650492a-6fb8-404c-acb2-d5ff4e1b117c.json.