---
title: "Implementation and Management of NGN Network & Voice Services (SD-WAN, WAN, LAN, WLAN, UC & CC)"
ocid: "ocds-h6vhtk-050d42"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050d42"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-050d42.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-050d42.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "NORTHERN GAS NETWORKS LIMITED"
published: "2025-05-06"
---

# Implementation and Management of NGN Network & Voice Services (SD-WAN, WAN, LAN, WLAN, UC & CC)

Buyer: NORTHERN GAS NETWORKS LIMITED  
Current stage: Tender  
OCID: ocds-h6vhtk-050d42

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-050d42)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-050d42.json)

## Summary

Northern Gas Networks Limited, based in Colton Leeds, is seeking to implement and manage their network and voice services through a tender process titled "Implementation and Management of NGN Network & Voice Services (SD-WAN, WAN, LAN, WLAN, UC & CC)." This procurement, classified under the IT services category, involves providing a comprehensive solution for network and voice service management. The procurement stage is currently in the tender phase, with a competitive flexible procedure being used. The expression of interest deadline is set for 2nd June 2025, with the enquiry period concluding on 28th May 2025. The contract, valued at a gross amount of £5.04 million, has a projected start date of 1st July 2026, and can be extended up to a maximum date of 30th June 2034.

This tender presents significant opportunities for businesses specialising in network and voice solutions, especially those experienced in software-defined networks, cloud services, and unified communication systems. Companies with a strong track record in IT services, particularly those with capabilities in WAN, SD-WAN, LAN, WLAN, and contact centre solutions, are well-positioned to compete. The procurement process includes a selective approach, inviting suppliers to tender based on their preliminary qualifications. Businesses able to demonstrate a balanced mix of commercial and quality criteria, particularly excelling in non-commercial attributes, will find this tender an attractive opportunity for growth and partnership with a major private utility in the UK.

## Notice

The existing network and voice service management contracts are approaching renewal with our current service provider. In this tender process, NGN is interested in exploring implementing a new network and voice solution. This will also include providing NGN with a comprehensive service for the management of the implemented network and voice services. The successful supplier will be responsible for the comprehensive solution implementation and management of NGN's network and voice services. The scope includes, but is not limited to: - Wide Area Network (WAN) - Software-Defined Wide Area Network (SD-WAN) - Next Generation Firewalls (NGFW) - Local Area Network (LAN & WLAN) - Cloud Services - Voice Unified Comms (UC) - Voice Contact Centre (CC)

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/019145-2025 |
| Notice type | UK4 - Tender Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Selective |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 May 2025 |
| Submission deadline | 28 May 2025 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 30 Jun 2026 - 30 Jun 2029 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £4,200,000 |
| Lots value | £4,200,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | NORTHERN GAS NETWORKS LIMITED |
| Locality | COLTON LEEDS |
| Post town | Leeds |
| Postcode | LS15 8TU |
| Country | England |
| ITL 1 | TLE Yorkshire and The Humber |
| ITL 2 | TLE4 West Yorkshire |
| ITL 3 | TLE42 Leeds |
| Local authority | Leeds |
| Electoral ward | Garforth & Swillington |
| Westminster constituency | Leeds East |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 72 - IT services: consulting, software development, Internet and support

### Codes

- 72000000 - IT services: consulting, software development, Internet and support

## Release History

- 6 May 2025 at 14:15 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/019145-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/019145-2025
  6th May 2025 - Tender notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/Attachment/A-1141

## Notice URLs

- https://marketdojo.com/
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## 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-h6vhtk-050d42. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-050d42.json.