nexfibre / Substantial merger inquiry

The Competition and Markets Authourity (CMA) is seeking views on the anticipated acquisition by Liberty Global, Telefónica and InfraVia, through their joint venture nexfibre, of Substantial (including Netomnia, Brsk, Brsk ISP and YouFibre). Liberty Global and Telefónica are the joint owners of Virgin Media O2 and, together with InfraVia, joint owners of nexfibre.

Statutory timetable

Phase 1 Action
TBC Deadline for phase 1 decision
TBC Launch of merger inquiry
23 April 2026 to 8 May 2026 Invitation to comment (*)

(*) The CMA is inviting comments from any interested party. This case page will be updated when the CMA formally commences its phase 1 investigation.

Invitation to comment: closes 8 May 2026

The CMA is issuing this ‘invitation to comment’ to allow interested parties to submit to the CMA any initial views on the impact that the transaction could have on competition in the UK. The CMA has not yet launched its formal investigation into this transaction. This invitation to comment is the first part of the CMA’s information-gathering process.

To assist it with this assessment, the CMA invites comments on the transaction from any interested party.

Written representations about any competition issues should be provided by 8 May 2026.

Pre-notification

The CMA has received the necessary information from the parties to commence pre notification.

Contact

Please send written representations about any competition issues to: nexfibre.substantial@cma.gov.uk

Your name and contact details are your personal data. In collecting, receiving, storing, accessing and using your personal data, the CMA, as controller, is processing your personal data. The CMA processes personal data in accordance with data protection law. The CMA is processing your personal data so that it can contact you again, should it need further help or information from you, in order to carry out its merger work under Part 3 of the Enterprise Act 2002. For more information about how the CMA processes personal data and your rights relating to that data, please see our Privacy Notice.

Updates to this page

Published 23 April 2026