The transaction, agreed through the trio’s existing joint venture nexfibre, values Netomnia’s parent Substantial Group at an enterprise value of approximately £2 billion. The deal is expected to unlock £3.5 billion of international investment into the UK, reinforcing the market’s position as a key destination for long-term infrastructure capital.

The acquisition creates a scaled wholesale challenger at a time when many alternative network operators are facing mounting build costs, competitive pressure and tightening financing conditions.

By combining nexfibre’s resources with Netomnia’s expanding full-fibre footprint, the investors aim to strengthen their position in a market long dominated by incumbent infrastructure providers.

Netomnia has been one of the faster-growing UK altnets in recent years, deploying full-fibre infrastructure across towns and cities outside the largest metropolitan cores. Its integration into nexfibre provides greater financial backing and operational scale, factors increasingly seen as critical as the sector moves from rapid rollout to commercial maturity.

The enlarged platform is expected to compete more directly with Openreach, the network arm of BT, in the wholesale fibre space. For wholesale customers and service providers, greater scale could translate into broader geographic reach and enhanced long-term certainty around network investment.

InfraVia, Liberty Global and Telefónica have already partnered in nexfibre to expand fibre coverage, with retail distribution supported by Virgin Media O2 under wholesale arrangements.

Industry observers have long predicted a wave of consolidation among UK altnets as overlapping build strategies and funding constraints prompt operators to seek stronger balance sheets. This transaction represents one of the clearest signals yet that the market is entering that next phase.

Completion of the acquisition remains subject to regulatory approval and customary closing conditions. If approved, it will further reshape the competitive dynamics of the UK wholesale fibre market, accelerating the shift towards fewer, larger infrastructure platforms capable of sustaining nationwide build ambitions.

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