CityFibre has secured more than £1.4 billion in what the company describes as the largest-ever capital raise for a UK full-fibre rollout. This new milestone follows an additional equity commitment of £300 million from Mubadala Investment Company, an existing shareholder.
Greg Mesch, Chief Executive of CityFibre, said the fresh investment reflects growing confidence in the business and the broader market demand for carrier-neutral wholesale network competition at scale. He emphasized that CityFibre’s model is driving further investment, improving services, and delivering better value. With continued backing from Mubadala, the company says it is well positioned to complete its nationwide full-fibre ambitions and contribute to efforts to level up digital infrastructure across the UK.
Mubadala first invested £500 million into CityFibre as part of a wider financing round in September 2021, alongside Interogo. Those investors joined earlier backers including Antin Infrastructure Partners and the infrastructure arm of Goldman Sachs Asset Management. In total, the funding commitments received by CityFibre in the past six months amount to approximately £1.425 billion.
CityFibre is currently the largest full-fibre provider across 26 UK cities, and the recent capital will support the company’s ongoing rollout. The operator is executing a multi-billion pound programme—valued at around £4 billion—aimed at deploying full-fibre infrastructure to reach up to eight million homes by 2025. Deployments are underway in more than 60 major metropolitan areas and extend across roughly 285 cities, towns, and villages.
As a wholesale-only, carrier-neutral network provider, CityFibre makes its infrastructure available to both business and consumer internet service providers. Major retail partners include Vodafone, TalkTalk, Zen, and more than 30 independent ISPs across the UK, as well as service integrators and mobile operators. This wholesale approach is intended to foster competition among downstream providers and expand consumer choice.
CityFibre notes that its city-wide networks are designed to meet the digital needs of multiple market verticals, including the public sector and enterprise customers. The company also highlights the role of its infrastructure in enabling 5G rollouts and supporting Smart City initiatives, helping local authorities and businesses to deploy advanced digital services.
The operator’s network technology is fully upgradeable; CityFibre says it can support future services at speeds of 100 Gbps and beyond, ensuring the platform can accommodate evolving bandwidth requirements for both commercial and residential users.
(Image Credit: CityFibre)
Events and industry learning
For professionals interested in 5G and related opportunities, industry expos and conferences provide practical insights and networking with technology leaders. Upcoming events in the 5G Expo series and other industry gatherings offer sessions on deployment strategies, business cases, and the technologies that complement full-fibre and wireless networks. These events typically feature speakers from operators, infrastructure investors, vendors, and public sector organisations, focused on how connectivity projects are planned, financed, and delivered.
CityFibre’s recent capital raise underlines the significant investor appetite for large-scale digital infrastructure projects in the UK. Continued funding will be central to meeting ambitious nationwide targets for fibre coverage, supporting competition at the retail level, and enabling advanced services for homes, businesses, and public services across the country.