UK’s AI Ambitions Threatened by Critical Fibre Bottleneck, New Research Warns
A lack of investment in core fibre networks could derail the United Kingdom’s aspirations to become a global leader in artificial intelligence, according to a new study released today. The research, conducted by Neos Networks in partnership with Censuswide, reveals widespread concern among datacentre operators, enterprises, and local government officials that insufficient fibre infrastructure is already hindering AI development and investment.
AI Fueling Datacentre Demand, But Fibre Lags Behind
The rapid adoption of AI across various industries is driving unprecedented demand for datacentre capacity. However, the study – completed in August and September 2025 – indicates that this expansion is being significantly hampered by a critical shortage of high-capacity fibre networks. A consensus emerged from surveying 100 datacentre decision-makers, 100 large enterprise tech/IT leaders (representing companies with 1,000+ employees), and 100 local government stakeholders.
“AI is no longer a future ambition, it’s here today, reshaping how businesses, communities and governments operate,” a company release stated. “But the UK cannot lead in AI on yesterday’s infrastructure, and we need continued investment in the fibre backbones that connect every region of the country.”
Regional Shift in AI Investment Faces Infrastructure Challenges
While London remains a focal point for AI investment, momentum is building in the North of England and the Midlands, with 39% of datacentre operators anticipating growth in these regions. This diversification is mirrored by a trend toward edge computing, with nearly all (97%) datacentre operators expecting up to half of their UK compute capacity to be located at the network edge by 2030. However, this regional expansion is directly contingent on the availability of robust fibre infrastructure.
The UK government’s AI Growth Zones, outlined in the AI opportunities action plan, are already influencing investment decisions. 96% of datacentre operators reported that these zones are impacting their expansion and site selection, with 44% considering them a strong influence. Over two-thirds of enterprises also view these zones as a key driver of change in their infrastructure planning.
Delays and Doubts: The Impact of Fibre Shortages
The impact of fibre scarcity is already being felt. A staggering 82% of UK datacentre operators have experienced delays in site builds or expansions due to fibre availability. Almost half (45%) of enterprises identified fibre as the primary bottleneck impeding AI and digital infrastructure development. Worryingly, 16% of companies expressed doubt about the UK’s current fibre infrastructure’s ability to support their AI ambitions.
“Over the past decade, we’ve seen a huge amount of investment in last-mile fibre builds, but core fibre networks across the country have received much less attention,” a senior official stated. “Without them, workloads cannot move between datacentres, data cannot be trained and investments stall.”
Local Governments Sound the Alarm
Local government stakeholders are equally concerned. 89% reported that fibre gaps have delayed infrastructure projects in their regions, with 46% stating their region’s fibre infrastructure is not yet ready to support AI datacentres. More than 70% of enterprises believe the UK’s attractiveness for datacentre investment requires improvement (53%) or is currently lagging (17%).
A Path Forward: Investing in Fibre Backbones
The report emphasizes that investment in new, high-capacity fibre corridors is critical to unlocking future growth. Nearly all respondents agreed that such investment would significantly boost confidence in the UK’s ability to attract and scale AI projects. 95% of datacentre operators, 96% of enterprises, and 96% of local authorities believe new fibre corridors into underserved areas would positively impact AI and datacentre growth. Over half of local authorities (53%) consider these projects potentially transformative for their regions.
According to Neos Networks CEO Lee Myall, the UK possesses the ambition, demand, and regional readiness to lead in AI, but failing to address fibre gaps risks squandering a “greatest economic opportunity” of a generation. The call to action is clear: sustained investment in the fibre backbones connecting every region of the country is essential for the UK to compete and thrive in the global AI race.
