CityFibre

CityFibre

Provides Full Fibre networks via ISPs

Overview

CityFibre builds and operates a wholesale full-fibre optic network across the UK to provide high-speed internet infrastructure for homes and businesses. The company installs physical fibre cables directly to premises and partners with various Internet Service Providers (ISPs) who use this infrastructure to deliver broadband services to their customers. Unlike traditional providers that sell directly to consumers, CityFibre acts as an open-access platform, allowing multiple ISPs to compete on its network rather than owning the customer relationship itself. Its goal is to connect 8 million homes across 285 locations by 2025 to support a more reliable digital economy.

Funded Recently

About CityFibre

Simplify's Rating
Why CityFibre is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Hardware

Industrial & Manufacturing

Company Size

1,001-5,000

Company Stage

Growth Equity (Venture Capital)

Total Funding

$6.1B

Headquarters

London, United Kingdom

Founded

2011

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Simplify's Take

What believers are saying

  • Record 2025 adjusted EBITDA of £29 million and 27% revenue growth to £170 million driven by XGS-PON adoption.
  • Extended VodafoneThree partnership secures preferred supplier status for 5G Standalone mobile transmission across the UK.
  • Pivoting to acquire weaker altnets positions CityFibre as the sector consolidator amid G.Network's collapse.

What critics are saying

  • £3.7 billion net debt amid high interest rates threatens solvency if consolidation fails or refinancing stalls by 2028.
  • Cutting 450 engineering jobs erodes build velocity and operational capacity, risking slowed network expansion within 12 months.
  • Declining ISP support quality threatens wholesale relationships with VodafoneThree and Sky, potentially slowing customer take-up by 2027.

What makes CityFibre unique

  • CityFibre is the UK's largest independent wholesale full fibre network, reaching nearly 5 million premises.
  • It operates a pure wholesale model partnering with 30+ ISPs like Sky, Vodafone, and TalkTalk.
  • The company delivers 10Gb XGS-PON infrastructure enabling multi-gig symmetrical speeds up to 8.5Gb for partners.

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Funding

Total Funding

$6.1B

Above

Industry Average

Funded Over

9 Rounds

Growth Equity VC funding comparison data is currently unavailable. We're working to provide this information soon!
Growth Equity VC Funding Comparison
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Growth & Insights and Company News

Headcount

6 month growth

3%

1 year growth

3%

2 year growth

2%
Fibre Provider
Jul 21st, 2026
Kingdom joins Axians UK as Director of Technology Service Provider and Utilities.

Kingdom joins Axians UK as Director of Technology Service Provider and Utilities. Tue, 21/07/2026 - 10:06 Stephen Kingdom has joined Axians as Director of Technology Service Provider and Utilities. He previously served as CTO, Fixed Networks at Xantaro and has held roles at NICC Standards, Huawei and NEC Europe/. He said: "This is an incredible opportunity to be part of an organization that is helping businesses transform through innovative technology solutions and exceptional service delivery. "I'm looking forward to working alongside talented colleagues, building strong partnerships, and contributing to Axians' continued success." 17 June, 2026, 9:20 am Daragh McDermott has stepped down from his role as CEO at JT Group following 26 years at the organisation, the last five of which were spent on the board. 29 May, 2026, 9:37 am G.Network has appointed Ivan Dunn as its new Channel Sales Manager to work closely with wholesale partners to expand access to the company's full fibre network. 19 September, 2025, 4:31 pm Ben Allwright has moved on from the role of CEO at Ogi after five years, handing the baton to co-founder, Sally-Anne Skinner on an interim basis. 2 September, 2025, 11:01 am CityFibre founder and CEO Greg Mesch is to step down with immediate effect according to a report in the FT that also says he will be succeeded by COO Simon Holden who joined the challenger altnet in 2019.

Fibre Provider
Jun 3rd, 2026
CityFibre passes 1m UK connections milestone.

CityFibre passes 1m UK connections milestone. Wed, 3/06/2026 - 10:33 CityFibre has connected more than 1m premises to its full fibre broadband network, marking a key milestone in its nationwide rollout as it seeks to expand competition in the UK market. The altnet provider said its network now reaches nearly 5m premises across the UK, underscoring the scale of its expansion over the past decade. Alongside its residential connections, CityFibre has delivered a further 16,000 for mobile operators, businesses and local authorities, including schools, hospitals and GP surgeries. Simon Holden, Chief Executive Officer (CEO) at CityFibre said the company's growth reflected a broader shift in the telecoms sector, driven by the emergence of alternative network providers challenging established operators. "The UK shifted up a gear with the arrival of the altnets," he said, adding that the increased competition is delivering tangible benefits to households and businesses nationwide. CityFibre also launched a new digital literacy initiative in partnership with education organisation, 8 billionideas. The programme aims to equip children with core digital skills through a resource known as The Tech Toolkit. The initiative is expected to reach around 5,000 schools each year, with a long-term target of engaging 1m pupils by 2030. Holden said the scheme is intended to ensure the next generation can confidently navigate an increasingly digital world. 27 April, 2026, 11:17 am Netomnia has completed more than 50,000 premises serviceable from the Brierley Hill exchange area in Dudley, in what it described as a major milestone in its west Midlands rollout. 31 March, 2026, 2:14 pm A Welsh Government funded grant scheme has been relaunched recently, transforming digital connectivity of 1,000 properties across Wales and supporting installation of fast, reliable broadband to residents unable to achieve a connection easily. 9 January, 2026, 12:00 pm South Yorkshire has now connected 95% of residents in the region to gigabit-capable broadband, reaching a major milestone in digital connectivity, and surpassing the target set in the South Yorkshire Digital Infrastructure Strategy. 17 December, 2025, 11:53 am Airband is marking a key milestone in its growth for 2025, connecting its 30,000th customer in Wrexham, North Wales, which is one of the first areas to benefit from the rollout of the company's Gigabit Fixed Wireless Access (FWA) technology.

Telecoms.com
Mar 31st, 2026
CityFibre launches 8.5Gb product across its network.

CityFibre launches 8.5Gb product across its network. UK fixed-line wholesaler CityFibre has announced a new 8.5Gb product on its 10Gb XGS-PON network, promising the "next generation of Multi-Gig connectivity." March 31, 2026 The product, as the name suggests, serves up speeds of up to 8.5Gb, enabling Internet Service Providers (ISPs) on the CityFibre network "to provide game changing services that power innovation and growth for homes, businesses and the UK economy," boasts the release. The introduction of it is the next evolution of CityFibre's Multi-Gig portfolio, we're told. It follows "record-breaking" growth in 2025, and the rollout of its 10Gb XGS-PON technology across its nationwide full fibre footprint, which currently reaching over 4.7 million premises and there are plans for it to reach more than 8 million. The firm is rolling out its 10Gb ONT - which is a small in-home device that converts the incoming full-fibre signal into a broadband connection - across all new customer installs, "meaning partners will be able to launch market-leading propositions across a network that's ready for future needs." "CityFibre is the UK's largest, most advanced full fibre network, setting the standard for what people should expect from their connection and enabling all our customers and partners, across consumer, business, mobile and the public sector, to innovate and grow," said Simon Holden, Chief Executive Officer at CityFibre. "Thanks to forward-thinking policy and regulation, and ambitious capital providers, CityFibre is transforming the UK's digital infrastructure and propelling the nation into the global fast lane." In a further bit of tangential boasting, the firm says it is clocking 30,000 customer adds each month as the company approaches one million customers, and in recent months, around 70% of households who were switching broadband provider moved onto the CityFibre network where available. The 8.5Gb product will be available to all of its ISP partners from April 21. In January CityFibre announced its FTTP broadband services for small businesses and home workers was available to 4.5 million premises across its footprint. The services have symmetrical speeds of up to 2.5Gb, and the expansion was enabled by the very same 10Gb XGS-PON upgrade. This followed a tripling of the availability of its enterprise-grade Ethernet services to serve over 260,000 UK businesses, resulting in over 50% YoY growth in the Ethernet sector for the firm last year, the firm said at the time. Later that month it published full year numbers which showed profits surging, with adjusted EBITDA rising to £29 million in 2025 from £5 million a year earlier. Revenue increased 27% to £170 million, with take-up of its XGS-PON network accelerating throughout the second half thanks partly to the launch of new customer Sky. Earlier this month there was some good news for the altnet sector in general - according to a report by INCA, altnets collectively added 850,000 broadband customers in 2025, which represents growth of 32% on-year, with many of their net adds switching from the big broadband providers. Deputy Editor Andrew joined Telecoms.com on the back of an extensive career in tech journalism and content strategy. Prior to Telecoms.com, he held numerous editorial, content marketing and publishing roles covering various technology markets. Want more Telecoms.com stories in your google search results? Join 56,000+ members. Yes it's completely free.

Thinkbroadband
Mar 27th, 2026
Weekly brief - 27/03/2026.

Weekly brief - 27/03/2026. Starlink offer reduces pricing in some areas to £25/month. Its friends over at ISPreview have found that Starlink have cut the price of its satellite broadband service to £25/month in some areas. This is a discount of £10/month for the first six months, but it is only available to new customers ordering before the end of April 2026. The discount appears to be available on a range of Starlink products. CityFibre looks to reduce the impact of roadworks. CityFibre is trialling traffic management technology from BUKO, which is designed to reduce congestion on adjacent routes when roads are closed. The technology is said to intercept satnavs to divert users more evenly across alternative routes. It also publishes data using Meta's platforms like Facebook to update users about upcoming diversions. Currently, the firm is testing this in Worthing, West Sussex. "We're excited to be trialling this impressive technology to benefit road users around the Worthing area. Improved communications with drivers will help us to deliver these essential works quickly and safely whilst also ensuring that drivers and residents are impacted as little as possible. It's a win-win." Adrian Smith, Partnership Manager, CityFibre EE confirms first XGS-PON trial customer live on 8Gbps service. The first customer to be connected to an 8Gbps full fibre XGS-PON service over Openreach is now live, according to news reported by ISPreview. This marks the first real-world deployment of XGS-PON on Openreach's network with the trial taking place in parts of West Surrey, including Guildford, Woking and nearby villages. To apply to sign up for the trial, you can visit the BT TrialCentre. VodafoneThree to deploy COWs (Cells on Wheels) at events this year. VodafoneThree has confirmed it will deploy temporary masts known as Cells on Wheels (COWs) at events this year. Cheltenham Race Festival saw these in use earlier this month, and other major sporting events, music festivals and shows, such as the London Marathon, Wimbledon, and the Scottish Open Golf Tournament, will see the herd of COWs deployed.

ISPreview UK
Mar 26th, 2026
CityFibre trial new tech to manage road traffic during UK broadband builds.

CityFibre trial new tech to manage road traffic during UK broadband builds. Thursday, Mar 26th, 2026 (10:11 am) - Score 0 Network operator CityFibre, which has so far deployed their 10Gbps capable full fibre (FTTP) broadband ISP network to cover 4.7 million UK premises (4.5m RFS), has partnered up with BUKO Digital to trial a new traffic (road) management technology to support the delivery of their publicly subsidised Project Gigabit works in West Sussex. The operator currently holds the Government's £108m (public subsidy) Project Gigabit contract for the West & East Sussex (Lot 16 & 1) area of England, which will see them extend their 10Gbps capable FTTP network to an additional 57,000 premises in hard-to-reach rural areas (here and here). NOTE: CityFibre is owned by Antin Infrastructure Partners, Goldman Sachs, Mubadala Investment Company, Interogo Holding etc. The network is supported by UK ISPs such as Vodafone, TalkTalk, Zen Internet, Sky Broadband and more (local ISP availability does vary). As part of this deployment the operator will, from 13th April 2026, need to close Long Furlong road in Worthing for approximately 10 days to complete the network build. Such closures can be highly disruptive for road users - especially on busy roads like this - and so CityFibre are looking to trial a new technology with BUKO Digital to "help keep drivers moving ahead of a road closure". The new Traffic Management technology is designed to improve communication with drivers, support smarter diversions and reduce any congestion on adjacent routes that can occur with road closures. "BUKO's technology intercepts satellite navigation tools such as SatNavs and Google Maps to divert road users more evenly across alternative routes. It also utilises Meta messaging platforms like Facebook to update regular users of affected routes on upcoming diversions," said the announcement. In theory this should enhance communication with drivers and reduce congestion in neighbouring towns, villages and roads etc. The result should be a smoother flow of traffic and better efficiency of works, although it's never going to completely remove disruption for everybody. Adrian Smith, Partnership Manager for CityFibre, said: "We're excited to be trialling this impressive technology to benefit road users around the Worthing area. Improved communications with drivers will help us to deliver these essential works quickly and safely whilst also ensuring that drivers and residents are impacted as little as possible. It's a win-win." The BUKO trial is connected to West Sussex Council's Lane Rental Scheme, which works by attempting to incentivise delivery partners to complete works with minimal disruption.

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