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Internet Service Providers in the UK Industry Data and Analysis
Nearly every UK household and business is connected to the internet, with broadband considered necessary in our daily lives and business operations. This means that the only way UK ISPs can expand is by attracting customers from rival providers, creating a highly competitive environment. The largest change in the industry over the past few years has been the rapid deployment of fibre-to-the-premises (FTTP) infrastructure, which has brought gigabit-capable speeds to millions of homes. According to Ofcom, FTTP was available to approximately 78% of UK premises in July 2025. However, high competition and a lag for customer uptake have caused relatively modest revenue growth. Over the five years through 2025-26, industry revenue is forecast to grow at a compound annual rate of 2.6% to reach £9.8 billion, including a 3.3% growth in 2025-26.
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What's included in this industry analysis
IBISWorld's research coverage on the Internet Service Providers industry in the United Kingdom includes market sizing, forecasting, data and analysis from 2016-2031. The most recent publication was released January 2026.
About this industry
What's this industry report about?
The Internet Service Providers industry in the United Kingdom operates under the SIC industry code SP0.123. Companies in this industry provide internet access via fixed lines to businesses, households and the government. Internet services are provided via dial-up and fixed broadband connections. The industry also includes the provision of other corporate data services. Mobile-internet provision is not included in the industry. Related terms covered in the Internet Service Providers industry in the United Kingdom include ip vpn, quadruple-play, mbps, gbps, local loop unbundling (llu) and shared metallic path facility (smpf).
What's included in this industry?
Products and services covered in Internet Service Providers industry in the United Kingdom include ADSL, Cable and FTTC.
What companies are included in this industry?
Companies covered in the Internet Service Providers industry in the United Kingdom include BT Group plc, VMED O2 Ltd and Sky UK Ltd.
Performance
What's included in the Performance chapter?
The Performance chapter covers detailed analysis, datasets, detailed current performance, sources of volatility and an outlook with forecasts for the Internet Service Providers industry in the United Kingdom.
Questions answered in this chapter include what's driving current industry performance, what influences industry volatility, how do successful businesses overcome volatility, what's driving the industry outlook. This analysis is supported with data and statistics on industry revenues, costs, profits, businesses and employees.
Products & Markets
What's included in the Products and Markets chapter?
The Products and Markets chapter covers detailed products and service segmentation and analysis of major markets for the for the Internet Service Providers industry in the United Kingdom.
Questions answered in this chapter include how are the industry's products and services performing, what are innovations in industry products and services, what products or services do successful businesses offer and what's influencing demand from the industry's markets. This includes data and statistics on industry revenues by product and service segmentation and major markets.
Geographic Breakdown
What's included in the Geographic Breakdown chapter?
The Geographic Breakdown chapter covers detailed analysis and datasets on regional performance of the Internet Service Providers industry in the United Kingdom.
Questions answered in this chapter include where are industry businesses located and how do businesses use location to their advantage. This includes data and statistics on industry revenues by location.
Competitive Forces
What's included in the Competitive Forces chapter?
The Competitive Forces chapter covers the concentration, barriers to entry and supplier and buyer profiles in the Internet Service Providers industry in the United Kingdom. This includes data and statistics on industry market share concentration, barriers to entry, substitute products and buyer & supplier power.
Questions answered in this chapter include what impacts the industry's market share concentration, how do successful businesses handle concentration, what challenges do potential industry entrants face, how can potential entrants overcome barriers to entry, what are substitutes for industry services, how do successful businesses compete with substitutes and what power do buyers and suppliers have over the industry and how do successful businesses manage buyer & supplier power.
Companies
What's included in the Companies chapter?
The Companies chapter covers Key Takeaways, Market Share and Companies in the Internet Service Providers industry in the United Kingdom. This includes data and analysis on companies operating in the industry that hold a market share greater than 5%.
Questions answered in this chapter include what companies have a meaningful market share and how each company is performing.
External Environment
What's included in the External Environment chapter?
The External Environment chapter covers Key Takeaways, External Drivers, Regulation & Policy and Assistance in the Internet Service Providers industry in the United Kingdom. This includes data and statistics on factors impacting industry revenue such as economic indicators, regulation, policy and assistance programs.
Questions answered in this chapter include what demographic and macroeconomic factors impact the industry, what regulations impact the industry, what assistance is available to this industry.
Financial Benchmarks
What's included in the Financial Benchmarks chapter?
The Financial Benchmarks chapter covers Key Takeaways, Cost Structure, Financial Ratios, Valuation Multiples and Key Ratios in the Internet Service Providers industry in the United Kingdom. This includes financial data and statistics on industry performance including key cost inputs, profitability, key financial ratios and enterprise value multiples.
Questions answered in this chapter include what trends impact industry costs and how financial ratios have changed overtime.
Industry Data
What's included in the Industry Data chapter?
The Industry Data chapter includes 10 years of historical data with 5 years of forecast data covering statistics like revenue, industry value add, establishments, enterprises, employment and wages in the Internet Service Providers industry in the United Kingdom.
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Frequently Asked Questions
What is the market size of the Internet Service Providers industry in the United Kingdom in 2026?
The market size of the Internet Service Providers industry in the United Kingdom is £9.8bn in 2026.
How many businesses are there in the Internet Service Providers industry in the United Kingdom in 2026?
There are 219 businesses in the Internet Service Providers industry in the United Kingdom, which has grown at a CAGR of 0.6 % between 2021 and 2026.
How may import tariffs affect the Internet Service Providers industry in the United Kingdom?
The Internet Service Providers industry in the United Kingdom is unlikely to be materially impacted by import tariffs with imports accounting for a low share of industry revenue.
How may export tariffs affect the Internet Service Providers industry in the United Kingdom?
The Internet Service Providers industry in the United Kingdom is unlikely to be materially impacted by export tariffs with exports accounting for a low share of industry revenue.
Has the Internet Service Providers industry in the United Kingdom grown or declined over the past 5 years?
The market size of the Internet Service Providers industry in the United Kingdom has been growing at a CAGR of 2.6 % between 2021 and 2026.
What is the forecast growth of the Internet Service Providers industry in the United Kingdom over the next 5 years?
Over the next five years, the Internet Service Providers industry in the United Kingdom is expected to grow.
What are the biggest companies in the Internet Service Providers industry in the United Kingdom?
The biggest companies operating in the Internet Service Providers industry in the United Kingdom are BT Group plc, VMED O2 Ltd and Sky UK Ltd
What does the Internet Service Providers industry in the United Kingdom include?
Internet service provision and Internet Protocol virtual private network (IP VPN) services are part of the Internet Service Providers industry in the United Kingdom.
Which companies have the highest market share in the Internet Service Providers industry in the United Kingdom?
The company holding the most market share in the Internet Service Providers industry in the United Kingdom is BT Group plc.
How competitive is the Internet Service Providers industry in the United Kingdom?
The level of competition is high and decreasing in the Internet Service Providers industry in the United Kingdom.
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