United Kingdom Multimode Dark Fiber Market Size, Share, and COVID-19 Impact Analysis, By Fiber Type (Step-index Multimode Fiber and Graded-index Multimode Fiber), By Network Type (Metro Network and Long-haul Network), and United Kingdom Multimode Dark Fiber Market Insights, Industry Trend, Forecasts to 2035

United Kingdom Multimode Dark Fiber Market Insights Forecasts to 2035

• The United Kingdom Multimode Dark Fiber Market Size Was Estimated at USD 134.52 Million in 2024
• The Market Size is Expected to Grow at a CAGR of around 7.01% from 2025 to 2035
• The United Kingdom Multimode Dark Fiber Market Size is Expected to Reach USD 283.53 Million by 2035

According to a Research Report Published by Spherical Insights & Consulting, The United Kingdom Multimode Dark Fiber Market Size is anticipated to reach USD 283.53 Million by 2035, Growing at a CAGR of 7.01% from 2025 to 2035. The increasing investments in fiber optic networks, growing internet traffic, and expanding digital infrastructure.  The industry is developing rapidly further due to the need for improved connectivity and bandwidth efficiency.

Market Overview

The United Kingdom Multimode Dark Fiber Market Size refers to the industry involved with the supply and installation of multimode dark fiber optic cables, which are surplus optical fibers that can be purchased or leased. High-speed data transfer across short to medium distances within networks is made possible by these fibers.  The market consists of telecom firms, infrastructure suppliers, and businesses looking for scalable, affordable solutions to satisfy the UK's diverse industries' increasing demands for network performance, capacity, and connection. The increasing for data center connectivity, cloud computing, and high-speed internet. The demand for reliable fiber networks is fueled by the expanding use of 5G technologies and IoT devices. Additionally, opportunities for dark fiber deployment are presented by growing smart city projects and industry-wide digital transformation.  Leasing dark fiber to businesses looking for scalable, secure, and affordable network solutions is a profitable business strategy for service providers. The advanced fiber technologies that increase the capacity and speed of data transmission. Efficiency is increased by advancements in optical networking, such as automated network management and wavelength division multiplexing.  These developments promote expanding digital infrastructure and future-proof communication networks by enabling scalable, adaptable, and inexpensive connection options.

Report Coverage

This research report categorizes the market size for the United Kingdom multimode dark fiber market based on various segments and regions and forecasts revenue growth and analyzes trends in each submarket. The report analyses the key growth drivers, opportunities, and challenges influencing the United Kingdom multimode dark fiber market. Recent market developments and competitive strategies such as expansion, product launch, and development, partnership, merger, and acquisition have been included to draw the competitive landscape in the market. The report strategically identifies and profiles the key market players and analyses their core competencies in each sub-segment of the United Kingdom multimode dark fiber market.

Driving Factors

The increasing demand for dependable and fast internet access in a number of industries, including government, IT, and telecommunications.  Strong fiber optic infrastructure is necessary due to the explosive expansion in data traffic brought on by online gaming, cloud computing, and video streaming.  Furthermore, multimode dark fiber efficiently supports the increased network capacity and low latency required for 5G network expansion and smart city initiatives.  Multimode dark fiber is the go-to option for future-proof communication infrastructure due to rising investments in digital transformation and the demand for scalable, affordable network solutions.

Restraining Factors

The significant costs for multimode dark fiber infrastructure installation and upkeep.  Obstacles also include a shortage of qualified employees, regulatory issues, and competition from other technologies like wireless and single-mode fiber.  These issues hinder adoption, particularly in smaller businesses with tighter budgets.

Market Segmentation

The United Kingdom multimode dark fiber market share is classified into fiber type and network type.

• The graded-index multimode fiber segment accounted for the largest share in 2024 and is expected to grow at a significant CAGR during the forecast period.

The United Kingdom multimode dark fiber market is segmented by fiber type into step-index multimode fiber and graded-index multimode fiber. Among these, the graded-index multimode fiber segment accounted for the largest share in 2024 and is expected to grow at a significant CAGR during the forecast period. The segment growth can be attributed to increasing cloud service and 5G network adoption, growing demand for high-speed data transfer, growing digital infrastructure, and the requirement for scalable, low-latency connections across corporate, telecom, and data center applications.

• The metro network segment accounted for the largest revenue in 2024 and is expected to grow at a significant CAGR during the forecast period.

The United Kingdom multimode dark fiber market is segmented by network type into metro network and long-haul network. Among these, the metro network segment accounted for the largest revenue in 2024 and is expected to grow at a significant CAGR during the forecast period. This is because of increasing demand for data in cities, data center growth, growing use of cloud services and 5G, and the requirement for fast, low-latency connectivity in metro and business network environments.

Competitive Analysis:

The report offers the appropriate analysis of the key organizations/companies involved within the United Kingdom multimode dark fiber market along with a comparative evaluation primarily based on their product offering, business overviews, geographic presence, enterprise strategies, segment market share, and SWOT analysis. The report also provides an elaborative analysis focusing on the current news and developments of the companies, which includes product development, innovations, joint ventures, partnerships, mergers & acquisitions, strategic alliances, and others. This allows for the evaluation of the overall competition within the market.

List of Key Companies

• Colt Technology Services
• BT Group (British Telecom)
• Zayo Group
• Hyperoptic
• CityFibre
• Others

Recent Developments:

• In August 2023, Neos Networks launched national 400 Gbps Optical Wavelength services, expanding its offerings to encompass 26 data centers across the UK. This service aims to provide UK businesses with enhanced connectivity options to meet escalating data volumes and bandwidth requirements.

Key Target Audience

• Market Players
• Investors
• End-users
• Government Authorities 
• Consulting and Research Firm
• Venture capitalists
• Value-Added Resellers (VARs)

Market Segment

This study forecasts revenue at UK, regional, and country levels from 2020 to 2035. Spherical Insights has segmented the United Kingdom multimode dark fiber market based on the below-mentioned segments:

United Kingdom Multimode Dark Fiber Market, By Fiber Type

• Step-index Multimode Fiber
• Graded-index Multimode Fiber

United Kingdom Multimode Dark Fiber Market, By Network Type  

• Metro Network
• Long-haul Network