Information Services Group (ISG) has released a comprehensive analysis on the significance of software-defined networking (SDN) in the transformation of U.K. enterprise networks. The 2025 ISG Provider Lens® Network - Software-Defined Solutions and Services report highlights the pivotal role of SDN in cloud migrations as companies prioritize network transformation amidst economic challenges, including slowing GDP growth and rising operational costs. The report evaluates 42 providers across key areas such as Managed SD-WAN Services and Secure Access Service Edge (SASE), identifying BT, Colt, Orange Business, Virgin Media O2 Business, and Vodafone as leaders across all categories. It also recognizes Accenture and Computacenter as leading in three areas each. The report notes a trend towards AI-influenced network development and explores the impact of quantum communications on enterprise networks. HCLTech stands out with the highest customer satisfaction in the ISG Star of Excellence™ program. Customized versions of the report are available from GTT and Computacenter.
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