• Managed SD-WAN Services – a strategic enabler for transformation
  As U.K. organisations embrace large-scale SD-WAN solutions for quick branch provisioning with dispersed edge sites, SD-WAN becomes integral to their cloud migration and security strategies. GTT is recognised for our mature network infrastructure, strong emphasis on security, tailored service delivery, customer-centric approach and simplified network management through our GTT Envision platform.
• Secure Access Service Edge (SASE) – the architecture for secure hybrid work
  This ISG report covers how U.K. enterprises seek integrated networking and security solutions, spanning from the core to cloud to the edge. GTT meets market demand by offering cloud-based, single- and multivendor options to secure endpoints across offices, hybrid clouds and remote workforces.
• SD-Network Transformation Services – achieving agility and scale
  To enable AI, IoT, seamless user experiences and robust cybersecurity, ISG highlights that enterprises need to rearchitect their networks for agility, security and scalability. GTT is named a ‘Rising Star’ for our SDN consulting and implementation services in the UK. Our expertise, customer-centric approach and focus on enabling cloud adoption is highlighted. Our pod-based support structure and commitment to understanding customer outcomes are key strengths.
• Edge Technologies and Services – performance and flexibility matter
  In the U.K., edge computing has been expanding rapidly and consistently. The firm assesses provider readiness in private 5G, IoT integrations, and data processing closer to the source, which are key for operations that can’t afford latency or centralised bottlenecks.

Whether you’re reviewing your current vendor or building a shortlist, this report helps you make informed comparisons. ISG’s quadrant layout and provider profiles provide clear benchmarks, and its analysis supports sourcing discussions, budget planning and board-level decisions.

It’s also practical for architects who are mapping how SD-WAN, security and edge services intersect and what those choices mean for internal teams. With clear strengths and cautions outlined for each provider, the ISG report is a reliable reference for both strategic and technical decision-makers.

• SD-WAN Advantage: The U.S. is the largest consumer of SD-WAN, making it a key region to watch for new and evolving SD-WAN capabilities, solutions and services. SD-WAN adoption continues to grow as enterprises seek to simplify network management, enhance application performance and ensure secure, scalable connectivity across multiple locations and cloud platforms.
• Security Shift: The evolution of integrated secure enterprise networks has transitioned from fragmented solutions to fully integrated frameworks under SASE. It’s now one of the fastest-growing segments in enterprise networking, driven by organizations embedding security practices into every stage of innovation and long-term strategy.
• Evolving Buyer Behavior: As the complexity of SD-networking increases, forward-thinking enterprises are prioritizing advisory-driven engagements to ensure smarter planning and seamless execution.
• GTT’s Position: GTT is named a Leader in both Managed SD-WAN and SASE, and a Rising Star in SD-Networks Transformation Services. This reflects the strength of the Envision platform and ability to deliver tailored Secure Connect managed SD-WAN and SASE solutions, our Tier 1 backbone with global reach and a seamless advisory-to-implementation experience.

If you’re evaluating vendors, revisiting your network strategy or planning for transformation, this report gives you the clarity to compare providers on independent, data-backed criteria.