Best SD-WAN Solutions for UK Businesses with 2–30 Sites (UK-only or Global)
This article compares SD-WAN solutions relevant to UK businesses operating 2–30 sites. The focus includes both domestic UK networks and mixed UK–global deployments.
Traditional WANs built on MPLS and other carrier networks can be expensive and create single points of failure, especially now that applications are hosted across public cloud platforms.
Because of this, many UK businesses are replacing legacy networks with SD‑WAN; however, IT teams often struggle to choose between a do‑it‑yourself deployment and an outsourced managed service.
Managed SD‑WAN providers handle installation, monitoring and maintenance, often bundling value‑added features such as security enhancements and service‑level agreements.
Our 2025 comparison evaluates 10 SD‑WAN vendors and UK managed‑service providers, assessing them on routing performance, next‑generation security, orchestration and multi‑cloud connectivity. In the UK market, telecom operators such as BT and Vodafone partner with multiple vendors such as Fortinet, Versa, Meraki, and others to offer integrated SD‑WAN and SASE services that combine broadband failover, Wi‑Fi performance management and real‑time orchestration.
By highlighting these factors, this guide helps UK decision‑makers pick the right SD‑WAN partner for their network transformation.
IT leaders know the promise of SD-WAN: better control, resilience, and cost savings across a network that spans multiple offices. What’s less straightforward is deciding who to buy it from. The UK market is crowded, and global players jostle with home-grown providers — each with their own strengths and pitfalls. In this guide we cut through the sales talk, setting out which vendors genuinely meet the needs of UK businesses, whether you’re running a handful of sites nationwide or managing a broader international footprint.
- Fortinet
- Cisco
- Palo Alto Networks
- Versa Networks
- HPE (Aruba EdgeConnect)
- Huawei
- Juniper Networks
- Ericsson (Cradlepoint)
- Peplink
- Aryaka
- Cato Networks
- Adaptiv Networks
- Extreme Networks
- Forcepoint
- Nokia (Nuage Networks)
- Oracle
- Riverbed Technology
- SonicWall
- Sophos
- Turnium
- VMware VeloCloud
- WatchGuard Technologies
- Zyxel
- Checkpoint
- Cloudflare
- Netskope
- Zscaler
- AT&T
- BT
- Lumen (CenturyLink)
- Comcast Business
- Deutsche Telekom
- GTT Communications
- NTT Communications
- Orange Business Services
- Singtel
- Sprint
- Tata Communications
- Telefónica
- Telia
- Telstra
- Verizon
- Virgin Media Business
- Vodafone