Business Leased Lines &Dedicated Internet Access UK
Uncompromised Gigabit Dedicated Internet Access for Mission-Critical Operations
For modern enterprise operations, shared broadband connections introduce latency spikes, contended bandwidth congestion, and unacceptable downtime risks. ManagedByUs is a premier business leased line provider in the UK, provisioning ultra-fast, symmetric Ethernet leased lines engineered to deliver guaranteed 1:1 contention, low latency, and dedicated internet access scaling from 100Mbps to 10Gbps.
- 99.999% uptime SLA
- 4-hour target resolution
- 100Mbps to 10Gbps
Enterprise Leased Lines Built for Maximum Resilience
Whether conducting a business leased line comparison for a single site or evaluating dedicated line vs leased line architectures across multiple offices, ManagedByUs provisions uncontended circuits across London and major UK metros. We supply direct business leased lines in London, high-capacity connectivity via our Manchester leased lines, Birmingham leased lines, and Leeds leased lines. We deliver true 1:1 dedicated fibre circuits that do not slow down during peak business hours, backed by strict financial SLAs. Unsure of your required capacity? Use our Bandwidth Calculator to size your circuit and edge hardware, or read our guide to SD-WAN vs leased lines to see how the two work together.
Key Advantages of Managed Connectivity
Uncontended 1:1 Bandwidth
Experience dedicated throughput with zero contention from neighbouring businesses, ensuring seamless cloud backups and video conferencing.
Symmetric Gigabit Speeds
Equal upload and download performance ranging from 100Mbps to 10Gbps on demand.
Resilient Failover Architecture
Pair primary fibre circuits with secondary wires or high-speed 5G backup, dynamically orchestrated through our managed SD-WAN services.
Edge Security Integration
Protect your circuit directly at the ingress point using integrated Firewall as a Service (FWaaS) and upstream DDoS mitigation.
24/7 Proactive NOC Monitoring & SLA Guarantees
Circuit outages cost money and halt productivity. Every leased line delivered by ManagedByUs is proactively monitored 24/7/365 by our Network Operations Centre (NOC). We detect link degradation before your staff notice, liaising directly with tier-1 carriers to ensure a 4-hour target resolution time and 99.999% network availability.
Frequently asked questions
Everything you need to know about leased lines and dedicated internet access for UK businesses.
Build on your dedicated connection
A leased line is the foundation. Layer these services on top to get the most from your dedicated connection.
From the blog
Dark Fibre DWDM vs. Managed 100G/400G Wavelengths for Enterprise DCI
An optical engineering comparison between self-lit dark fibre DWDM and managed 100G/400G optical wavelengths. Analyzes 400G ZR+ optics, optical loss budgets (dB), and RO2 resilience.
Read articleArchitectureEVPN-VXLAN vs. Traditional VPLS & QinQ for Multi-Campus Overlays
An architectural comparison between MP-BGP EVPN-VXLAN, VPLS, and 802.1ad QinQ for UK multi-site campus networks. Covers MTU overhead, ARP suppression, and active-active multi-homing.
Read articleConnectivityEPL vs EVPL vs Dark Fibre: UK Enterprise WAN & Optical Sizing Guide
A complete engineering comparison of EPL, EVPL, and Dark Fibre. Decode Layer-2 protocol transparency, QinQ encapsulation, latency overhead, and cost curves for UK enterprises.
Read articleConnectivityDedicated Internet Access (DIA) vs Business FTTP: The UK Enterprise Bandwidth Guide
A comprehensive technical comparison of 1:1 uncontended leased lines versus shared PON business broadband, covering contention ratios, symmetric upload, and 4-hour SLAs.
Read articleHardwareWhere Does MikroTik Actually Belong in an Enterprise Network?
An engineering evaluation of MikroTik in UK enterprise environments. Explore where CCR routers excel on edge BGP, where they fall short on TAC and NGFW, and how to deploy them.
Read articleConnectivityHow to Avoid Leased Line Excess Construction Charges (ECCs) and Wayleave Delays
A pragmatic engineering guide for UK businesses on mitigating unexpected leased line ECCs, leveraging PIA duct sharing, and fast-tracking commercial landlord wayleaves.
Read articleConnectivityDemystifying Leased Line Resilient Option 2 (RO2): What True Carrier Diversity Actually Requires
Why ordering two leased lines rarely guarantees 100% uptime. An engineering breakdown of physical duct separation, dual-exchange RO2 architecture, and BGP/SD-WAN automated failover.
Read articleUpgrade Your Business Internet Backbone
Contact ManagedByUs today to perform a quick postcode availability check and receive a customised leased line quote.