CSL Group | Secure IoT Connectivity Solutions

Our Critical Connectivity Capabilities

Life Critical

Protecting people’s safety in high-stakes situations where real-time data is crucial. Our solutions ensure uninterrupted communication for emergency response, telecare, and personal safety systems.

Mission Critical

Supporting the essential infrastructure that keeps a country running. From utilities to transport, our resilient networks ensure national systems remain operational under all conditions.

Business Critical

When a lack of connection poses serious commercial risk. We provide fail-safe IoT connectivity to maintain business continuity, protect assets, and ensure compliance.

IoT Connectivity Solutions

We deliver secure, resilient connectivity solutions designed for life-safety, security, and mission-critical applications across diverse sectors.

IoT SIM

Multi-network SIMs with unsteered roaming across 270+ networks globally. Built-in redundancy and seamless failover for maximum uptime.

rSIM

Patented resilient SIM technology with dual-core architecture and dual-path signalling for mission-critical reliability.

IoT Router

Industrial-grade routers with dual SIM, 5G/LTE, and failover capabilities. Ideal for remote monitoring and secure data transmission.

CSL Outpost

Edge computing gateway for secure, localised data processing and connectivity in remote or high-risk environments.

VoiceLink

Secure voice communication solution for alarm signalling and emergency response systems with PSTN replacement capabilities.

My Base App 2.0

Cloud-based control platform for real-time monitoring, diagnostics, and in-life service management of connected devices.

CSL Satellite

Global satellite connectivity for remote assets where terrestrial networks are unavailable. Ensures 100% coverage.

CSL Broadband

High-speed broadband solutions for fixed and mobile applications, supporting video surveillance, telemetry, and remote access.

Sectors We Serve

We deliver trusted solutions across diverse sectors, many in highly regulated environments.

Infrastructure

Reliable connectivity for critical national infrastructure with 24/7 support and proactive monitoring.

Industrial

Real-time connectivity for efficient, safe project management and compliance in industrial operations.

Healthcare & Telecare

Secure, always-on connectivity for patient monitoring, emergency response, and remote care systems.

Building & Security

Low-latency connectivity for surveillance, access control, and alarm signalling in commercial buildings.

Retail & Hospitality

IoT connectivity for POS systems, inventory tracking, and customer experience enhancement.

Transport & Logistics

Real-time tracking, fleet management, and cargo monitoring with resilient multi-network support.

Utilities

Secure IoT for smart metering, grid monitoring, and remote asset management in utility networks.

Commercial

Cyber-secure IoT solutions for commercial operations requiring high availability and data integrity.

Connectivity Management Platforms

Cloud-based control with full visibility, real-time monitoring, and in-life service management. Support for private APNs, VPNs, and compliance.

CSL IoT Platform

Centralised management for all connected devices. Real-time diagnostics, reporting, and configuration control.

Caburn Insight

Advanced analytics and insights platform for alarm signalling and security system performance monitoring.

CSL Live

24/7 network operations centre with proactive monitoring, incident response, and technical support.

IoT.Live

Real-time visibility into device status, signal strength, and network performance across your estate.

My Base App 2.0

User-friendly mobile and web interface for managing SIMs, viewing data usage, and troubleshooting.

ECHO

Environmental and condition monitoring platform for remote assets and critical infrastructure.

About CSL Group

With over 30 years of experience, CSL is a trusted leader in secure IoT connectivity solutions. We specialise in Life Critical, Mission Critical, and Business Critical applications, ensuring over three million devices remain connected 24/7.

Our UK-based NOCs provide round-the-clock support, and our technical teams deliver expert assistance for national-scale and complex deployments.

We are committed to innovation, resilience, and social impact — building a safer, more connected world.

Preparing for Network Changes

We help you transition smoothly through major network changes including:

BT Redcare Shutdown

Secure replacement solutions for alarm signalling systems.

PSTN Switch-Off

Future-proof connectivity with VoiceLink and IP-based signalling.

2G / 3G Switch Off

Migration to 4G/5G with resilient multi-network SIMs.

IoT Modernisation

Upgrade legacy systems with secure, cloud-managed IoT solutions.

Get in Touch

We look forward to hearing from you. For general enquiries, please contact CSL at:

+44 (0) 1895 474 474

General Enquiries: sales@csl-group.com

Technical Support: support@csl-group.com

ARC Support: servicedesk@csl-group.com

Orders: orders@csl-group.com

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