CSL DualCom

What CSL DualCom does

CSL Group (branded historically as CSL DualCom) is a UK-based, privately held IoT connectivity provider founded in the mid-1990s and headquartered in London, employing 51-100 people. The company sells resilient cellular connectivity — including dual-signalling alarm services, multi-network IoT SIMs, the rSIM resilient SIM with automatic network failover, IoT routers, CSL Outpost, VoiceLink, CSL Satellite, CSL Broadband, and a Signal Analyser — through its proprietary DualCore architecture built on private IP, private APNs, and multi-network roaming SIMs. It complements this hardware portfolio with a suite of connectivity management platforms (CSL Live, IoT.Live, CSL IoT Platform, CSL SIM Insight, My Base App 2.0) that allow enterprise customers to monitor and orchestrate large fleets of connected devices.

The company's go-to-market combines a structured channel-partner programme — anchored by security installers and reseller relationships with Johnson Controls, ADT, Chubb, G4S, SECOM, and Axis Communications — with direct enterprise sales into critical national infrastructure, public sector, healthcare and telecare, industrial, and utilities customers. Its revenue is generated through three streams: recurring IoT SIM and connectivity subscriptions, hardware sales (routers, signal analysers, and devices) typically bundled into managed-service contracts, and 24/7 managed connectivity services with proactive monitoring and remote intervention. It is certified to ISO27001, ISO14001, ISO9001, and Cyber Essentials Plus, and is actively aligned with GSMA, TechUK, and FIA.

CSL's geographic footprint has expanded beyond the UK into the United States, Netherlands, Sweden, Germany, and Spain. The company is positioning around three regulatory tailwinds — the BT Redcare shutdown, the PSTN switch-off, and the 2G/3G phase-out — which are forcing legacy alarm signalling customers to migrate to cellular and IP-based connectivity. In 2020 it received a growth-stage investment from ECI Partners, and in 2026 it appointed a new CMO, a regional Sales Director for Europe, LATAM & Asia, and a new HR Director to support continued scale-up. Ed Heale serves as CEO and Simon Banks as Founder & Director.

Name

CSL DualCom

Legal name

CSL Group

Website

https://csldual.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

51–100 employees

Short description

CSL DualCom (CSL Group) is a UK-based IoT connectivity provider that delivers resilient cellular, satellite, and managed connectivity solutions to fire & security installers, telecare providers, critical infrastructure operators, and enterprise customers across Europe and the US.

Ownership category

akta.pro rank

Product category

Critical IoT Connectivity Services

NAICS

Telecommunications Resellers and Agents for Wireless Telecommunication Services (51712), Wired and Wireless Telecommunications (except Satellite) (5171), All Other Telecommunications (5178)

SIC

Telephone Communications (No Radiotelephone) (4813), Communications Services, Nec (4899)

akta.pro primary industry

IoT Connectivity Management (Private APN, SIM/eSIM, Device Connectivity) (HDAIAGAG)

Keywords

• Alarm signalling
• IoT connectivity
• Dual signalling
• Critical connectivity
• Security communications

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. IoT SIM Cards and Connectivity: Recurring connectivity services through IoT SIM cards with multi-network roaming capabilities. Revenue generated from subscription-based connectivity management and data services.
2. IoT Hardware (Routers, Devices): Sale of IoT routers, signal analysers, and other connectivity hardware. Hardware is sold as part of managed service solutions.
3. Managed Connectivity Services: Managed services including 24/7 monitoring, support, and remote intervention. Delivered as a managed service with continuous monitoring and assurance.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

CSL DualCom, operating as CSL Group, provides dual-path alarm signalling solutions and critical IoT connectivity services for regulated environments. The company sells IoT SIM cards, rSIM resilient SIMs, IoT routers, satellite and broadband connectivity, alarm signalling systems, and connectivity management platforms, backed by DualCore architecture and 24/7 managed services.

Product overview

CSL Group operates as a connectivity and resilience partner specializing in critical IoT solutions. The portfolio is organized around four criticality tiers (Life Critical, Mission Critical, Business Critical, and Geo-Critical) and comprises hardware products including IoT SIM cards, rSIM (resilient SIM), IoT Routers, CSL Outpost, VoiceLink, CSL Satellite, CSL Broadband, CSL Signal Analyser 2, and Alarm Signalling solutions. These are complemented by a suite of proprietary connectivity management platforms including My Base App 2.0, CSL Live, IoT.Live, CSL IoT Platform, and CSL SIM Insight. The company delivers managed services with private, secure infrastructure featuring DualCore architecture, private IP, and private APNs for regulated environments.

Differentiator

Problem solved

Functional benefit

Brands

• DualCore: Dual-core architecture for resilient connectivity with no single point of failure
• CSL Outpost
• VoiceLink
• rSIM
• CSL IoT Platform
• CSL Live
• My Base App 2.0
• IoT.Live
• CSL SIM Insight

Products and services

• IoT SIM

Quantifiable outcome

• Millions of global connections supported across distributed estates
• +1 more outcomes

Named customers10 records

Segments8 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

15 partnerships are on record, tiered core and major.

• Vodafone IoTcoreTechnology or IntegrationVodafone IoT is a key network partner providing mobile network connectivity for CSL's multi-network SIM services. CSL holds Vodafone Indirect Partner status and was awarded Channel Deal of the Year in 2024.
• KPN IoTcoreTechnology or IntegrationKPN IoT provides Dutch mobile network connectivity as part of CSL's multi-network roaming SIM services for European coverage.
• Tele2 IoTcoreTechnology or IntegrationTele2 IoT provides mobile network connectivity as part of CSL's multi-network SIM offering for European and international coverage.
• EEcoreTechnology or IntegrationEE provides UK mobile network connectivity as part of CSL's multi-network SIM services for domestic coverage.
• O2coreTechnology or IntegrationO2 provides UK mobile network connectivity as part of CSL's multi-network SIM services.
• OrangecoreTechnology or IntegrationOrange provides international mobile network connectivity as part of CSL's multi-network roaming services.
• Telefonica TechcoreTechnology or IntegrationTelefonica Tech provides IoT connectivity services as part of CSL's partner ecosystem for global coverage.
• GSMAcoreOthersActive members of GSMA, the global industry association representing mobile operators, providing industry leadership and standards alignment.
• TechUKcoreOthersActive member of TechUK, the UK technology industry association, aligned with UK technology standards and policies.
• Johnson ControlsmajorChannel Partner/ Reseller/ DistributorGlobal leader in building products and solutions. Johnson Controls is a customer logo partner for CSL's building and security connectivity solutions.
• Axis CommunicationsmajorChannel Partner/ Reseller/ DistributorLeading network video and access control solutions provider. Axis is a customer logo partner for security and surveillance connectivity.
• SECOMmajorChannel Partner/ Reseller/ DistributorJapanese security services company operating globally. SECOM is a customer logo partner for alarm signalling solutions.
• G4SmajorChannel Partner/ Reseller/ DistributorGlobal security services company. G4S is a customer logo partner for fire and security connectivity solutions.
• ThalescoreTechnology or IntegrationGlobal technology company providing advanced technologies. Thales is a technology partner logo for CSL's critical connectivity solutions.
• Balfour BeattymajorChannel Partner/ Reseller/ DistributorMajor UK infrastructure group. Balfour Beatty is a customer logo partner for critical infrastructure connectivity solutions.

Scale indicators2 records

Recent moves4 records

Expansion highlights6 records

Direct peers

• Wireless Logic: UK-headquartered IoT connectivity aggregator offering multi-network SIMs and managed connectivity across Europe. Directly comparable to CSL on multi-network SIM, managed services, and security/telecare verticals, and a frequent direct competitor on UK fire & security migration deals.
• AddSecure: Sweden-based provider of critical IoT connectivity with a strong alarm signalling and security installer heritage across the Nordics. Closely analogous to CSL DualCom in the legacy alarm-signalling business and the transition into IP/cellular.
• Eseye: UK-based global IoT connectivity provider with multi-IMSI/steering SIM technology and managed connectivity services. Highly comparable to CSL's rSIM and multi-network proposition, particularly for enterprise and regulated-environment use cases.
• 1NCE: Germany-headquartered IoT connectivity specialist offering global cellular IoT connectivity with a flat-rate subscription model. A direct competitor for high-volume, low-ARPU IoT SIM deals and an emerging threat in industrial/utility verticals.
• Cubic Telecom: Ireland-based global IoT and connected-vehicle connectivity provider with multi-network managed services. Comparable on enterprise managed connectivity and international footprint, with stronger automotive focus.
• Emnify: Germany-based cloud-native IoT connectivity platform offering global multi-network SIM and APIs. Competes with CSL's IoT platform proposition for enterprise and developer-led IoT deployments.
• Soracom: Japan-headquartered global IoT connectivity platform with multi-network SIMs and developer APIs. Comparable cloud-style IoT connectivity alternative, particularly relevant given CSL's expansion into Asia.
• Aeris Communications: US-based IoT connectivity and platform provider serving automotive, fleet, and industrial verticals. Comparable managed connectivity services with a more US-centric footprint and stronger enterprise software stack.
• KORE Wireless: US-based global IoT connectivity provider offering multi-network SIMs and managed services. Comparable to CSL on managed IoT connectivity for enterprise and industrial customers, with scale advantages.
• JT IoT: Jersey Telecom's IoT division, providing global multi-network managed IoT connectivity with focus on regulated and enterprise customers. Directly comparable in private APN / managed connectivity proposition, especially across European markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/CSLDualCom
• Facebookfacebook.com/CSLDualCom
• LinkedInlinkedin.com/company/csl-dualcom-ltd

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds3 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CSL DualCom