KeySIM’s NatWest Facility Puts IoT Resilience at the Centre of Growth
By Charlie Bennett · Business & Industry Correspondent
KeySIM, the Stockport-based provider of IoT SIM cards and managed connectivity, says it has secured a new finance facility from NatWest to support expansion and investment in its network infrastructure.
The amount and terms of the facility were not disclosed. For customers, however, the more consequential part of the announcement is where the company says the money will go: building resilience into the connections used by remote equipment, sensors and operational devices.
That is a meaningful commercial proposition. When a connected device supports retail payments, building management, security monitoring or a healthcare service, the SIM is not simply a commodity purchase. The buying decision is about whether an organisation can continue operating, diagnose a fault remotely and control access to equipment without unnecessarily exposing systems to the public internet.
KeySIM is operated by Key IoT Limited, an active UK telecommunications company incorporated in 2019, according to Companies House. The company says its services allow connected devices to use more than one UK mobile network and include private networking and managed connectivity options.
Connectivity becomes an operational dependency
The UK’s IoT market is substantial, but it is not a uniform one. Ofcom’s Connected Nations 2025 report puts the number of active IoT connections on mobile-network-operator networks at around 27.7 million in 2025, up 4% year on year. Those connections support applications including asset tracking, smart metering, building management, transport and security.
For a supplier such as KeySIM, that context matters because the value of connectivity rises with the cost of interruption. A card used in an isolated sensor may have modest consequences if it drops offline. A connection supporting a remote heating controller, CCTV estate, digital till or clinical service has a more direct effect on staff time, customer service and operational risk.
KeySIM says customers use its multi-network SIMs across healthcare, retail, facilities management and security. Its own published customer material names organisations including FatFace, Punch Pubs & Co and Essex Partnership University NHS Foundation Trust. These are company-reported examples rather than independent performance evaluations, but they illustrate the mix of estates where a single-network dependency can become a practical business problem.
The company also says it transmitted more than 10 million megabytes of data through its platform during June 2026. It reported revenue of £370,000 for the year ended July 2025, expects to exceed £500,000 in 2026 and forecasts annual recurring revenue above £1 million in 2027. Those current and forward-looking figures have been supplied by KeySIM and should be read as company claims, rather than independently audited forecasts.
Resilience requires more than another route to a signal
Multi-network access can help a device move away from a network experiencing weak coverage or disruption. Yet it is only one layer of resilience. The customer outcome depends on the device, router, installation, power supply, monitoring, support model and security architecture surrounding the connection.
That distinction is especially important where remote access reaches operational technology: the systems that monitor or control physical equipment. The National Cyber Security Centre advises organisations to limit exposure of such environments, avoid unnecessary inbound access and use securely controlled, brokered connections for external support where appropriate.
In that setting, “fixed IP” should not be treated as shorthand for security. A public static address can simplify access, but it also demands clear asset records, strong authentication, timely patching and tight control of exposed ports. Suppliers that combine connectivity with private networking and management tools are therefore addressing a real buyer need — but customers should still test the architecture against their own risk profile.
The commercial lesson is straightforward: resilience needs to be evidenced in the way a provider describes incidents, failover, support response, device compatibility and security responsibilities. A promise of broad coverage is useful; a clear account of what happens when conditions deteriorate is more useful still.
Funding is a test of delivery as well as ambition
NatWest’s continued support gives KeySIM capacity to invest, according to the announcement. Founder and managing director Graham Robinson previously took part in the bank’s Accelerator programme during 2021 and 2022, and the company characterises that relationship as important to its development.
For the business, the next test is whether investment translates into outcomes that procurement and technical teams can assess: fewer avoidable site visits, more predictable remote access, clearer service communication and better continuity for connected estates.
The market does not need every IoT deployment to use the same connectivity design. Some applications will prioritise low power consumption, others bandwidth, cost, geographic coverage or private local networks. But as more everyday services rely on remote devices, buyers will increasingly judge connectivity partners on their ability to explain trade-offs rather than simply claim ubiquity.
For KeySIM, the funding announcement is therefore more than a scale-up milestone. It is an opportunity to make resilience tangible for customers whose own services depend on connections remaining available and appropriately secured.
This article is based on information distributed through Pressat. It has been edited by Expert View Media for clarity, context and length.
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