Key Takeaways

  • NatWest’s backing will support managed cellular connectivity for machines, equipment, and remote assets.
  • Enterprise demand is shifting toward large device fleets that require remote provisioning, centralized control, and coverage across multiple networks.
  • eSIM and iSIM standards could reduce the operational burden of deploying and maintaining connected products over long lifecycles.

NatWest’s backing of KeySIM puts fresh capital behind a part of the Internet of Things market that rarely attracts much attention outside telecom circles: keeping thousands of distributed devices connected, manageable, and commercially viable.

KeySIM supplies IoT SIM cards and managed connectivity services for machines, equipment, and remote assets. The funding will support growth in a market increasingly shaped by eSIM, iSIM, low-power cellular networks, and enterprise demand for centralized fleet management. The backing comes alongside NatWest’s $1 billion notes offering, reflecting broader financing activity around digital infrastructure and scalable connectivity.

Cellular IoT reached approximately 4.7 billion connections in 2025, an increase of 13.3% year over year, while operators generated about $20.8 billion in cellular-IoT revenue, according to IoT Analytics figures cited in 2026 market research. Those numbers point to a sizable market, but connection volume is only part of the story.

A connected meter, payment terminal, industrial sensor, vehicle tracker, or environmental monitor may remain in service for years. During that time, network coverage can change, roaming arrangements can shift, and local regulations may affect how connectivity is delivered. Replacing physical SIM cards across a large, geographically dispersed fleet is expensive and sometimes impractical.

A managed connectivity model addresses this challenge by allowing administrators to update subscriptions and device access remotely. Rather than treating connectivity as a one-time hardware decision, enterprises can adapt their networks over time. This approach serves equipment manufacturers and service operators that deploy the same product across several countries but do not want to negotiate and administer separate carrier relationships in every market.

Demand is increasingly commercial rather than experimental. GSMA Intelligence forecasts that enterprise applications will account for 65% of all IoT connections by 2030. Meanwhile, Omdia reported that nearly 60% of surveyed enterprises planned to invest more than $1 million in IoT during 2025, while 46% expected to deploy more than 10,000 devices within 12 months.

Deploying 10,000 devices shifts the operational requirements for connectivity management. Provisioning, billing, diagnostics, security policies, usage controls, and network performance become fleet-level concerns, where a minor manual process can turn into a costly bottleneck.

Technology choices are also widening. Omdia found that 73% of surveyed IoT enterprises used 5G, while 39% used cellular low-power wide-area networking. NB-IoT led among the cellular LPWAN technologies used by those respondents. LTE-M and NB-IoT support devices that prioritize battery life, broad coverage, and relatively modest data requirements, while 5G suits more demanding applications.

Remote SIM provisioning adds another layer. GSMA specifications SGP.31 and SGP.32 are designed for IoT deployments, allowing connectivity profiles to be managed without physically accessing each device. Omdia’s eSIM and iSIM analysis identifies adoption of these specifications as a major market development extending across industry verticals through 2035.

Remote profile management provides flexibility over a product’s operating life. Manufacturers can activate devices closer to deployment, change profiles remotely, or adapt connectivity arrangements as products enter new markets. Integrated SIM technology also reduces space requirements in certain device designs, although implementation choices vary by use case.

KORE Wireless and Eseye illustrate a broader market moving beyond basic SIM resale toward managed global connectivity, orchestration, and lifecycle services. Differentiation depends on coverage relationships, management controls, commercial transparency, technical support, and the ability to handle regional requirements.

IDC research outlines operators facing choices around intelligence, digital sovereignty, and sustainable growth. Managed IoT connectivity aligns with this transition, as enterprises expect visibility, policy control, resilience, and actionable operational data alongside standard connections.

NatWest’s funding gives the connectivity provider additional capital to pursue this enterprise demand. The commercial test, however, relies on execution: helping customers scale connected fleets without allowing connectivity administration to become a sprawling IT burden.