Our Leadership Team

KeySIM is led by a small and experienced team of engineers, developers and support professionals based in the UK.

We believe in keeping operations lean, communication personal and technology reliable.

Between us we have designed, deployed, and supported hundreds of thousands of IoT connections across every major UK network.

From the first idea to nationwide rollout, our team manages everything in-house — technical design, network integration, logistics, and customer support to ensure every KeySIM performs exactly as promised.

We're not a call centre or a corporate reseller.

We're the people who build and manage the network you rely on — and we take that responsibility seriously.

GR

Graham Robinson ACMA

Co-Founder & Managing Director

Graham is a CIMA-qualified accountant who now spends most of his time designing technical solutions — though he admits the jury is still out on that one!

Before starting KeySIM, he helped create an IoT safety service that protected thousands of vulnerable lone workers. The system used handheld GPS devices with SOS buttons, allowing users to summon help instantly if they were in danger.

Graham played a key role in the development of a smart ID badge holder that was later manufactured at scale by Teltonika Networks and deployed worldwide. You can read more about the device, the GH5200 – Teltonika Telematics.

Those early projects relied on IoT SIM cards to transmit emergency alerts — and seeing the limitations of major SIM providers firsthand inspired Graham to build a better alternative. You can read more about his Lone Worker project in this Vodafone case study.

Chartered Institute of Management Accountants logo
JA

James Adam BEng (Hons)

Co-founder & CTO

James is a software developer and systems architect with decades of experience designing and delivering mission-critical infrastructure from the ground up.

He specialises in high-volume data processing, systems integration, and end-to-end design — covering everything from device hardware and embedded firmware to network communications, server infrastructure, and management platforms.

Before co-founding KeySIM, James built the complete technical framework for the IoT Lone Worker safety service designed by Graham, including all supporting infrastructure and bespoke software.

Earlier in his career, he developed alarm-monitoring software used by major UK alarm receiving centres to manage over half of the country's monitored alarm systems.

More recently James has contributed to the hardware design and firmware for devices that protect vulnerable people and property, as well as the processing and management systems that support them.

Many of these systems rely on IoT SIM cards as their communication backbone which led directly to the creation of KeySIM and its focus on secure, resilient, multi-network connectivity.