Our IoT SIM cards access all major UK networks, ensuring reliable multi-network connectivity wherever your devices are deployed.
Flexible PAYG IoT SIM solutions without long-term commitments. Scale your IoT connectivity up or down as your business needs change.
Easy-to-use control panel for monitoring IoT SIM usage, managing devices, and controlling costs in real-time.
Enterprise-grade security with Private Fixed IP addresses and VPN capabilities for safe remote IoT device management and data transmission.
Dedicated account management and technical support designed specifically for business IoT connectivity and enterprise needs.
From single device pilots to large-scale IoT deployments, our multi-network SIM solutions grow with your business requirements.
"Fantastic customer service and extremely knowledgeable about IoT connectivity. Great product at a great price point.
"Excellent service, very easy to deal with."
"My charity has used KeySim for over a year now and they have ensured we have had continuous service where other providers connot get a signal"
Mobile News | March 2024
Telecom specialist KeySIM has entered into a partnership with connectivity provider Wired Broadcast to supply remote-provisioned multi-network SIMs. These SIMs support major UK mobile operators and hundreds of global networks, and can be managed via a portal — removing the need for hardware reconfiguration on-site. The offering is particularly aimed at sectors operating in remote locations such as construction, agriculture, security and healthcare institutions.
Read MoreAltrincham Today | July 2025
After losing his job of 22 years, remortgaging his house and ending up on Universal Credit during lockdown, Altrincham-based entrepreneur Graham Robinson founded Key Sim in 2019 to meet a gap in the market for SIM cards that connect to all four major UK mobile networks. Despite two years of near-zero income caused by lockdown, he pushed relentlessly on social media and LinkedIn — and today the business has sold over £1 million worth of specialist multi-network SIMs and serves more than 500 business clients.
Read MoreBusiness Mole | December 2023
KeySIM, a UK-based provider of multi-network IoT SIM cards, has surpassed 10,000 active IoT connections, serving over 500 customers. This milestone reflects a growing trend among businesses to move away from traditional single-network, contract-based models. KeySIM's remotely steerable SIM technology allows users to toggle mobile networks remotely, ensuring uptime and optimizing performance. Additionally, the company offers secure, managed access to devices over private IP addresses, reducing the attack surface for IoT estates. Trusted by organizations such as FATFACE and the North Wales Mountain Rescue Team, KeySIM supports applications including retail connectivity and mission-critical emergency communications.
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