Smart Building Connectivity — Cellular IoT SIMs | SIMSY
Smart Buildings

Smart Buildings Connectivity

Managed connectivity for building infrastructure

Building systems on corporate networks create risk

Modern buildings run HVAC, access control, lighting, cameras, sensors, and energy management systems, all increasingly IP-connected. Building automation falls under IEC 62443, and operators may fall under NIS2. When these systems share a network with corporate IT, every building device becomes a potential lateral movement path.

  • HVAC, access control, lighting, cameras, and energy management all need connectivity
  • Building automation systems fall under IEC 62443 security requirements
  • Building operators may be subject to NIS2 obligations
  • Building systems sharing corporate IT networks create lateral movement risk
  • Managing connectivity across a multi-building estate requires centralised visibility

Isolated, managed connectivity for building infrastructure

SIMSY separates building management systems from corporate IT at the network level, with centralised management, remote troubleshooting, and automated compliance evidence across your entire building estate.

  • CPL isolates building management systems from corporate IT networks
  • LAN device discovery for identifying and monitoring every building device
  • Centralised management across your entire building estate from a single dashboard
  • Remote troubleshooting without dispatching engineers to individual buildings
  • Network-native monitoring of building sensors, controllers, and subsystems
  • Automated audit trail generation for CRA, NIS2, and IEC 62443 compliance

What the platform delivers

Network Segmentation

CPL isolates building management systems from corporate IT at the cellular network level. HVAC, access control, and energy management operate on their own isolated network, no lateral movement risk.

LAN Device Discovery

Automatically discover and inventory every device on your building management network. Know exactly what is connected, identify unknown devices, and maintain an accurate asset register.

Centralised Management

Manage connectivity across your entire building estate from a single dashboard. Per-building, per-system, and per-device visibility with unified alerting and reporting.

Remote Troubleshooting

Diagnose and resolve building system connectivity issues remotely without dispatching engineers. Access building controllers, check sensor status, and restart devices from your desk.

Network-Native Monitoring

Monitor building sensors, controllers, and subsystems via network-level telemetry without installing agents. Track device health, connectivity, and performance across the estate.

Compliance Evidence

Automated audit trail generation covering CRA device security, NIS2 network security, and IEC 62443 zone documentation. Compliance evidence generated without manual effort.

Ready to talk?

We are the founders. Drop us a direct email and we will arrange a call. No booking forms, no automated sequences. A straight conversation about your building estate and how SIMSY can help.