Thornfield Systems delivers SCADA, DCS, and PLC solutions for critical national infrastructure across the UK. From design through to commissioning and long-term managed support.
Discuss Your ProjectComplete SCADA system design, hardware specification, software development, and factory acceptance testing. We work with Siemens, Schneider Electric, ABB, and Rockwell platforms.
ICS security assessments, network segmentation, vulnerability management, and incident response aligned to IEC 62443 and NCSC Cyber Assessment Framework guidelines.
24/7 remote monitoring, preventive maintenance, emergency callout, and lifecycle management for operational SCADA and DCS installations across the UK.
PLC and RTU programming for Siemens S7, Schneider Modicon, and Allen-Bradley platforms. On-site commissioning, loop testing, and I/O validation.
Legacy SCADA modernisation, Windows XP/7 to supported OS migrations, HMI refresh, and phased system upgrades with minimal operational disruption.
Outstation telemetry design, cellular and radio communications, remote monitoring solutions for distributed assets across water, gas, and power networks.
Treatment works, pumping stations, and distribution networks
Generation, transmission, distribution, and renewable assets
Processing facilities, pipeline SCADA, and terminal automation
Rail signalling systems, tunnel ventilation, and road infrastructure
Founded in 2009, Thornfield Systems has grown from a specialist PLC programming consultancy into one of the UK's trusted SCADA and industrial control system integrators.
Our team of control systems engineers, OT security specialists, and project managers deliver solutions across water, energy, and transport infrastructure. We hold ISO 27001 certification and are CREST accredited for OT security assessments.
Based in Manchester with project offices in London and Edinburgh, we support clients nationwide with both project delivery and ongoing managed services.
Thornfield Systems Ltd
Unit 14, Riverside Business Park
Irwell Street, Manchester M3 5EN
3rd Floor, 12 Moorgate
London EC2R 6DA
+44 (0)161 839 2847
enquiries@thornfieldsystems.com
Monday – Friday: 08:00 – 17:30
24/7 support available for managed service clients