Safety · Security · Systems

Engineering confidence into complex industrial systems.

Sigmology combines functional safety, industrial cybersecurity and model-based systems engineering to help organisations understand risk, make sound decisions and deliver dependable systems.

Our expertise

One view of risk—from analysis to verification

Safety, cybersecurity and systems engineering are deeply connected. We bring them together through practical methods, strong standards knowledge and models that make complexity understandable.

Capabilities

How we help

  • Hazard and operability analysis (HAZOP)
  • Failure modes and effects analysis (FMEA)
  • SIL assignment and verification
  • Layers of protection analysis (LOPA)
  • Industrial cybersecurity risk assessment
  • Secure product development
  • SysML consulting and training
  • Custom modelling profiles and plugins

Standards expertise

Experienced support across IEC 61511, IEC 62443 and the methods that put them into practice.

Connected disciplines

A coherent view of safety, cybersecurity and system architecture—without artificial boundaries.

Practical delivery

Focused work, clear evidence and recommendations your engineering teams can use.

Team

A focused team for demanding work

Sigmology is led by two specialists whose expertise spans safety, reliability, cybersecurity and model-based systems engineering.

Nadja Brush

Safety and Reliability Specialist

Nadja Brush

Co-founder

John Brush

Cybersecurity and MBSE Specialist

John Brush

Co-founder

Contact

Have a complex system or risk question?

Tell us what you are working on. We will quickly establish whether our expertise fits your needs.

Talk to us