Believe · Learn · Achieve
Siker is an OT cyber security consultancy and training provider with two deep specialisms: operational technology security for OT, ICS and SCADA environments, and cyber defence & response for the teams that detect, investigate and recover from attacks.
OT & Cyber Defence practice
Senior practitioners. Owned outcomes.
Accredited & Industry-Recognised
Our Specialisms
Our consultancy is set out the same way as our training: operational technology for the systems that run the physical world, and cyber defence & response for the teams that protect and investigate them.
Keeping physical operations safe, available and compliant
Security for the environments where a cyber event becomes a safety or availability event: ICS, SCADA, PLCs and the networks around them.
Detect earlier, investigate properly, recover faster
Defensive security across the enterprise and the operational estate - detection engineering, incident response readiness and digital forensics capability.
How We Work
Every engagement follows the same five stages, scaled to the size of the estate and the deadline in front of you.
01
Scope
We map the sites, plants, users, cloud services, control systems and remote access routes that matter, together with the regulatory drivers behind the work.
Clear scope prevents expensive surprises once assessment and remediation begin.
02
Assess
Enterprise and operational estates are reviewed against IEC 62443, ISO 27001, NIS Regulations and the NCSC CAF, using techniques that are safe for live environments.
You get a prioritised picture of risk written for engineers, security teams and the board.
03
Design
Zone and conduit models, segmentation, monitoring coverage and detection use cases are designed around how the plant and the business genuinely operate.
Requirements feed straight into procurement so assurance is bought in, not bolted on.
04
Implement
We work alongside your teams and integrators to put controls, visibility and response capability in place across IT and OT.
Evidence is documented as the work happens, so assurance packs build themselves.
05
Sustain
Assured training, mentoring, exercising and vCISO support hand ownership back to your own people.
The result is a security posture that survives audits, incidents and staff turnover.
Why It Matters
Most cyber programmes in critical operations start under pressure: an NIS audit, an insurance renewal, a customer questionnaire or an incident that came too close. We turn that pressure into a controlled route to assurance, then leave your teams able to run it themselves.
Trusted By
Organisations across energy, water, transport, manufacturing and the public sector rely on Siker for cyber capability and assurance.
Upcoming Courses
Open-enrolment dates currently on the books. Private and on-site deliveries can be arranged on request.
Educational Products
Training designed by practitioners across both pathways - operational technology (OT) and cyber defence & response - delivered through the Siker Academy.
Certified courses delivered to a nationally recognised standard for OT practitioners and defensive security teams.
Courses tailored to your systems, protocols and procedures - industrial or enterprise - hosted on the Siker Academy platform.
Simulations, knowledge checks and HMI-based exercises that keep learners engaged and assessed.
Incident scenarios drawn from real investigations and CNI environments, from phishing and ransomware to safety-system compromise.
Live sessions with practitioners who defend, investigate and recover both operational and enterprise systems.
Insights & News
Recent thinking from the Siker team on cyber security for critical operations.
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