About Kays Consulting

Securing the systems that keep critical industry running.

We are an Australian Operational Technology cybersecurity practice built around one purpose — protecting the industrial and infrastructure environments modern society depends on. From energy and water to manufacturing and defence, we partner with operators to design, build and govern OT security programmes that hold up under scrutiny.

Sydney, AustraliaFounded by OT practitionersVendor-neutral
15+
Years securing OT environments
40+
Critical infrastructure engagements
100%
OT-cybersecurity focused
IEC 62443
NIST CSF · AESCSF aligned
Our story

Built by engineers who lived inside control rooms.

Kays Consulting Services was founded after years on the operator side — running incident response inside utilities, hardening SCADA networks for water and energy, and feeling first-hand the gap between IT-style cybersecurity and what actually keeps a plant safe.

That experience shapes every engagement we deliver. Our methodology is grounded in IEC 62443 and the NIST Cybersecurity Framework, but our advice is operational first — tuned to your process risk, your existing automation stack and the reality of running 24/7 facilities with no maintenance window.

Today we work with critical infrastructure operators across energy, water, manufacturing, healthcare, transport and defence — helping leadership teams see the real state of their OT environments and giving them a clear, fundable path to a stronger posture.

How we work

Four principles guide every engagement.

Engineer reviewing operational technology controls
01

Engineering-led security

We treat OT as engineering-first. Every control is designed to protect process safety, availability and integrity — not just satisfy a compliance checkbox.

OT cybersecurity compliance and standards
02

Standards-based by default

IEC 62443, NIST CSF, NIST SP 800-82 and AESCSF underpin our work, giving you a defensible, auditable posture from day one.

Independent OT cybersecurity advisory
03

Vendor-neutral advice

No reseller incentives. Our recommendations are driven by your operational risk, regulatory exposure and existing technology stack.

Measurable OT security outcomes
04

Outcomes you can measure

Asset visibility, segmentation maturity, RMP coverage, mean-time-to-detect — every engagement is tied to metrics your board recognises.

Our mission

Lead from the front in OT cybersecurity.

Deliver decisive, high-impact security engineering that protects the integrity of industrial systems and the critical infrastructure communities depend on.

Our vision

A world where critical infrastructure is secure by design.

To be a recognised global specialist in OT cybersecurity — trusted by operators, regulators and engineering teams to raise the bar on industrial resilience.

What we value

The commitments behind every deliverable.

01IntegrityWe tell you what your environment actually needs — not what is easiest to sell.
02RigourDocumented methodology, peer review and reproducible findings on every engagement.
03PartnershipWe work alongside your engineers, not over them — with knowledge transfer baked in.
04ResilienceDesigns that fail safely, recover quickly and keep production running.
See how we deliverTalk to our team
Ready when you are

Strengthen your OT security posture today.

Talk to our specialists about a tailored assessment, design or governance engagement — aligned to IEC 62443, NIST CSF and AESCSF.

Talk to an expertExplore services