Stakeholder
Compliance & Assurance
For teams who require clear, traceable evidence that cybersecurity requirements have been properly considered, implemented, reviewed, and closed out. Support includes audit-ready documentation, action tracking, evidence review, IEC 62443 alignment, CAF/NIS assurance support, and structured reporting for governance and project review activities.
What you are likely dealing with
OT cybersecurity work lands differently depending on the responsibility you hold. These are the practical pressures this role often has to balance.
- defensible evidence
- requirements traceability
- audit readiness
- IEC 62443 interpretation
- CAF alignment
- cybersecurity governance
- verification evidence
Evidence-focused support that helps assurance teams understand scope, assumptions, residual risks, verification records, and close-out actions.
How Meridian helps
- Clarify scope, assumptions, boundaries, and evidence expectations for assurance and review activity.
- Map project or site evidence against IEC 62443-aligned requirements, CAF-style considerations, or internal controls.
- Identify gaps in a way that supports accountable close-out rather than vague compliance statements.
- Produce concise evidence packs that help reviewers understand what has been checked, what remains open, and why.
- defensible evidence
- assurance support
- review close-out
- traceability
- cybersecurity governance
- verification evidence
Typical deliverables
Outputs are shaped around engineering evidence, review close-out, and decisions that can be used by operations, projects, assurance, or supplier teams.
- Assurance evidence matrix
- IEC 62443-aligned gap review
- Cybersecurity action and close-out tracker
- Verification evidence plan
- Review summary for audit or governance discussion
Related industries
These sectors commonly create the operating constraints, supplier dependencies, and assurance pressures relevant to this audience.

OT cybersecurity support for gas transmission, energy infrastructure, compressor control, telemetry, vendor access, safety interfaces and assurance requirements.

Cybersecurity and documentation support for remote pumping stations, telemetry, legacy PLCs, mixed vendor estates, and ageing SCADA platforms.

Assurance for vendor package systems, remote support links, strict change control, safety interfaces, and constrained maintenance windows.

Evidence-focused assurance for regulated engineering environments with strict change control, supplier review, and documentation requirements.
Related services
These service areas are usually the most relevant starting points for this stakeholder group.
Practical IEC 62443-aligned support for system scope, zones and conduits, SL-T discussions, matrices, workshops, and verification planning.
Independent review of supplier designs, FAT/SAT evidence, cybersecurity documentation, and project close-out evidence for control system delivery.
Meridian Consultants provides engineering-led OT cyber risk assessments for industrial control systems, supporting project teams, asset owners and suppliers who need to understand cybersecurity risk in the context of safety, operations, availability and real engineering constraints. Assessments can be aligned with IEC 62443, the Cyber Assessment Framework and other applicable requirements depending on the site, sector, project stage and assurance need.
Network drawings, IP schedules, firewall schedules, interface registers, cybersecurity procedures, and FAT/SAT documentation that support assurance and maintainability.
Plan a practical assurance approach
Book a technical discovery call to discuss the responsibility, project stage, evidence gap or operating constraint without sharing sensitive site details.