
Stakeholder
Engineering & Design Teams
For project engineers who need cybersecurity requirements translated into architecture decisions, supplier actions and FAT/SAT evidence.
Decisions and constraints for this role
Questions likely to need resolution
- design reviews
- FAT/SAT evidence
- technical deliverables
- review comments
- architecture clarity
- technical assumptions
- integration constraints
Review focus
Meridian helps define the scope and architecture, review supplier submissions and identify the verification evidence needed for the project.
Work and outputs
Engineering work
- Translate OT cybersecurity requirements into clear engineering scope, boundaries, and design assumptions.
- Review zones, conduits, remote access paths, package interfaces, and supplier deliverables before acceptance points.
- Support IEC 62443-aligned thinking without turning project delivery into a generic IT compliance exercise.
- Help engineering teams produce evidence that can support design review, FAT, SAT, handover, and close-out.
Records produced
- System under consideration definition
- Zone and conduit model
- Design review comments and close-out tracker
- FAT/SAT cybersecurity evidence checklist
- Requirements and evidence matrix
Related industries
These sectors commonly create the operating constraints, supplier dependencies, and assurance pressures relevant to this audience.

Gas & Energy Infrastructure
OT cybersecurity support for gas transmission, energy infrastructure, compressor control, telemetry, vendor access, safety interfaces and assurance requirements.
Industry approach
Manufacturing
Practical support for production network segmentation, supplier-maintained machinery, engineering laptops, and line-level downtime risk.
Industry approach
Offshore & Process Industries
Assurance for vendor package systems, remote support links, strict change control, safety interfaces, and constrained maintenance windows.
Industry approach
Nuclear & High-Hazard Environments
Evidence-focused assurance for regulated engineering environments with strict change control, supplier review, and documentation requirements.
Industry approachRelevant technical capabilities
These engineering activities can be included in a scoped engagement.
Segment
Network Segmentation Engineering
Zones, conduits, architecture drawings, firewall schedules, and migration planning for live industrial networks.
View capability detailsAssure
IEC 62443 consultancy and project support
IEC 62443-aligned engineering support for project teams and integrators: define the system boundary, review supplier requirements and organise traceable design and verification evidence.
View capability detailsAssure
Engineering Assurance
Independent review of supplier designs, FAT/SAT evidence, cybersecurity documentation, and project close-out evidence for control system delivery.
View capability detailsDocument
Documentation & Design Support
Network drawings, IP schedules, firewall schedules, interface registers, cybersecurity procedures, and FAT/SAT documentation that support assurance and maintainability.
View capability detailsRelated services
Choose this when your project needs specialist engineering capacity. A defined OT cybersecurity work package for risk, architecture, design review, supplier interfaces and assurance evidence within an active industrial project.
Review design and assurance evidence
Use the discovery call to discuss the responsibility, project stage, evidence gap or operating constraint without sharing sensitive site details.