Stakeholder
OT & Cybersecurity Teams
For teams examining asset visibility, trust boundaries, remote access and exposure across brownfield control networks.
Decisions and constraints for this role
Questions likely to need resolution
- asset visibility
- network segmentation
- architecture weaknesses
- vendor access
- unsupported devices
- monitoring gaps
- evidence quality for risk decisions
Review focus
Meridian reviews OT architecture, trust boundaries and access paths, then records findings that engineering teams can use to plan changes.
Work and outputs
Engineering work
- Assess OT network architecture, trust boundaries, remote access, and critical communication paths.
- Build evidence that helps prioritise exposure reduction across legacy and brownfield environments.
- Support segmentation strategy, asset visibility improvement, and practical control selection for OT constraints.
- Create outputs that cyber, engineering, and operations teams can use in the same decision process.
Records produced
- OT architecture and exposure review
- Asset and interface register
- Segmentation options paper
- Remote access review
- Prioritised exposure reduction action plan
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
Water Utilities
Cybersecurity and documentation support for remote pumping stations, telemetry, legacy PLCs, mixed vendor estates, and ageing SCADA platforms.
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
Renewables
Support for distributed renewable assets, remote monitoring, supplier platforms, telemetry links, and operational data transfer.
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.
Assess
OT Cybersecurity Assessments
A technical baseline of a defined OT environment: system boundaries, architecture, critical assets, access routes, operating practices and the actions that warrant priority.
View capability detailsSegment
Network Segmentation Engineering
Zones, conduits, architecture drawings, firewall schedules, and migration planning for live industrial networks.
View capability detailsRisk
IEC 62443-Aligned OT Cyber Risk Assessments
Structured assessment of credible cyber threat scenarios, operational consequences, existing controls and risk treatments for a defined industrial control system.
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 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.
Assess OT architecture and exposure
Use the discovery call to discuss the responsibility, project stage, evidence gap or operating constraint without sharing sensitive site details.