Smarter offshore operations
with Global Maritime software
Software built for offshore
Global Maritime leads software innovation for the marine and offshore industries. Designed by domain specialists and backed by decades of offshore experience, our proprietary tools help clients plan smarter, reduce risk, and optimise performance in complex, highly regulated environments.
Whether simulating offshore wind installations, analysing moorings, or assessing vessel stability, our software delivers clarity, precision, and confidence at every stage of offshore operations.
Request a demo.
Experience Smarter Offshore Planning with GM OPSIM & GMoor.
Experience Smarter Offshore Planning
Request a demo today to see how GM OPSIM enhances offshore operations through advanced simulation – optimising planning, reducing risk, and improving decision-making.
Discover how GMoor enables safe, efficient mooring design and analysis – optimising mooring analysis, minimising operational risk, and supporting smarter decisions in complex offshore environments.
Trusted by leading developers to deliver results in complex environments:
GM OPSIM
— Plan better,
operate smarter
Our flagship software, GM OPSIM, is a discrete-event simulation platform built specifically for planning and analysing complex offshore operations. It enables modelling of offshore projects from end to end – before committing time, money, or assets.
With OPSIM, you can simulate real-world logistic scenarios, weather delays, vessel availability and suitability, equipment uptime, and personnel constraints – all in a dynamic and interactive environment.
Key Benefits:
OPSIM empowers better decision-making in offshore wind, oil & gas, and decommissioning campaigns.
- Simulates operations in realistic offshore conditions
- Optimises project sequencing, vessel spreads, and costs
- Identifies schedule risks and downtime bottlenecks
- Visual playback for stakeholder engagement
- Supports early-phase concept selection through late-stage execution planning
GMOOR
— Advanced mooring analysis, simplified
GMOOR is our in-house mooring analysis software, trusted for both standard and complex offshore mooring configurations. It supports frequency-domain and low-frequency time-domain analysis, enabling precise modelling of vessel motions and mooring forces in varying sea states.
GMOOR is used globally by our engineering and marine operations teams and has proven indispensable for float-off procedures, manual and auto-balance thruster control and semi-sub moorings.
Key Capabilities:
- Frequency domain and quasi-static mooring analysis
- Full vessel and environmental response modelling
- Tension prediction under dynamic and extreme conditions
- User-friendly interface for quick set-up and analysis
GM Catenary
— Efficient analysis of moorings and towlines
GM Catenary offers rapid single-line catenary calculations for mooring systems and towing arrangements. It allows users to evaluate tension, line angles, and touchdown points with speed and accuracy – making it ideal for early-phase assessments or quick verifications offshore.
Highlights:
- Simple interface for fast input and result validation
- Visual outputs for mooring configurations
- Used by marine teams and DP operators worldwide
Custom software
— For experts
In addition to our commercial products, Global Maritime develops bespoke software for clients with unique operational needs. Whether it’s floating wind simulation models, digital decision-support tools, or fully proprietary systems, we provide end-to-end development—from initial concept and design through to testing, deployment, and ongoing optimisation.
Our solutions are built to integrate seamlessly into real-world operations, giving clients the clarity, efficiency, and confidence they need to perform at their best.
