

Mainstay
The #1 Marine Assurance System
Mainstay simplifies the complexity of vessel vetting, compliance and terminal operations. Designed for charterers and energy companies, it brings clarity, control and confidence to every decision.
Trusted by the world's leading energy companies:

Trusted Worldwide
With over 7,000 users globally and more than 79,500 vessels screened every year, Mainstay is the number 1 marine assurance solution for energy leaders around the world.

Comprehensive Risk Management at Your Fingertips
Mainstay delivers industry-leading marine risk management for tankers, barges, offshore vessels and their operators. Built for energy companies and designed to evolve with your risk requirements, it ensures your vetting processes stay compliant, efficient and future-ready.
From vessel screening to terminal performance, Mainstay enables you to work faster, safer and smarter.
Managing Director, MIS Marine
Dominic McKnight Hardy

Vetting for You, Like You
Configurable vetting processes with flexible rule profiles, ready-to-use templates and streamlined workflows.
Mainstay puts you in control, with tools that support better, more efficient human decision-making - not replace it.
The system delivers timely, data-driven insights that empower your team to make more informed, confident choices at every step.
Utilise MIS prepared templates to minimise manual data entry and improve efficiency.
Quickly evaluate vessel compliance, detect potential risks and accelerate decision-making with streamlined processes.
Keep all stakeholders aligned with a single, unified system where everyone can access the latest information and updates.
Connect with existing systems and data sources to maintain consistency and eliminate data silos.
Ensure data security by granting tailored access permissions based on roles and responsibilities.
Generate powerful reports that translate your data into actionable intelligence, helping you track trends, monitor risk and meet internal and external reporting requirements with ease.
Stay informed with timely updates on critical compliance changes or risk factors.
Connect every step of your vetting and compliance process, from nomination and screening to reporting and audits, within a single unified system for maximum efficiency and consistency.
Everything You Need for Confident Vetting
Apply your entire vetting policy in a single click.
Mainstay delivers colour-coded risk status, instant decision-making, and always-on compliance monitoring.

Your Single Source of Vessel Intelligence
Mainstay seamlessly integrates with the industry's most reliable data sources, delivering timely insights to enhance vetting decisions for safer, more informed operations.
One Platform. Built Around You
Modular Flexibility for Smarter Assurance
Mainstay is built on a modular foundation, giving you the flexibility to configure the system to the exact needs of your marine assurance operation. Whether you’re a one-person vetting team or a multi-national enterprise, our modular approach means you only use the features you need, with the freedom to scale as you grow.
This adaptability allows us to support a wide range of customers, from small, focused vetting teams to global charterers, without compromising on performance or usability.
Compliance
Integrate seamlessly with global bannings lists and sanction sources to provide visibility and inclusion across your vetting practices.
Mainstay Compliance
Geolocation
Leverage AIS data for detailed insights into voyage history, port calls, dark activity, STS events and monitored zones to deliver clear, timely visibility of location-based risks.
Mainstay Geolocation
Marine Terminal Operations
Enhance visibility, efficiency and control through integrated end-to-end terminal scheduling and cargo movement management.
Mainstay MTO
Marine Data Intelligence
Process and aggregate big data to identify global and local trends, forecast potential events, and support smarter, statistically informed operational decisions.
Mainstay Marine BI
Complete Confidence From the Very Begining

Enterprise-Grade Security. Built In.
Mainstay is built on a foundation of trust, with security and compliance at its core. The platform adheres to ISO 27001:2022 standards and is Cyber Essentials Plus certified, ensuring your data is protected to the highest industry benchmarks.
With robust encryption, audit-ready logging, role-based access controls and continuous monitoring, Mainstay safeguards sensitive information while supporting full transparency and accountability.

Guided Onboarding. Ongoing Support.
Getting started with Mainstay is simple. Our onboarding process is guided by experts who understand the marine assurance landscape, helping you get up and running quickly. Once live, you’ll have access to ongoing support from a responsive, specialist team dedicated to your long-term success.
Whether you're a new user or scaling your operations, we’re here to support every step of your journey.

Ready for Now. Prepared for What’s Next.
Mainstay isn’t just built to meet today’s standards - it’s built to stay ahead of them. Our in-house development team continuously refines and enhances the platform, responding to customer feedback, regulatory changes and emerging industry needs.
You benefit from regular updates, new features and performance improvements. Whether it’s adapting to a shifting compliance landscape or unlocking smarter ways to manage risk, Mainstay evolves to keep you future-ready.
Mainstay Features Check List
Features | |
---|---|
End-to-end support for tankers, barges and offshore vetting | |
Integrated compliance with over 40 global sanctions databases | |
Dynamic mapping of vessel/operator relationships | |
Scalable from team-level to enterprise deployments | |
Modular by Design – Start with what you need, expand as your requirements grow | |
The "Golden Record" – one trusted source of truth | |
Customised business logic for smarter vetting | |
AI-powered insights for trend analysis and proactive risk management | |
Backed by a global Community of Best Practice |
We’d love to understand your challenges
Let’s start the conversation
Whether you’d like to see Mainstay in action with a personalised demo, have a quick question, or want a full breakdown of features - we’re here to help.
Just fill out the form and one of our team will be in touch shortly.