FOR SHIPOWNERS, SUPPLIERS AND PORTS

Determine lowest cost of compliance for any ship

Maritime sustainability is expensive. FuelEU Maritime, EU ETS and IMO Net-Zero are turning every ship into a multi-million-euro compliance liability over the next decade. Find the tools to determine the lowest cost for your fleet, compare decarbonization pathways, and connect with the suppliers who deliver them. Free to start, no login, open to anyone.

FREE TOOLS FOR ANYONE

From €0

Help with regulations should not cost €100,000+ a year like the competition. Free tools stay free. Premium tier unlocks downloads, database access and tailored business cases.

FROM SIGN-UP TO BUSINESS CASE IN

2 minutes

Open the Decarbonizer or any other tool, pick a ship, adjust the sliders. That's it. Your business case recalculates live based on the latest prices and regulatory updates, reducing weeks of work to mere minutes of joy.

THE PROBLEM / WHY WE EXIST

Maritime decarbonisation is getting harder to navigate, and most shipowners are on their own.

Three major regulatory frameworks are now running in parallel. They overlap, interact, and carry real financial consequences. Most SME shipowners don't have a sustainability department. And the tools that exist are either built for enterprise fleets, priced out of reach, or require months of consultant engagement just to understand the problem.

3+

Overlapping regulatory frameworks

FuelEU Maritime, EU ETS, IMO Net-Zero, each with different scopes, timelines and penalties. Most operators are exposed to all three simultaneously.

FUELEU MARITIME

CLIENTS

€Ms

Per-ship compliance exposure by 2035

A single mid-size tanker on EU intra-trade routes can face €3–5M in compliance costs over the next decade if no action is taken. Most owners don't know their number.

90%

Of the fleet is SME-owned

The majority of commercial shipping is operated by small and medium companies with no internal sustainability expertise, no dedicated compliance budget, and no platform to turn to.

REGULATION IN SCOPE

SUPPLIER LAYER

White-label supplier tools

Suppliers embed branded versions of the Decarbonizer on their own sites, or build custom tools with their pricing and products pre-loaded. Qualified leads arrive with vessel data already attached.

03. Make your business case

Determine compliance cost per year, select decarbonization options and adjust fuel prices to compare scenarios. Members can request supplier quotes, download and save business cases.

EU ETS

IMO NET-ZERO

01. Open access, not enterprise gatekeeping

The free tier is not a teaser, it is a commitment. The tools that matter most should be accessible to any operator, from a single-ship owner in Rotterdam to a small ferry company in the Adriatic.

03. A platform, not a project

We are not a consultancy that delivers reports. We are building software infrastructure with compounding value each new tool, dataset and supplier integration makes the whole platform more useful for everyone.

02. Enter your ship

Select from 30,000+ pre-loaded vessels or enter your own. Adjust fuel, voyage profile and power consumption.

EMBED ON YOUR OWN WEBSITE

FREEMIUM MODEL

Free tools that are actually useful not just demos

The Decarbonizer runs a full compliance cost model at no cost. Free is not a lead magnet. It is the product. Premium extends it, it does not replace it.

Not paywalled at the point of value.

DATABASE-DRIVEN

One shared data layer for the whole ecosystem

Ship registry data, fuel prices, regulatory parameters — maintained centrally and updated continuously. Every tool in the hub pulls from the same source. Users never deal with stale data.

Not spreadsheets with manual regulatory updates.

The result: a maritime decarbonisation platform not a maritime consultancy.

Software economics, open data principles, and a marketplace model. Built for the transition that is already underway.

CORE TOOL

The Decarbonizer

The flagship tool. Any ship, any regulatory framework, any fuel scenario modeled live. The core around which the rest of the hub is organized.

OPEN PHILOSOPHY

Open data, open methodology, open access

Our regulatory models and calculation methodologies are transparent. We believe open-source principles create more trust and broader adoption than proprietary black-box systems.

Not a locked algorithm behind a paywall.

EXPLORE TOOLS

CII RATING

€100k+

Annual cost of existing solutions

Enterprise sustainability platforms start at six figures per year. Consultancy engagements run for months. Neither model serves an SME shipowner who just needs to understand their exposure today.

AFIR SHORE POWER

CAPITAL LAYER

Financing layer

Connecting compliance investment decisions to green finance instruments. Shipowners who know their pathway can be matched with the capital to fund it.

EXPLORE MARKET

WHY WE ARE DIFFERENT / HOW WE ARE POSITIONED

Not consultancy-first. Not enterprise-only

Most maritime sustainability solutions are built for the top 5% of the market. We are building for the other 95%.

SUPPLIER DISTRIBUTION

White-label tools that turn suppliers into a distribution channel

Suppliers embed our tools on their own sites, under their brand, with their pricing. This distributes the platform to their customer bases without us having to acquire each user directly.

Not a supplier directory. An embedded platform.

MARKETPLACE LOGIC

From compliance modelling to qualified supplier connections

The hub closes the loop: a shipowner who identifies their compliance gap can immediately connect with suppliers who can close it — with vessel data already in hand.

Not a standalone tool. An end-to-end platform.

GET STARTED FREE

TALK TO US

PROJECT PORTFOLIO AND CASE STUDIES

What we have delivered

From exploratory studies and fleet analyses to white-label supplier tools and shore power assessments — built for and with real clients.

DAMEN SHIPYARDS

Exploratory study on EU ETS impact for the shipbuilder's customer base.

Damen needed to understand the regulatory landscape facing their customers across multiple focus regions and vessel types. The study surfaced what matters to those customers and which actions to prepare for.

Multi-region

Vessel and technology coverage

HEBO

Cost-effectiveness analysis of decarbonization measures, battery-focused.

HEBO needed to evaluate which decarbonization paths were most cost-effective for their fleet. The analysis compared options including battery electrification against the regulatory horizon, giving them a defensible investment case.

Battery-led

Investment pathway identified

HEEREMA

Carbon-neutral roadmap for a heavy-lift operator.

Heerema explored what a credible path to carbon-neutral operations looks like for their fleet. The analysis covered fuel pathways, technology readiness and regulatory alignment under FuelEU, EU ETS and IMO Net-Zero.

Net-Zero

Pathway mapped

QUADRISE PLC

Tailored business case tool comparing MSAR® and bioMSAR™ against conventional fuels.

Quadrise needed to translate clean-fuel technology into compelling value for shipowners. The web tool compares fuel costs, emissions and regulatory exposure under EU ETS, FuelEU Maritime and IMO Net-Zero, vessel by vessel.

3 regs

EU ETS, FuelEU, IMO Net-Zero

TEN08 ENERGY

Ammonia vs LNG comparison tool delivered in six weeks.

Ten08 needed to make the business case for ammonia bunkering ahead of building US infrastructure. The web tool calculates costs, emissions and compliance under FuelEU and EU ETS for any vessel profile.

6 weeks

From brief to live tool

NATPOWER MARINE

Shore power infrastructure modeling for a national port network.

NatPower Marine needed compliance modeling for a shore power rollout across multiple ports. The hub modeled demand, vessel readiness and operator economics, producing the basis for the investment memo.

National

Port network scope

PORT OF ROTTERDAM

Shore power vessel readiness assessment for incoming fleet.

The port needed clarity on cost impacts and considerations for getting vessels ready to receive shore power. The tools and report delivered intuitive insight at vessel level, usable by the commercial team.

Vessel-level

Readiness assessment

MOBILE OPS, US EAST COAST

Mobile shore power deployment study across multiple US East Coast ports.

A feasibility study for deploying mobile shore power assets at ports without permanent infrastructure. The output sized the addressable demand, the operator economics and the regulatory fit.

Mobile

Infrastructure-light alternative

PROJECT BOEI

Port-side decarbonization infrastructure coordination.

Project BOEI brought together port stakeholders to plan decarbonization infrastructure at the operator level. The hub's tools and ship database supported coordinated modeling across participants.

Multi-stakeholder

Coordinated planning

EU MRV / THESIS

THE VISION / WHAT WE WANT TO BUILD

Democratising maritime sustainability

Maritime decarbonisation should not be a privilege of the few. Every shipowner regardless of fleet size or budget deserves access to the same quality of decision support that today only large enterprises can afford.

We are building the open infrastructure for maritime sustainability: shared data, shared tools, shared value. The Spotify model for compliance — where access replaces ownership, and the platform gets smarter for everyone as it grows.

02. Shared infrastructure, shared value

Suppliers, ports, financiers and shipowners all need the same underlying data. We build and maintain that shared layer, so every participant in the ecosystem benefits without duplicating effort.

04. Long-term ecosystem thinking

Maritime decarbonisation is a 30-year transition. The infrastructure we build today should still be relevant in 2040. That means open data principles, modular architecture, and independent positioning.

THE MISSION / WHAT WE DO TODAY

Practical digital tools for the lowest cost of compliance

Sustainable Ships builds practical digital decision-support tools that help shipowners and suppliers determine the lowest cost of compliance under FuelEU Maritime, EU ETS and IMO Net-Zero for any ship, from day one, free.

01. Find your tool

Browse 25+ tools in the hub. Free and premium tiers added constantly, based on what users ask for. No login required for the free tier.

THE HUB / HOW WE ARE BUILDING IT

An integrated ecosystem, not a collection of tools

The hub is the architecture. Each component builds on the others — vessel data feeds the tools, tools feed the marketplace, the marketplace feeds the financing layer. The whole is greater than the sum of its parts.

SME-FIRST

Built for shipowners who can't afford a sustainability team

Every design decision starts with the question: can a 3-ship operator in Greece use this without a consultant? If not, we rebuild it until they can.

Not enterprise-only, not fleet-size gated.

DATA LAYER

Databases

Ship registry data, fuel price feeds, regulatory parameters and emissions factors — maintained and updated centrally. Every tool in the hub pulls from the same verified source.

MARKET LAYER

Marketplace

Shipowners who have identified their compliance gap connect directly with the suppliers who can close it. Quotes, shortlists and decisions happen inside the hub, not over email.

FIND YOUR TOOL, FREE

BOOK A 30-MIN CALL

ANY SHIP, ALREADY LOADED

30,000+

Pre-loaded with a large part of the global commercial fleet. Shipowners model their own ships in minutes. Suppliers build business cases for any prospect, no data discovery required.