Superyacht carbon and compliance ledger

One ledger for every voyage.

Sea Ledgers records your yacht's fuel, voyages and charters once. From that single record you go carbon neutral, track EU ETS and FuelEU, and get the reports your captain, manager and owner need.

Superyachts moored in Monaco
Voyage Carbon Neutrality CertificateEU ETS allowancesFuelEU Maritime60+ report typesCrew Logbook

What we do

Everything your yacht reports, from one record.

Go carbon neutral

Offset a voyage, a charter, a season or any amount. Every tonne comes from the ledger, and every purchase comes with a numbered Voyage Carbon Neutrality Certificate.

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EU ETS and FuelEU

For commercial yachts of 5,000 GT and above: allowances owed, FuelEU balance and quotes, updated as the season unfolds.

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The ledger

One dataset per yacht: voyages, port stays, bunkerings, charters, emissions, tax and documents. Over 60 report types, each produced only where it applies.

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The Logbook

The crew logs departures, arrivals, bunkerings and charters on a phone, even offline. The captain checks, the manager approves.

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How it works

Set up once. Log as you sail.

  1. 1

    Onboard once

    One secure intake for the owner, the yacht management company and the vessel.

  2. 2

    Log as you sail

    The crew records each event as it happens. The captain checks it. The manager approves it.

  3. 3

    See your position

    Emissions, allowances and the FuelEU balance update with every approved entry.

  4. 4

    Act in one place

    Offset, request an EU ETS or FuelEU quote, and download certificates and reports.

The Logbook

The crew logs it. The ledger does the rest.

Departures, arrivals, noon reports, bunkerings with the delivery note, charter start and end, environmental records and customs events. Forms are prefilled, entries work without a connection and every step is recorded in a tamper-evident audit trail.

  • Crew enters, captain checks, manager approves
  • Months lock when they are closed
  • Approved entries feed the ledger straight away
See the ledger and Logbook
Sea Ledgers app screen for the fictitious yacht M/Y EXAMPLE XL

Who it is for

Built for the people who run the yacht.

Owners and family offices

One clear view of the yacht's footprint, obligations and certificates.

Yacht management companies

One contact, one invoice and one login across the fleet.

Captains and crew

A logbook on the phone instead of spreadsheets and email chains.

Charter brokers

Carbon neutral charters for guests, with commission for the life of the account.

Private records, public proof

Your data stays private. Your claims stay provable.

Client records are private: only your team and Sea Ledgers see them. Each certificate carries a number and a QR code, and credits are retired on the Orbex registry so every tonne can be checked.

  • Role-based access for owners, managers, crew and verifiers
  • Every document stored with its digital fingerprint
  • A tamper-evident audit trail for every entry
Sea Ledgers app screen for the fictitious yacht M/Y EXAMPLE XL

See it on a demo yacht.

Explore M/Y EXAMPLE XL, a fictitious 6,200 GT yacht, with its full ledger, Logbook and compliance pages.

Request demo access