Shipping that runs on data it can trust.

Every report, every claim and every decision at sea rests on vessel data. We started Neptune Zero so that this data is collected from the sensors, checked every day, and worthy of the decisions it carries.

Thetius Top 150 · 2026 Named one of the Most Innovative Companies in Maritime Read what they wrote
Fleet map with live vessel positions and weather
Fleet map
Auxiliary engine performance: live gauges and averages
Engine performance
On board: main engine, generators and fuel meters, live
On board
Trusted by owners and managers
  • Wallem
  • Seanergy
  • NYK Line
  • Maran Dry Management Inc.
  • Spring Marine Group
  • Performance Shipping Inc.
  • Seapioneer
  • Stealth Maritime Corporation S.A.
  • Arcadia Shipmanagement Co. Ltd
  • Target Marine S.A.
  • New Shipping Limited
  • Propulsion Analytics

We decided to build the means we never had.

Our story
What we built

What we built to solve it.

Our own equipment on board, a performance platform in the office, and a watchkeeper in between. Delivered together, as one service.

On board · Voyage eventslive
On-board device: voyage events such as berthing, bunkering and drafts
01 · Collection

The Automated Noon Report

The first noon report written on board from validated sensor data instead of by hand. Arrivals, departures and bunkering are detected from the data, not declared afterwards. Patent pending.

Daily checks · MV Alphatoday
Main engine22 checkspassed
Fuel system18 checks1 to review
Generators14 checkspassed
Navigation9 checkspassed
Noon report vs sensors11 checkspassed
02 · Validation

High-frequency data that is questioned every day

Every reading is checked against the vessel itself, her crew's reports and the world outside, every day, before anyone uses it.

Finding · MV Alphadrafted today
ObservedM/E fuel 6 % above the vessel's own model for three days.
May indicateConsistent with flow-meter drift rather than the engine.
Verify firstCheck the flow meter against tank soundings.
Then actIf confirmed, recalibrate the flow meter.
03 · Judgement

NZ Watchkeeper

An agent that reads the results as an experienced superintendent would, ranks what matters and drafts the query to the vessel. Then it stops: a person decides, and every decision is logged.

Edge processing

The work starts on board.

Our equipment processes the data where it is produced. The vessel keeps reporting when the link drops, the office receives data that has already been checked, and the full record stays available to you.

  • Checked at the source

    Before anything reaches the office.

  • Works through lost connectivity

    The vessel does not stop because the satellite did.

  • Light on bandwidth

    Lower satellite costs, less data in transit.

How we work

More than equipment, more than a dashboard: a data-quality service.

The equipment and the platform are how we deliver it. Trusted data, and people who answer for it, is what you receive. Turnkey installation and onboarding, on the sensors your vessels already have.

What you receive
  • Trusted data

    Validated every day, on every vessel, before anyone uses it.

  • Reports ready for your verifier

    MRV, DCS, ETS, FuelEU, CII and charter party from one validated record.

  • Turnkey onboarding

    Engineering study, installation and commissioning done for you.

  • Support that answers

    Shipping people behind every vessel, from day one to every finding.

Your data stays yours.

Owner-controlled from day one: who sees what, for how long, and in which format it leaves the platform.

  • Owner sees everything

    Operational, technical and commercial views across the fleet belong to the owner.

  • Charterers by permission

    Access to a subset of voyage data only when, and for as long as, the owner says so.

  • Encrypted, retained on your terms

    Encrypted in transit and at rest; retention controlled by the owner.

  • Open, not locked in

    API and scheduled exports into your own systems, in your format.

What changes for you

Findings, not flags.

One board, the fleet ranked by risk, each finding with an owner and a next step. From anomaly to a drafted query within a day.

Fleet Control Centerillustrative
MV ALPHAExhaust deviation on cyl. 4, alarm agreesTechnicalCritical
MV BETAC/P speed short in good weatherOperationsWarning
MV GAMMAReported and measured fuel apartVesselWarning
MV DELTAFuel flow meter frozen since 02:10DataWatch
MV EPSILONCII trending towards the next bandComplianceWatch
~3 %Fuel savedWhere anomalies were acted on early
Hours, not weeksPer disputed voyageEvidence already assembled
Within a dayFrom anomaly to queryFlagged at the source

Typical figures from the connected fleet.

Next step

See it on one of your own vessels.

A 30-minute walk-through on one of your vessels, or on our demonstration vessel. No slides.

Partners, integrators and investors: talk to us.