CelesteOS Yacht PMS
What no one writes down

Every vessel does one thing no one writes down. It forgets.

Each rotation, a year of hard-won knowledge walks down the gangway in one person's head. The next engineer inherits equipment, not context.

What we believe

A vessel should own what it knows.

We believe the knowledge a crew earns belongs to the vessel, not to whoever happens to be aboard this season. The equipment stays when people leave. The understanding should too: why a fault keeps returning, which supplier had the right part, the fix that worked at 3 a.m. in a seaway.

A yacht that remembers is safer, quicker to fix, and worth more every year it runs. That conviction is the whole reason CelesteOS exists.

Where it came from

We learned this on the water.

Alex Short spent years as an Electro-Technical Officer, then Head of Department, on motor yachts from 70 to 125 metres: M/Y Freedom, Nero, Legend, Maryah, Whisper. More than once he joined mid-rotation and found the knowledge already gone, reduced to a document written at 1 a.m. by someone packing to leave.

"I built the system I wished had been there. Not to replace anything aboard, but to make sure the vessel kept what we knew."
Alex Short · Founder · former superyacht engineer
Alex Short, founder of CelesteOS
Where this goes

Our future is a fleet that never starts from zero.

CelesteOS runs beside the PMS you already trust. Nothing to rip out, nothing to migrate. The record simply stays with the vessel, and grows more useful with every rotation: not worth more in money, worth more in use.

We are building toward one thing. A fleet where no superyacht loses its memory at the end of a season, ever again. Where the next engineer inherits a decade of context instead of an empty folder, and the vessel only gets harder to leave behind.

If you run a vessel

The door is open.

We work with a few vessels at a time, by selection, so we can do it properly: your register, certificates, and history imported for you, and the record building from day one.

On the calls so far, the conversation keeps ending in the same place:

"This will be the standard software across yachts."

The verdict we keep hearing on pilot calls

We would rather prove than claim. How we earn trust at audit →

Understand the pilot →
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500+ from across the fleet follow the build.