Fathom 
Digital Logbook
A digital vessel logbook built for working fleets
Capture voyages, watch notes, handovers, drills, incidents, machinery hours, and bunkering in one structured record. Crews can keep logging at sea, while shore teams can search, review, and export the history without waiting for paper pages to come back to the office.
Built around the vessel record
Log entries at sea
Crews can record voyage details, watch notes, handovers, drills, incidents, fuel, and machinery hours even when mobile coverage drops out.
Consistent event types
Structured entry types help masters and crew capture the right details for daily operations, not just a short free-text note.
Searchable shore access
Operations, maintenance, and compliance teams can find past entries by vessel, date, incident, or checklist.
A vessel logbook is only useful if it is complete, legible, and available when someone needs to make a decision. Paper books are familiar, but they slow the business down when shore staff need yesterday's handover notes, a fuel record, a machinery-hour reading, or the sequence of events around an incident.
Fathom gives crews a practical digital logbook for commercial vessel operations. The record can include voyage details, crew on board, watch notes, drills, checklists, defects, incident reports, machinery hours, bunkering, and attachments. Entries made on the vessel and become immediately available for anyone on the team.
That means you can check what happened on a particular day, compare hours against servicing plans, and pull supporting records for a survey or internal review without chasing photos of handwritten pages.
What changes day to day
Fewer missing details
Structured fields prompt crews for the information that normally gets lost in a paper margin: vessel, time, location, activity, personnel, equipment, follow-up actions, and supporting notes.
Better handovers
Incoming crew and shore staff can see the latest operational notes, defects, completed checks, and items still waiting for action before a small issue becomes a repeat phone call.
Cleaner maintenance history
Machinery hours, fuel movements, and checks sit with the vessel history, giving you a clearer basis for servicing, investigation, and cost review.
Records ready for review
When a surveyor, customer, or insurer asks for evidence, the team can export the relevant logbook history instead of assembling a file from scans and emails.
Watch logs and event entries
Voyage records, watch notes, drills, checklists, reports, and incidents can each use a format suited to the task. Crew keep the speed of a daily log while the business gains a record that can be filtered and understood later.
Voyage record and handover trail
Trip logs, crew changes, completed checks, defects, and follow-up actions stay connected to the voyage. That gives masters and crew a clear handover.
Records for machinery hours and bunkering
Engine hours, generator hours, fuel taken on, and related notes can be recorded with the same daily workflow. The result is a more useful trail for maintenance intervals, fuel reconciliation, charter review, and incident follow-up.
We're building the future of vessel management systems
If that sounds interesting to you,
contact us