JEMS Marine, LLC
The home of theONE Vessel Command Center.
JEMS Marine is a Maryland LLC formed in 2026 to publish theONE — the operating layer for power yachts 40 feet and up. We exist for one reason: to make boat ownership feel less like managing twelve apps and more like running one vessel.
What We Make
theONE Vessel Command Center
A single source of truth for power yachts — live telemetry, crew roles, maintenance, playbooks, and the vendor vault in one offline-first iOS app. Currently in private beta.
Why JEMS Marine Exists
The modern power-yacht operation runs on a dozen disconnected apps. Live data lives in one place, charts in another, service history in a third, crew comms somewhere else again. None of them talk to each other, none of them work offline, and none of them know who the crew is or what their role allows them to see. The captain ends up being the integration layer — and when the captain rotates off, the institutional knowledge walks off the dock.
We started JEMS Marine to fix that, captain-first. That means building for the person on the bridge rather than the office: big tap targets, clear hierarchy, sensible defaults, and a tool that works at anchor where there's no signal. It also means being honest — surfaces stay silent until real data arrives, and the app never invents alerts or placeholder values.
One company, one product, one job: make a boat feel like a single vessel again instead of a stack of subscriptions.
Contact
General Enquiries
hello@jems-marine.com