One platform for any ambulance service, anywhere: the patient record, the drug register and the live operational picture — built for the places with no signal, no time, and no second chances.
An ambulance service runs on three questions: what is happening to the patient, what state is the gear in, and where is everything right now. Castellan answers all three from one record — so the answers can never disagree. And every service runs it on a dedicated database of its own.
The mission and the patient in one app, dispatch to handover. A scribe listens while hands stay on the patient, vitals score themselves as they land — and every screen works with zero coverage.
Controlled drugs, kit checks and expiries on an append-only evidence chain. Dual signatures captured at the moment they happen — a register that cannot be quietly edited. Ever.
Fleet readiness, inbound patients, major-incident command. Crews, aircraft and hospitals reading from the same page — live, acknowledged, accountable.
Everything below ships in the same record, under the same rules: offline first, append only, and a person confirms everything.
Every screen a crew must read works with no signal at all. Writes queue and arrive when the world allows — an aircraft retry is a normal case.
The page that wakes the right people. First tap marks the vehicle responding — and the whole crew sees who's got it. You choose how it sounds, never whether.
Purpose-built for ambulance practice, learning from every correction working paramedics make. Nothing enters the record until a clinician confirms it.
Adult, maternity and every paediatric group from the national charts, recalculated with each set of vitals — honest about what's missing.
Advice sought is part of the record: who was consulted, how, and what was decided — captured at the moment, not reconstructed afterwards.
METHANE, triage matching the wristbands in the pack, casualty tracking, transport boards. When one patient becomes twenty, it's the same app at scale.
Structured case review on an append-only record. Every change attributed, every supersede kept — the audit trail is the design.
Training, endorsements and CPD hours kept beside the clinical record they come from — the education file that stays current.
Coverage is a luxury. The record never depends on one.
Records append, supersede and attribute. They never silently change.
Machine-made content is a suggestion until a clinician accepts it — and both facts are kept.
Every screen is tested where it has to work — in a moving ambulance, under a rotor, at 2 a.m.
Castellan was founded by a working critical care paramedic — decades of frontline experience, put straight into the design. The products exist because the people who needed them couldn't buy them anywhere.
Both products are in active development and field testing now. If you run an ambulance service — anywhere in the world — and want the early conversation — we answer email fast.