About DefibFinder

DefibFinder is designed to help the public familiarise themselves with the locations of their nearest defibrillators. So that in an emergency when directed by a 999 call handler, they will already know the defibrillator's location.

DefibFinder can also support the optimum placement of defibrillators in a community to ensure existing coverage and coverage gaps are taken into consideration.

It also enables Guardians to check whether their defibrillator(s) is registered on The Circuit: the national defibrillator network. The Circuit is used by all 14 UK ambulance services.

Data from The Circuit dynamically flows to DefibFinder. If a defibrillator isn’t visible on DefibFinder it’s not visible to ambulance service call handlers when 999 is called in response to a cardiac arrest. The opportunity to help save a life could be missed.

Funding and Management

DefibFinder is funded and managed by British Heart Foundation.

The Circuit was developed by the British Heart Foundation in partnership with Resuscitation Council UK, St John Ambulance, the Association of Ambulance Chief Executives, NHS England, and Save a Life Cymru.

In 2025, Omaze raised funds for the BHF, which will help power The Circuit for the next two years.

British Heart Foundation (BHF) cannot guarantee and assume legal liability or responsibility for the accuracy of the data on DefibFinder. The defibrillator Guardians manage their own data on The Circuit, which pulls through to DefibFinder.