See the Intensive Care Society guidance document - contact details of the nearest Hyperbaric Chamber are in the final section.
The Intensive-Care Society Guideline will be updated 2026 but there is not a lot changing in the management. Contact details may become easier in the near future.
NHS England is in the process of setting up the single point of access (SPOA) through which any institution can contact their nearest category one hyperbaric chamber.
The British Hyperbaric Association (BHA) website (British Hyperbaric Association | Hyperbaric Medicine ) has a link to all member chambers who can be contacted for advice.
Information about training, assistance with research and publications can be obtained from
bhahyperbaric@jpaget.nhs.uk