The Roscommon Rapid Response group hopes to apply for more funding for defibrillators early next year to fill any remaining gaps in the county.
The group has developed a free app, known as Emcall which people can download onto their smartphones.
The app will locate the nearest defibrillator and send notification to the nearest trained community members who can respond within 4 to 5 minutes.
The 4 to 5 minute response time has been proven to achieve up to 75% survival rate for cardiac arrest victims, whereas the current survival rate in Ireland is just 5%.
A series of meetings are taking place across the county in the next couple of weeks and John Mc Dermott from the group says they'll be updating local groups about the scheme as well as asking them to help fill in defib 'blackspots'
"One of the main things is that we intend to apply for grant aid for defiibrillators where we need them in blackspots round the county. So we'll make a county application hopefully early next year to provide defibrillators in these blackspots. We need to talk to the groups because they are the people who know their own area. So we provide them with a map of the existing defibs, measurements of distance between them, and they can look their own, let's say mid-Roscommon area, and find where there's a need for a defibrillator".