Drainland are comprised of ex Serpents members and others who are taking a less clausthrophobic approach to Serpents in their music but still heavy and unsettling nonetheless. A bit like Unsane through a sludge doom grinder. They have music up here http://www.myspace.com/drainlanddublin and some live videos as well.
Divisions Ruin are a 6 piece crusty band from Kilcoole in Wicklow with the dual vocals and grindy guitars everywhere. These guys have listened to plenty of Tragedy and its ilk on their iPods http://www.myspace.com/divisionsruin
I'll Eat Your Face Corks 2 piece answer to a bad mood are dropping by to show us that grind can be fun. If you've seen their latest DVD you'll have seen plenty of funny incidents from these deranged Barrys. http://www.myspace.com/illeatyourfaceireland