Arcady
DeDanann
The Bothy Band
The House Band (Ged Foley et.al)
Mary Bergin
Moving Cloud
Sliabh Notes
Martin Hayes (with or w/o Dennis Cahill)
Dervish
Danú
Nomos
Altan
Padraigín NíUllaighin
Boys of the Lough
Beginish
Dolores Keane
The Black Family (and/or Mary or Francis' solo stuff)
Kornog (Breton supergroup)
To name a few,
Rich