Indie30.Com has seen 20 bands.

Band Concerts Seen
  Active Child 1 concert
  Anna Calvi 1 concert
  Austra 1 concert
  Bullion 1 concert
  Chairlift 1 concert
  Cults 1 concert
  DZ Deathrays 1 concert
  Elizabeth Rose 1 concert
  EMA 1 concert
  Feist 1 concert
  Girls 1 concert
  Laura Marling 1 concert
  M83 1 concert
  The Horrors 1 concert
  The Pains of Being Pure at Heart 1 concert
  Toro Y Moi 1 concert
  Twin Shadow 1 concert
  Washed Out 1 concert
  WU LYF 1 concert
  Yuck 1 concert