Ibex Angel Order
Idimmu
Ildsjo
  Illuster
Imbolc
Immortalised
  Imperial Dystopia (Dystopia)
  Impetu Feroci (Idimmu)
In Aetherium
  In Darkness
Inferi (Domini Inferi)
  Inferior (Eternal Conspiracy)
  Infernal
Infernal Destiny (Fallen Temple)
  Infernal Dream (Detonation)
  Infernal Legion (Martyr)
Infestis
Infinity
Infusco Cruor
  Inger Indolia
  Inner Scenes
Inquisitor
I.N.R.I.
  Inri (Deleterious)
In Ruins
  Insacris Nocturne (Havoc)
  Intestine
Inverted Pentagram (Omnihierophantom)
Invunche
Io (In Aetherium)
  Ihrmgaar
Irmin
Irrwisch
Isa
Iscariot
I Shall Move The Earth
Iskalla
Israthoum
Isthar