| Im Buck Naked | | Male |
| I Nipoti Del Faraone | Italy | |
| I Scream | Belgium | Male |
| I Start Counting | | |
| I.A.M. Umbrella | | |
| I.C.H. Der Bundesminister | Germany | Male |
| I.C.U. | Belgium | Male |
| I.D.K. | | Male |
| I.G Farben | United Kingdom | Male |
| I.M.C.P. | | Male |
| I.M.M. | France | Male |
| I.M.S. | | |
| I.M.U. (Intuitive Music Unit) | United States | Male |
| I>N>C> | United States | Male |
| Ian Boddy | United Kingdom | Male |
| Ian Breakwell | United Kingdom | Male |
| Ian Costello | | Male |
| Ian Dobson | United Kingdom | Male |
| Ian Hamilton Finlay | United Kingdom | Male |
| Ian Hartley | Australia | Male |
| Iannis Xenakis | | Male |
| Iao Core | United States | Male |
| Iasos | United States | Male |
| IBF (Ideas Beyond Filth) | United Kingdom | Male |
| Ibliss | Germany | Male |
| Ice 9 | France | Male |
| Ice Cream Blisters | | Male |
| Ich | Germany | Male |
| Ich & JAR & Demian | Germany | Male |
| Ich + Du | Germany | Male |
| Ich Bin Zwei Öltanks | Germany | Male |
| Ich Libido | France | Male |
| Ich Steh Nicht Gerne Draussen Orchestra | | Male |
| ich und die Wirklichkeit | | Male |
| Iconoclast | | Male |
| Icons | | |
| Icons of Filth | | Male |
| Ideal | Germany | Mixed |
| Ideal Morphogenesis | United States | Male |
| Idee Du Femelle | | Male |
| Idee Du Femelle, Taché | Spain | |
| Idetemp | | |
| Idid Idid | | Male |
| Idid Idid & New 7th Music | | Male |
| Idiom | United Kingdom | Male |
| Idios Kosmos | Germany | Male |
| Idiot-Savant | United States | Male |
| Idle State | Germany | Male |
| Idoleyes | United States | Male |
| Ieximal Jelimite | Spain | |
| If (UK) | United Kingdom | Male |
| If Bwana / PS Bingo | | Male |
| If, Bwana | United States | Male |
| If, Bwana | | Male |
| If, Bwana & Dog As Master | United States | Male |
| If, Bwana & Dog as Master & Ain Tow | United Kingdom | Male |
| If, Bwana & John Hudak | United States | Male |
| If, Bwana & Nomuzic | United States | Male |
| If, Bwana & P.S. Bingo | United States | Male |
| If, Bwana - Enstruction | United States | |
| If, Bwana / XTSW | | Male |
| If,Bwana | | Male |
| If,Bwana & Dog As Master | | Male |
| If,Bwana, PS Bingo | | Male |
| IFA Wartburg | Sweden | |
| IFCO | | |
| Igam Ogam | United Kingdom | |
| Ignazio Lago | Italy | Male |
| Igneous It | United States | Male |
| Ignite | | Male |
| Ignition | Germany | Male |
| Igor Wakhevitch | France | Male |
| Ihre Kinder | Germany | |
| Iida Kajino | | Male |
| Ildefonso Aguilar | Spain | Male |
| Ilhan Mimaroglu | | Male |
| Ilitch | United States | Male |
| Illogico | Italy | |
| Illusion Of Safety | United States | Male |
| Illusion Of Safety & Dead Tech | United States | Male |
| Illusion Of Safety / City Of Worms / Eric Lunde | | Male |
| Illusion of Safety / Vidna Obmana | | Male |
| Illusion Of Safety with Dead Tech | | Male |
| Illusion Of Safety, Eric Lunde,City Of Worms | | Male |
| Illusions Of Beaity | | Male |
| Ilo Istatov | | Male |
| Ilse Garnier | France | Male |
| Ilya Kabakov / Eric Bulatov | | Male |
| Im Namen des Volkes | Germany | Male |
| Im Nebel / Mausoleum | Norway | |
| Image Par Image | Belgium | Male |
| Imaginary Band | | Male |
| Imaginary Fruitgum Liberation Service | Switzerland | Male |
| Imbroglio | United States | Male |
| Imminent Starvation | Belgium | Male |
| Immolation by SCUM | | Male |
| Immoral Roberts | United States | Male |
| Immortal Agony / Mangled | | |
| Impact | Netherlands | Male |
| Impact Test | United States | Male |
| In Aeternam Vale | France | Male |
| In Camera | United Kingdom | Male |
| In der Strafkolonie | | Male |
| In Kuyo | | Male |
| In my Dead Sisters Memory | | |
| In Sachen der Könige | Germany | Male |
| In Slaughter Natives | Sweden | Male |
| In the Nursery | Germany | Male |
| In Zhe Gaza Megakitsch | France | Male |
| Inane | United Kingdom | Male |
| Inca Babies | Germany | Male |
| Incapacitants | Japan | Male |
| Incapacitants & Hijokaidan | Japan | Male |
| Incontinents | | |
| Incredible Coöp | Netherlands | Male |
| Incubated Sounds | Switzerland | Male |
| Incubus Sukkubus | Germany | Male |
| Index Metrics | | Male |
| Index Sign | Germany | Mixed |
| Indian Rope Burn | | Male |
| Individualterroristen | | Male |
| Individualterroristen and Stahl-Punx | Germany | Male |
| Industria Masoquista / Kadef | | |
| Industrial High Society | | |
| Inertia | | Male |
| Inez Michiels | | Female |
| Infatuation | Netherlands | Male |
| Infected Wound | | |
| Influenza Prods | Italy | Mixed |
| Information & Interrogation | Germany | Male |
| Information (US) | United States | |
| Information Aggression | Netherlands | Male |
| Information Systems | Australia | Male |
| Information Systems & Moralunary Class | Australia | Male |
| Information Systems and Moralunary Class | | Male |
| Ingeborg Luescher | Switzerland | Female |
| Ingleton Falls | | |
| Ingram Marshall | | Male |
| Ingus Bauseniks | | Male |
| Inkubus Sukkubus | | Male |
| Inkuyo | | Male |
| Innere Mission: Vision | Germany | |
| Inox Kapell | Germany | Male |
| Insane Picnic | United Kingdom | Male |
| Insanity Defense | | Male |
| Insecticide | Netherlands | Male |
| Insekt | | Male |
| Inserts | United States | |
| Instant Automatons | United Kingdom | Male |
| Instant Music | Germany | Male |
| Instead Of | Belgium | Male |
| Instigators | United Kingdom | Male |
| Institut Für Psycho-Hygiene / Rudolf Eb.er | Switzerland | |
| Institute | Jugoslawien | |
| Instruction | | Male |
| Integendeel | | Male |
| Intelligent Cattle | | Male |
| Intence | Germany | |
| Inter City Static | United Kingdom | Male |
| Inter Nos | | Male |
| Interaccion | Spain | Male |
| Internal Autonomy | | |
| Internal Fusion | | |
| International Musique Concrete Assembly, | | |
| International Terrorist Network & Mental Anguish | United States | Male |
| Interzone | Germany | |
| Into the Abyss | | Male |
| Into Your Hands | | Male |
| Intrinsic Action | United States | Male |
| Introducing Lord Fester & Sir "Pinky" | United States | Male |
| Introit | France | Male |
| Introverts | | Male |
| Intuition | | Male |
| Inutik | | Male |
| Inverse Zanatone | United States | Male |
| Inverse Zanatone | United States | Male |
| Invisible Universe | | |
| Invivo | Japan | Male |
| Inzekt | Switzerland | Male |
| Inzucht & Ordnung | Germany | Male |
| Ion Exchange | United States | Male |
| IOSS (Jos Smolders) | Belgium | Male |
| IoxoI | United States | Male |
| Iphar Clinic | United Kingdom | Male |
| Ipso Facto | | Male |
| IQ | | Male |
| IQ-4 | Netherlands | Male |
| Ir Visa Tai Kas Yra Grazu Yra Grazu | | |
| Ir Visa Tai, Kas Yra Grazu, Yra Grazu | | Male |
| Irikarah | | |
| Irmler / Oesterhelt | Germany | Male |
| Iron Brotherhood | United Kingdom | Male |
| Iron Curtain | United States | Male |
| Iron on Eye | United Kingdom | |
| Ironic Afternoon Orchestra | Japan | Male |
| irr. app. (ext.) | United States | Male |
| Irritant | United Kingdom | Male |
| Irritant & Ramleh | United States | Male |
| Irsol | United Kingdom | Male |
| Isa Haihappen | Germany | Female |