| Year | Artist | Release | Role(s) | Song(s) |
|---|
| 1995 | Michael Gira | Drainland | Organ, backing vocals | "Blind" |
| Producer, musical arrangements | — | |
| 1996 | PBK | Life-Sense Revoked | Vocals, harpsichord | "Beauty's Punishment" |
| Vocals, instruments | "Courage Collage" |
| 1997 | PBK | Headmix | Vocals | "World's Disappeared" (remix) |
| 1998 | Backworld | Isles of the Blest | Vocals | "Beautiful Dream" |
| The Body Lovers | Number One of Three | Vocals | — |
| C17H19NO3 | 1692 / 2092 | Vocals | "The Room of Ice", "Electric Air" |
| Ignis Fatuus | The Futility Goddess | Vocals | "Communion", "Cache Toi", "Encomium" |
| 1999 | Backworld | Anthems From the Pleasure Park | Vocals | "The Naked Soul" |
| Thread | In Sweet Sorrow (EP) | Vocals | "In Sweet Sorrow" |
| 2000 | Steven Severin | The Woman in the Dunes | Vocals | "I Put a Spell on You" |
| Thread | Abnormal Love | Vocals | "In Sweet Sorrow", "Contours" |
| 2001 | Neotropic | La prochaine fois | Vocals | "Cornershop Candy" |
| 2002 | Karma | God Is Mine | Vocals, piano, synthesizer | "Trance", "Recover" |
| Oxbow | An Evil Heat | Vocals | "S Bar X" |
| 2003 | A Perfect Circle | Thirteenth Step | Vocals | "The Noose", "Lullaby" |
| 2004 | Kirlian Camera | Invisible Front. 2005 | recording | "Kobna Dob (The Sinister Season)" |
| Vocals, electronics | "A Woman's Dreams" |
| Meridiem | A Pleasant Fiction | Vocals | "Carlotta" |
| Rivulets / Marc Gartman | Rivulets / Marc Gartman | Vocals | "Cutter II" |
| 2006 | Monica Richards | InfraWarrior | Vocals | "Sedna" |
| Lustmord | Rising | Vocals | "Lust" |
| Larsen | SeieS | Vocals | — |
| 2008 | Cobalt | Eater of Birds | Backing vocals | — |
| Jesu | Lifeline | Vocals, recording | "Storm Comin' On" |
| Puscifer | "V" Is for Vagina | Backing vocals (sampled) | "Trekka" |
| Guapo | Elixirs | Vocals | "Twisted Stems: The Selenotrope" |
| Love Is Nothing. | Chapter IV | Vocals | "Hungry Ghost" |
| 2009 | Cattle Decapitation | The Harvest Floor | Vocals | "The Harvest Floor", "Regret & The Grave" |
| Cobalt | Gin | Backing vocals | — |
| A Storm of Light | Forgive Us Our Trespasses | Vocals | "The Light in their Eyes", "Across the Wilderness" |
| 2010 | The Austrasian Goat | Stains of Resignation | Vocals | "Voice of Aenima" |
| 2011 | A Storm of Light | As the Valley of Death Becomes Us, Our Silver Memories Fade | Vocals | "Collapse", "Death's Head" |
| Morne | Asylum | Vocals | "Volition" |
| Strange Attractor | Anatomy of a Tear | Vocals | "Otherworld" |
| Sada | Hauntology | Vocals | "The Eucharist" |
| 2012 | Asva & Philippe Petit | Empires Should Burn... | Vocals | "The Star Implodes" |
| Naer Mataron | Ζήτω Ο Θάνατος | Vocals | "Ζήτω Ο Θάνατος" |
| Sky Burial | There I Saw the Grey Wolf Gaping | Instruments | "Incantare", "There I Saw the Grey Wolf Gaping" |
| Swans | The Seer | Backing vocals | "The Seer Returns", "A Piece of the Sky" |
| 2013 | Voice collage | "A Piece of the Sky" |
| Lustmord | The Word as Power | Vocals | "Andras Sodom" |
| Voids | Burial in the Sky | Keyboards | "Desert Dawn" |
| In Solitude | Sister | Backing vocals | "Horses in the Ground" |
| Meridiem | A Scattering Time | Vocals | "Carlotta", "River of Fire" |
| Brigand | Zaplešimo Grešnici | Vocals, keyboards | "Tri Noći" |
| Man's Gin | Rebellion Hymns | Vocals | "Sirens" |
| 2014 | Crone | Gehenna | Backing vocals | "Dead Man" |
|
