Steve DiGiorgio

Within his genre, Di Giorgio is respected for his highly technical playing skills. He is also credited with being the first bassist to bring fretless bass playing into the heavy/extreme metal genre, and normally plays bass by using his fingers, although he has been seen using a pick on certain songs. Di Giorgio's influences include Geddy Lee, Chris Squire, Geezer Butler, Steve Harris, Stanley Clarke, Jaco Pastorius, Billy Sheehan, Dave Pegg and Charles Meeks. Di Giorgio explained the development of his playing style in 2017: "Working against what people consider comfortably normal, and swimming against the musical current from a young age has helped me stay out of the shadows as a bassist and as so many always still strive to keep it there. Fuck them."

• Sadus – Illusions (1988) • Autopsy – Severed Survival (1989, session) • Sadus – Swallowed in Black (1990) • Autopsy – Fiend for Blood (1991, session) • Death – Human (1991) • Sadus – A Vision of Misery (1992) • Death – Individual Thought Patterns (1993) • Sadus – Elements of Anger (1997) • Testament – The Gathering (1999) • Control Denied – The Fragile Art of Existence (1999) • James Murphy – Feeding the Machine (1999) • Testament – First Strike Still Deadly (2001) • Dragonlord – Rapture (2001) • Iced Earth – Horror Show (2001) • Vintersorg – Visions from the Spiral Generator (2002) • Artension – Future World (2004) • Lunaris – Cyclic (2004, guest) • Quo Vadis – Defiant Imagination (2004, session) • Takayoshi Ohmura – Nowhere to Go (2004) • Vintersorg – The Focusing Blur (2004) • PainmuseuM – Metal for Life (2005) • Various artists – Roadrunner United (2005) • Rob van der Loo – Freak Neil inc. Characters (2005, guest) • Sadus – Out for Blood (2006) • Scariot – Momentum Shift (2007, session) • Sebastian Bach – Angel Down (2007) • Necro – Death Rap (2007) • Roger Staffelbach's Angel of Eden – The End of Never (2007, session) • Futures End – Memoirs of a Broken Man (2009) • Faust – From Glory To Infinity (2009) • Charred Walls of the Damned – Charred Walls of the Damned (2010) • Heathen – The Evolution of Chaos (2010, guest) • Christian Muenzner – Timewarp (2011, guest) • Charred Walls of the Damned – Cold Winds on Timeless Days (2011) • Johnny Newman – More than Ever (2011) • Anatomy of I – Substratum (2011) • Sylencer – A Lethal Dose of Truth (2012, guest) • Synesis Absorption – Forever Untouched (2012) • Ephel Duath – On Death And Cosmos (2012) • Soen – Cognitive (2012) • Memorain – Evolution (2012) • Mythodea – Mythodea (2013) • Artlantica – Across the Seven Seas (2013, session) • Jeff Hughell – Chaos Labyrinth (2013, guest on track 3) • Gone in April – Threads of Existence (2016) • Testament – Brotherhood of the Snake (2016) • Counter-World Experience – Pulsar (2016, guest on track 7) • Art X - The Redemption of Cain (2016) • Spirits of Fire – Spirits of Fire (2019) • Geoda – Here and Now (2019) • Testament – Titans of Creation (2020) • Act of Denial – Negative (2021) • Megadeth – The Sick, the Dying... and the Dead! (2022, session) • Quadvium – Tetradōm (2025) • Testament – Para Bellum (2025) • Nuclear Messiah - Black Flame (2026, guest on tracks 2 and 5)