Spirotin is a Los Angeles band formed in 2021 that merges black metal and metalcore, combining the atmospheric malice and tremolo aggression of black metal with the rhythmic heaviness and breakdowns of metalcore.

Spirus is a Philadelphia black/thrash metal band formed in 1996, one of the city's longer-running underground metal acts, fusing the speed and riff density of thrash with the cold aggression of black metal.

Bay Area brutalists Spite deal in relentlessly aggressive deathcore built on guttural vocals, punishing breakdowns, and a suffocating atmosphere of nihilistic rage. Vocalist Darius Tehrani's intense delivery and the band's uncompromising sonic violence on albums like 'Nothing Is Beautiful' and 'Dedication to Flesh' have made them a leading force in modern deathcore's heaviest wing. Spite's live shows are notorious for their intensity, regularly turning venues into war zones of swirling pits and crowd surges.

Spiteful Visions is a Minneapolis death metal and deathcore band formed in 2022, incorporating melodic and technical death metal elements alongside deathcore breakdowns for a multifaceted approach to extreme metal.

Spiter is a Philadelphia black metal and punk band formed in 2021, blending the raw antagonism of black metal with the stripped-down aggression of punk in a style reminiscent of black n' roll and black punk hybrids.

Spitkiss is an industrial and groove metal band from San Jose, California, formed in 1994, combining the mechanical textures and electronic elements of industrial metal with the mid-tempo, riff-locked heaviness of groove metal.

Ruthless Death Metal / Grindcore out of Texas.

Spitting Black is a Boston-based band formed in 2006 that fuses the rawness of black metal with the aggression of hardcore punk, delivering a caustic blend of blast beats and d-beat rhythms. Their sound sits in the tradition of the black metal/hardcore crossover that flourished in the northeastern US underground.

Splat is a technical thrash metal band from Lemoyne, Pennsylvania, formed in 2019, playing fast and intricate thrash with an emphasis on complex riffing and tight musicianship.