Interfear is a thrash metal/hardcore band from Wetteren, Belgium, formed in 2014, welding the velocity of thrash metal to the raw aggression of hardcore punk. The band delivers a relentless hybrid that channels both the Bay Area riff tradition and Belgian hardcore intensity.

Thrash/heavy metal band from Gran Canaria in the Canary Islands, active since 2012. Their sound delivers thrash and heavy metal from Spain's Atlantic archipelago off the African coast.

Interitum are a metalcore and thrash metal band from Salzburg formed in 2012, working in the modern extreme metal space without label backing. The band blends metalcore song structures with thrash-rooted riffing and remains active as an independent underground act.

Thrash metal band from Carballo in Galicia, northwestern Spain, active since 2015. Their sound channels thrash aggression from the Celtic-influenced corner of the Iberian Peninsula.

Internal Conflict are a metalcore and thrash metal band from Leicester, England, formed in 2015. Metal Hammer described their sound as a head-on collision of post-millennial metal, blending brutal and melodic elements across albums like Aporia.

Internal Excavation is a death/thrash metal/crossover band from Budapest, Hungary, active since 2013 and merging death metal's heaviness with thrash's relentless velocity. The project delivers aggressive crossover fury.

Internal Exile is a progressive thrash metal band from Bad Kissingen, Germany, formed in 2026, fusing the complexity of progressive structures with the aggression of thrash metal. The band represents one of the newest entries in the Franconian metal scene.

Internal Perdition is a progressive groove/thrash metal band from Poznań / Murowana Goślina, Poland, active since 2012 and blending thrash metal's velocity with groove metal's rhythmic punch. The project delivers high-energy, riff-driven metal.

Interpol are a thrash metal band from Newark, England, active since 2002. They deliver straightforward thrash metal from the East Midlands.