Ten Onder, meaning 'go under' in Dutch, practice depressive black metal from the Gelderland/Utrecht region, channeling overwhelming despair through lo-fi atmospherics and anguished vocals since 2013. Their music inhabits the genre's most emotionally desolate territory.

Ten Ton Slug is a sludge and groove metal band from Galway, Ireland, formed in 2015. Their 2024 debut album Colossal Oppressor features Karl Willetts of Bolt Thrower fame, showcasing their massive, riff-laden sound honed through years sharing stages with Crowbar and Corrosion of Conformity.

Ten Tonne Dozer is a southern/groove metal band from the Shetland Islands, active since 2007, known for their ferocious live shows featuring 'an awe-inspiring mix of blood, sweat, broken strings, and sheep skulls.' Winners of the 2012 Scottish Alternative Music Awards for Best Metal, they bring crushing groove metal from Britain's most remote inhabited archipelago.

French metalcore outfit TEN56 (formerly TEN56.) bring a punishing, industrial-tinged heaviness to the European metal scene, combining crushing breakdowns, glitchy electronic elements, and vocalist Alex Guitton's venomous delivery into a modern, aggressive package. Their sound draws from the heavier end of the nu-metalcore spectrum, incorporating elements of deathcore and industrial metal into songs built for maximum impact. TEN56's rising profile on the European festival circuit reflects the growing appetite for genre-blending extremity in modern heavy music.

Heavy/thrash metal trio from the Zürich area of Switzerland, delivering old-school riff-driven aggression. Their discography includes the Demo 2020, Stormreaper, and the Süddenly... release.

Tendril is a death/black metal band from England. Their music merges the guttural intensity of death metal with the atmospheric darkness of black metal, carving out a space in the British extreme metal underground.

Power metal band from Zug, Switzerland, forging melodic and driving compositions. Active in the Swiss metal underground, they maintain an energetic presence on the local heavy metal circuit.

Thrash metal band from Steinen in the canton of Schwyz, Switzerland. Part of the Swiss thrash scene, they deliver aggressive riff-based metal from the heart of central Switzerland.

Tenebres from Drancy in the Paris suburbs deliver heavy and speed metal under the French word for 'darkness' since 2016. A decade of shadowy compositions from the Seine-Saint-Denis department has produced energetic, classically rooted metal.