Artists like Symphony X

Kamelot is an American power metal band from Tampa, Florida, formed by Thomas Youngblood in 1987. The Norwegian vocalist Roy Khan joined for the album Siége Perilous, and shared songwriting credit with Youngblood until his departure in April 2011. On June 22, 2012, Youngblood announced on their website that their new vocalist would be the Swedish singer Tommy Karevik, who was first featured on Kamelot's album Silverthorn as the main vocalist, co-songwriter, and lyricist.

Threshold are an English progressive metal band formed in Surrey in the late 1980s. The guitarist and producer Karl Groom has been the band's only consistent member.

Ayreon is a musical project by Dutch songwriter, singer, musician and record producer Arjen Anthony Lucassen. Ayreon's music is described as progressive rock, progressive metal and power metal sometimes combined with genres such as folk, electronica, experimental and classical music. The majority of Ayreon's albums are dubbed "rock operas" because the albums contain complex storylines featuring a host of characters, usually with each one being represented by a unique vocalist.

Stratovarius is a Finnish power metal band formed in 1984. They have released sixteen studio albums, six DVDs, and six live albums. The band's line-up has changed many times, with no founding member left since the departure of drummer Tuomo Lassila in 1995, and no member from their early recording days left following guitarist Timo Tolkki's departure in 2008. Currently, the longest standing member is singer Timo Kotipelto, who joined in 1994.

Haken are an English progressive metal band formed in 2007 by multi-instrumentalist Richard Henshall, guitarist Matthew Marshall, and vocalist Ross Jennings. While Henshall, Marshall, and Jennings first had the idea of forming Haken in 2004, they opted to pursue their instruments and songwriting first. Upon recruiting other members three years later, they eventually released the demo Enter the 5th Dimension in 2008, signing with Sensory Records and releasing their first album, Aquarius, in 2010. As of 2026, they have released seven studio albums, two EPs, and two live albums.

Evergrey is a Swedish progressive metal band from Gothenburg, formed in 1993 by guitarist and vocalist Tom S. Englund and guitarist Dan Bronell. The band is known for combining progressive metal and power metal with dark lyrical themes and imagery.

Blind Guardian is a German power metal band formed in 1984 in Krefeld, West Germany. They are often credited as one of the seminal and most influential bands in the power metal and speed metal subgenres. Nine musicians have been part of the band's lineup throughout its history, which currently includes singer Hansi Kürsch, guitarists André Olbrich and Marcus Siepen, and, since 2005, drummer Frederik Ehmke.

Rhapsody of Fire is an Italian symphonic power metal band formed in Trieste by guitarist Luca Turilli and keyboardist Alex Staropoli. The band is widely considered a pioneer of the symphonic power metal subgenre. Originally formed in 1993 as Thundercross, the band released albums under the moniker Rhapsody before changing their name to Rhapsody of Fire in 2006 due to trademark issues. The band is known for their fantasy concept albums for both the Emerald Sword Saga and the Dark Secret Saga.

Sonata Arctica is a Finnish power metal band from the town of Kemi. Created as a hard rock band named Tricky Beans, they later changed to Tricky Means and finally to Sonata Arctica, when they shifted to power metal. The current lineup consists of drummer Tommy Portimo, lead singer Tony Kakko, keyboardist Henrik Klingenberg, guitarist Elias Viljanen and bassist Pasi Kauppinen. All the musicians of the band's history except Portimo also acted as backing vocalists.

Edguy is a German power metal band formed in 1992 in Fulda by students Tobias Sammet, Jens Ludwig, Dominik Storch, and Dirk Sauer. Initially named after their math teacher, the band faced early rejections from record labels but persevered, releasing their unofficial debut album, Savage Poetry, in 1995. They gained wider recognition with their subsequent albums, including Kingdom of Madness (1997) and Vain Glory Opera (1998), featuring guest appearances from notable musicians. Over the years, Edguy has evolved their sound, with Sammet also launching the successful metal opera project Avantasia. The band has released multiple studio albums, including Age of the Joker (2011) and Space Police: Defenders of the Crown (2014), and has engaged in extensive touring.

Avantasia is a German supergroup metal opera project created by Tobias Sammet, vocalist of the band Edguy. It has been characterized as a rock opera, as it features the contributions of various vocalists and musicians and it consists of concept albums. The name is a blend of the words Avalon and fantasia ('fantasy') and describes "a world beyond human imagination".

Helloween is a German power metal band founded in 1984 in Hamburg by members of bands Iron Fist, Gentry, Second Hell and Powerfool. The band has at times been called one of the most influential European heavy metal bands of the 1980s. Its first lineup consisted of singer and guitarist Kai Hansen, bassist Markus Grosskopf, guitarist Michael Weikath and drummer Ingo Schwichtenberg. By the time Hansen left Helloween in 1989 to form Gamma Ray, the band had evolved into a five-piece, with Michael Kiske taking over as lead vocalist. Schwichtenberg and Kiske both parted ways with Helloween in 1993; Schwichtenberg died two years later as the result of suicide. Between then and 2016, there had been numerous line-up changes, leaving Grosskopf and Weikath as the only remaining original members. As a septet, their current lineup features all of the surviving members of the Keeper of the Seven Keys lineup, in addition to the remaining members from the Keeper of the Seven Keys: The Legacy-era.

Demons & Wizards was a power metal band conceived as a side-project by Blind Guardian vocalist Hansi Kürsch and Jon Schaffer, the guitarist for Iced Earth. Schaffer wrote the music and Kürsch wrote the lyrics. The band's line-up during the recording of their first album in 1999 featured Mark Prator, who was the drummer on a few Iced Earth albums, and Jim Morris, who has engineered for Iced Earth before, on lead guitar. The personnel for the second album, released in 2005, included Morris on lead guitar and Bobby Jarzombek on drums. The band released a third studio album, III, in 2020, and disbanded in early 2021.

Caligula's Horse is an Australian progressive metal band from Brisbane, Queensland. The band was formed by Sam Vallen and Jim Grey in early 2011. The current lineup consists of lead vocalist Jim Grey, lead guitarist Sam Vallen, bassist Dale Prinsse and drummer Josh Griffin. Caligula's Horse achieved their first chart success with their 2015 album release Bloom, with it reaching number 16 on the Australian Albums ARIA Chart and number 75 on the overall album chart. The album also reached number 73 on the Australian iTunes chart on 21 October 2015.