Effective period / Period of releases: 2013 - 2023

Members: Oren Ambarchi, Per 'Texas' Johansson, Goran Kajfes, Andreas Berthling, Dror Feiler, Mats Lindström, Johan Berthling, Joe Williamson, Mats Gustafsson, Sören Runolf, Martin Hederos, Per Åke Holmlander, Dan Berglund, Jonas Kullhammar, Magnus Broo, Fredrik Ljungkvist, Kjell Nordeson, Sten Sandell, Raymond Strid, Lotte Anker, Reine Fiske, David Sandström, Martin Küchen, David Stackenäs, Lars-Göran Ulander, Leo Svensson, Tomas Hallonsten, Johan Holmegard, Joachim Nordwall, Hild Sofie Tafjord, Christer Bothén, Thomas Gartz, Will Guthrie, Emil Strandberg, Andreas Söderström, Simon Ohlsson, Emil Svanängen, Per "Ruskträsk" Johansson, Maria Bertel, Katt Hernandez, Tobias Wiklund, Mariam Wallentin, Andreas Werliin, Joel Grip, Anna Lindal, Torbjörn Zetterberg, Alberto Pinton, Mette Rasmussen, Mats Äleklint, Niklas Barnö, Sofia Jernberg, Anna Högberg, Mads Forsby, Finn Loxbo, Heiða Karine Jóhannesdóttir Mobeck, Alexander Zethson, Susana Santos Silva, Elin Larsson, Edvin Nahlin, Julien Desprez, Josefin Runsteen, Daniel Gahrton, Elsa Bergman, Isak Hedtjärn, Julia Strzalek, Andreas Hoem Røysum, Niklas Fite, Signe Emmeluth, Juan Romero (8), Amalie Stalheim

Scandinavian free jazz/experimental/psychedelic/noise/free improv ensemble with a rotating cast, active since January 2012 and exclusively signed by a Norwegian label Rune Grammofon. Fire! Orchestra was formed by core members of Fire! supergroup Mats Gustafsson, Johan Berthling and Andreas Werliin and debuted at the Fylkingen concert venue in Stockholm, Sweden. This concert was released as the orchestra's first album, Exit! CD/LP, in January 2013.

Between 2014 and 2016, the ensemble produced two more studio albums and one live release. In the fall of 2017, Fire! Orchestra began rehearsing and researching a compositional structure with a brand-new acoustic line-up that emphasized strings and clarinets. In September 2018, Fire! Orchestra performed at Muzeum Inzynierii Miejskiej, Kraków as part of Sacrum Profanum Festival, invited by a renowned Polish conductor and composer Krzysztof Penderecki. The concert was subsequently released on Actions CD/LP in February 2020.

In January 2019, the orchestra recorded a new album at Atlantis Studio in Stockholm, released as Arrival CD/2xLP by Rune Grammofon in May of the same year.

Original line-up (2012)
Mats Gustafsson — tenor sax, live electronics, conduction
Anna Högberg — alto sax
Fredrik Ljungkvist — baritone sax, clarinet
Christer Bothén — bass clarinet, guimbri
Jonas Kullhammar — bass sax
Elin Larsson — tenor sax
Mats Äleklint — trombone
Emil Strandberg — trumpet
Magnus Broo — trumpet
Niklas Barnö — trumpet
Per Åke Holmlander — tuba
Mariam Wallentin — voice
Sofia Jernberg — voice
Emil Svanängen — voice, guitar
Andreas Söderström — guitar
David Stackenäs — guitar
Sören Runolf — guitar
Joachim Nordwall — electronics
Tomas Hallonsten — organ
Sten Sandell — piano, electronics
Johan Berthling — electric bass
Dan Berglund — bass
Joe Williamson — bass
Joel Grip — bass
Andreas Werliin — drums
Johan Holmegard — drums
Raymond Strid — drums
Thomas "Mera" Gartz — drums

Arrival! "acoustic" line-up (2017)
Mats Gustafsson — baritone sax
Per 'Texas' Johansson — contrabass and bass clarinets
Christer Bothén — contrabass and bass clarinets
Isak Hedtjärn — Bb clarinet
Susana Santos Silva — trumpet
Mariam Wallentin — voice
Sofia Jernberg — voice
Anna Lindal — violin
Josefin Runsteen — violin
Katt Hernandez — violin
Leo Svensson — cello
Alexander Zethson — piano
Mikael Werliin — sound
Johan Berthling — basses
Andreas Werliin — drums

Live line-up (September 2018)
Mats Gustafsson — baritone sax and conduction
Per 'Texas' Johansson — tenor sax, clarinet and flute
Anna Högberg — alto sax
Christer Bothén — bass clarinet
Goran Kajfes — trumpet
Niklas Barnö — trumpet
Susana Santos Silva — trumpet
Per Åke Holmlander — tuba
Maria Bertel — trombone
Alexander Zethson — Hammond organ
Reine Fiske — guitar
Elsa Bergman — double bass
Torbjörn Zetterberg — electric bass
Andreas Werliin — drums

Céline Grangey — live sound