Porcupine Tree has five people listed as members according to MusicBrainz, retrieved 2026-10-08. This list reflects the database’s current record of band membership, including both current and former members as documented there.
Current Members
- Steven Wilson – not listed, 1987–present
- Richard Barbieri – not listed, 1993–present
- Gavin Harrison – not listed, 2002–present
Former Members
- Chris Maitland – not listed, 1993–2002
- Colin Edwin – not listed, 1993–2010
Original Line-up
- Steven Wilson
Line-up Timeline
| Member | Role | Years |
|---|---|---|
| Steven Wilson | not listed | 1987–present |
| Chris Maitland | not listed | 1993–2002 |
| Colin Edwin | not listed | 1993–2010 |
| Richard Barbieri | not listed | 1993–present |
| Gavin Harrison | not listed | 2002–present |
Line-ups and Albums
Porcupine Tree’s studio albums were released between 1991 and 2022. Based on the member years, the line-ups for each album year according to MusicBrainz are as follows:
- The Nostalgia Factory (1991): Steven Wilson (1987–present) only
- On the Sunday of Life… (1992): Steven Wilson only
- Up the Downstair (1993): Steven Wilson, Chris Maitland, Colin Edwin, Richard Barbieri (all active in 1993)
- The Sky Moves Sideways (1994): Wilson, Maitland, Edwin, Barbieri
- Signify (1996): Wilson, Maitland, Edwin, Barbieri
- Stupid Dream (1999): Wilson, Maitland, Edwin, Barbieri
- Lightbulb Sun (2000): Wilson, Maitland, Edwin, Barbieri
- In Absentia (2002): Wilson, Edwin, Barbieri, Gavin Harrison (joined 2002), Chris Maitland until 2002 (year overlaps)
- Deadwing (2005): Wilson, Edwin, Barbieri, Harrison
- Fear of a Blank Planet (2007): Wilson, Edwin, Barbieri, Harrison
- The Incident (2009): Wilson, Edwin, Barbieri, Harrison
- Closure / Continuation (2022): Wilson, Barbieri, Harrison
Note that Chris Maitland’s membership ended in 2002, and Colin Edwin’s ended in 2010, so they are not part of the band for albums released after those years. Steven Wilson, Richard Barbieri, and Gavin Harrison remain current members as of the latest data.
How This List Was Compiled
The list of Porcupine Tree members is based solely on MusicBrainz ‘member of band’ relations retrieved on 2026-10-08. Only members with such relations are included. Touring or session musicians, collaborators, and other contributors are not listed, as they are not part of the core membership data in MusicBrainz. This ensures the list reflects the database’s official record without additions or omissions beyond that source.
Frequently Asked Questions
- How many members of Porcupine Tree are listed?
- Five members are listed in total according to MusicBrainz.
- Who are listed without an end date?
- Steven Wilson, Richard Barbieri, and Gavin Harrison are listed without an end date, indicating they are current members.
- Who does MusicBrainz mark as original members?
- Only Steven Wilson is marked as an original member.
- Where does the data come from?
- The data comes from MusicBrainz, with retrieval date 2026-10-08.
Final Thoughts
Porcupine Tree’s membership data as recorded by MusicBrainz provides a clear view of the band’s personnel over the years. This factual account helps fans and researchers understand the band’s evolving line-up without speculation.
For those seeking detailed information on Porcupine Tree’s members, referencing MusicBrainz offers an accurate and up-to-date resource.
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