1. Massive Attack
- Genre: Trip hop, Bristol sound
- Origin: Bristol, England
- Active: 1988-present
2. Tricky
- Genre: Trip hop, hip hop, alternative rock
- Origin: Bristol, England
- Active: 1991-present
3. Moby
- Genre: Electronica, ambient, techno, alternative rock
- Origin: New York City, United States
- Active: 1989-present
4. DJ Shadow
- Genre: Instrumental hip hop, trip hop, downtempo, turntablism
- Origin: Davis, California, United States
- Active: 1989-present
5. Thievery Corporation
- Genre: Trip hop, dub, reggae, jazz
- Origin: Washington, D.C., United States
- Active: 1995-present
6. Zero 7
- Genre: Electronic music, downtempo, trip hop, nu jazz
- Origin: Bristol, England
- Active: 1997-present
7. Morcheeba
- Genre: Trip hop, electronica, alternative rock
- Origin: London, England
- Active: 1995-present
8. Beth Orton
- Genre: Folktronica, electronica, singer-songwriter
- Origin: East Dereham, England
- Active: 1991-present
9. Hooverphonic
- Genre: Trip hop, electronic rock, alternative rock
- Origin: Sint-Niklaas, Belgium
- Active: 1995-present
10. Röyksopp
- Genre: Electronica, techno, house, trip hop
- Origin: Tromsø, Norway
- Active: 1998-present
These bands may have influences Portishead or share similar musical or aesthetic qualities, including an atmospheric and ethereal sound, the use of samples, and electronic experimentation. However, please note that music is subjective and personal preferences may vary.