Participants at the Ninth HEW were:
- David Alba
- Peter Andrews
- David Begun
- Michel Brunet
- Eric Delson
- Mikael Fortelius
- Kate Goodenberger
- Terry Harrison
- Andrew Hill
- Francis Kirera
- Yutaka Kunimatsu
- Louise Leakey
- Meave Leakey
- Richard Leakey
- Laura MacLatchey
- Kyalo Manthi
- Lawrence Martin
- Monte McCrossin
- Kieran McNulty
- Ellen Miller
- Masato Nakatsukasa
- Mariam Nargolwalla
- Brian Richmond
- Mike Rose
- James Rossie
- Gen Suwa
- Carol Ward