| Conference Chair | Mitsuhisa SATO (University of Tsukuba) |
| Conference Vice-Chair | Atsuhiro GOTO (NTT) |
| General Chair | Daisuke TAKAHASHI (University of Tsukuba) |
| Program Chair | Masahiro YASUGI (Kyoto University) |
| Program Vice-Chair (full papers) | Kenji KONO (Keio University) |
| Program Vice-Chair (poster papers) | Hidemoto NAKADA (AIST/Tokyo Institute of Technology) |
| Grid Challenge 2005 Chair | Kenjiro TAURA (The University of Tokyo) |
| Tutorial Chair | Toshikazu ICHIKAWA (NTT) |
| Local Arrangement Chair | Shoji ITO (University of Tsukuba) |
| Local Arrangement Vice-Chair | Hironori NAKAJO (Tokyo University of Agriculture and Technology) |
| Treasurer Chair | Kenji KISE (The University of Electro-Communications) |
| Publicity Chair | Yoshihiro Oyama (The University of Tokyo) |
