The International Space Environment Service (ISES) held its annual meeting in Broomfield, Colo. on 3 April 2005, just prior to the start of the Space Environment Center's Space Weather Week conference. The purpose of the ISES is to encourage and facilitate near-real-time international monitoring and prediction of the space environment by: the rapid exchange of space environment information; the standardization of the methodology for space environment observations and data reduction; the uniform publication of observations and statistics in an accepted format; and the application of standardized space environment products and services to assist users in reducing the impact of space weather on activities of human interest.