Dear Colleague: It is a pleasure to announce that the 7th International Conference on Composites Testing and Model Identification (CompTest 2015) will be held at the IMDEA Materials Institute (Getafe, Madrid) in April 8-10, 2015. This conference will be a meeting point where reputed scientists and engineers working in testing, characterization, modelling and simulation of structural composites will share their ideas in a common discussion framework. Model identification and validation with advanced experimental techniques as well as recent constitutive developments for novel structural composites are welcome for the promotion of an enriched technical discussion. All composite materials will be addressed (polymer, cement, ceramic, metallic matrices, carbon, glass, boron, natural fibres, wood). Apart from the large general conferences on composite materials and structures (ICCM, ECCM, ICCS), there are very few occasions to exchange information on the topic of composites testing and model identification. The single session format of the conference is to provide a unique opportunity for an informal and focused scientific exchange on the topic.