The Carles Sierra Artificial Intelligence Research Institute is a premier AI research group in Spain with 57 personnel working across three departments - Logic, Reasoning and Search; Learning Systems & Case-Based Reasoning; and Multi-Agent Systems. The institute has received over 9 million euros in funding for 42 research projects since 2000 and engages in technology transfer through various spin-off companies and industrial contracts. The research focuses on areas such as fuzzy logic, case-based reasoning, machine learning, multi-agent systems, and applications in e-commerce, robotics, and music generation.