International Interior Design Association (IIDA)The International Interior Design Association (IIDA) is the Commercial Interior Design Association with a global reach that supports design professionals, industry affiliates, educators, students, firms and their clients through a network of 15,000+ members across 58 countries. They advocate for advancements in education, design excellence, legislation, leadership, accreditation, and community outreach to increase the value and understanding of Interior Design as a profession that enhances business value and positively impacts the health and well-being of people’s lives every day.