International Design Association


The International Interior Design Association (IIDA) is the Commercial Interior Design Association with a global reach. We support design professionals, industry affiliates, educators, students, firms and their clients through our network of 15,000+ members across 58 countries. We 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.


IIDA was founded in 1994 as the result of a merger of the Institute of Business Designers (IBD); the International Society of Interior Designers (ISID); and the Council of Federal Interior Designers (CFID). The goal of the merger was to create an international association with a united mission that would represent Interior Designers worldwide. Since that date, IIDA has worked to convene communities of Interior Designers across regions and specialties representing the interests for the entire community.

Expect More

IIDA understands that Membership is personal, meaningful and shapes you as an individual and practitioner throughout your career, adapting with your needs. IIDA advances the profession of Interior Design through the progressive cultivation of innovative leadership and by constantly advocating for exceptional design. We work with you and for you to shape your future in design.

You should expect no less

Grow More

Great Design knows no boundaries. Nor do great Designers. IIDA honors the rich history and legacy of the profession. We are inspired by the process of getting to the Future of Design. Whatever that journey may uncover. Combining realism and vision, IIDA defines opportunities for our Members to maximize their professionalism.

IIDA is a catalyst for your professional development. Take advantage of IIDA opportunities to hone your leadership skills by participating at the Chapter or international level. Whether your interest is in a serious commitment or a few hours supporting an event committee, IIDA can provide you with leadership opportunities outside of your firm.

Practice More

IIDA tracks and supports legislation that raises the bar for the profession and protects your right to practice. It’s important to you and it’s important to us. You know the field is always changing, and legislation will shape the future. IIDA can beyour voice through GRAction and GRAlerts, and local newsletters. IIDA can be your partner and voice for your involvement with your State’s coalition.