The International Interior Design Association (IIDA) is a global network of commercial design professionals committed to advancing the value of interior design. It provides forums for design professionals to demonstrate the impact of the field in terms of health, safety, and well-being for the benefit of the public. With over 15,000 members across 58 countries, IIDA serves commercial interior designers, educators, students, manufacturers, and industry affiliates. Its mission is to elevate the profession through advocacy, professional development, and community cultivation.
History
IIDA was founded in 1994 through the merger of three organizations: the Institute of Business Designers (IBD), the International Society of Interior Designers (ISID), and the Council of Federal Interior Designers (CFID). This unification created a comprehensive association with a shared goal—representing the interests of the interior design profession globally while upholding standards of excellence and integrity, and representing the interests of professionals within the field at a global networking level.
Members
IIDA currently has over 15,000 members and operates through more than 30 chapters, each led by a local Board of Directors. These chapters organize events, deliver CEU-accredited programming, and advocate for regional legislative priorities. Members who reside in areas not served by a chapter can join as International-At-Large members. Members actively participate in mentorships, competitions, and career development opportunities, reflecting IIDA’s commitment to fostering leadership in the profession.
Membership Categories

IIDA offers a range of membership categories to support professionals at various stages of their careers:
- Professional Membership: For interior designers and architects who have completed accredited education, passed the NCIDQ or ARE, and have relevant work experience. This membership grants full access to IIDA benefits and use of the “IIDA” appellation.
- Associate Membership: For design professionals who have completed the required education but have not yet earned certification through NCIDQ.
- Educator Membership: For full-time or adjunct faculty teaching in accredited interior design or architecture programs.
- Student Membership: For current students pursuing a degree in interior design or a related field. Includes access to networking, mentoring, and career development opportunities.
- Industry Membership: For manufacturers, dealers, and service providers seeking access to IIDA’s design community. Companies can enroll multiple representatives under this membership. If you have colleagues at your company who would also like to join, consider exploring the Industry-Corporate Membership option.
- International Membership: For qualified interior design professionals practicing outside of IIDA chapter regions. Also includes a Dual Membership option for those affiliated with organizations such as IDC or BIID. For companies in the A&D industry located outside the U.S., International Corporate Membership offers global connections and increased visibility within the commercial interior design community.
Each membership level offers tailored benefits, from continuing education and publications to exclusive event access and use of the IIDA designation. Visit IIDA’s official website for full membership details, including required qualifications and membership fees.
Member Benefits
Professional Recognition
Members may use the “IIDA” appellation to signify their commitment to the interior design profession and adherence to industry standards. This designation is widely recognized and adds credibility to resumes, business cards, portfolios, and online profiles.
Education & Professional Development

IIDA offers continuing education through IDCEC-approved courses, webinars, and live seminars. Members who successfully complete the NCIDQ or LEED exams are eligible for tuition reimbursement. These resources are available through the IIDA Academy and local chapter programs.
Publications & Resources
Members gain access to exclusive publications, including:
- Perspective: IIDA’s award-winning quarterly journal.
- Interiors & Sources: A leading commercial interiors magazine.
- Design Matters: A biweekly IIDA newsletter.
- Spectrum: A weekly e-newsletter with industry news.
- Online content from Interior Design and In Focus magazines.
Networking & Events

Members can engage through their local chapters or participate in national and international IIDA events, including:
- The IIDA Annual Meeting
- The Revel in Design Gala at NeoCon
- Regional chapter programs and CEU events
Advocacy & Legislation

IIDA advocates for interior design legislation that promotes public health, safety, and welfare. The association supports licensure, registration, and certification to standardize the profession and expand legal recognition.
Exclusive Member Discounts
Members benefit from savings on design-related products, services, and publications. Discount programs support both business and personal use, with special pricing available for event participation, advertising, and design tools.
Visit the official IIDA website for a complete and updated list of member benefits.
The IIDA Foundation

The IIDA Foundation is a 501(c)(3) nonprofit organization committed to advancing interior design through education, research, and community engagement. It supports a range of initiatives that help cultivate the next generation of design professionals while promoting equity and innovation in the industry.
Key initiatives include:
- Design Your World: An educational program introducing high school students to career paths in interior design, with a focus on diversity and inclusion.
- IA Interior Architects Diversity in Design Scholarship: A partnership with IA Interior Architects that provides financial support to minority students pursuing interior design or architecture degrees.
- Student Mentoring Program: An annual initiative that pairs students with practicing professionals, offering real-world exposure and mentorship.
Learn more about these programs that reflect the Foundation’s commitment to building a more inclusive and future-forward design industry.
Key Takeaways for Designers

- IIDA is tailored for professionals in commercial interior design.
- Membership conveys credibility through the use of the “IIDA” appellation.
- Educational benefits include CEUs, exam reimbursements, and the IIDA Academy.
- Networking is supported through local chapters and high-profile industry events.
- IIDA leads in advocating for licensure and legal recognition of the profession.
- Emerging professionals and students receive robust support.
- Member involvement varies by region—check your local chapter’s activity before joining.
Is IIDA the Right Fit for Your Design Career?
If you’re a commercial interior designer—or aspiring to be one—joining IIDA can be a powerful move for your career. The association offers a strong network of peers, access to educational resources, industry recognition, and opportunities to showcase your work nationally and internationally. It’s especially valuable if you’re looking to stay current on trends, elevate your professional credibility, or get involved in advocacy for the industry. For students and emerging designers, mentorship and support can be game-changers.
That said, membership isn’t a must for everyone. If your focus is residential design or you’re in a region with limited IIDA chapter activity, you may not reap the full benefits. The annual fees can also feel steep if you’re not ready to participate actively. Bottom line? IIDA is worth it if you’re serious about growing in the commercial design space and want to be surrounded by equally driven professionals.
Ultimately, joining IIDA is an investment in your professional growth, and like any investment, its value depends on how much you put into it. For designers committed to advancing in the commercial space, it can open doors, spark connections, and solidify your place in the industry.