Who We Are The Arizona North Chapter covers a geographic area extending from Flagstaff in the north down to the Maricopa County line, and from the White Mountains east to the California border on the west. With 490 interior designers, 200 Industry Partners, and 115 student members, Arizona North chapter of ASID is one of the largest ASID Chapters. We represent some of the most influential and trend-setting interior designers in the United States. What We Do The Arizona North Chapter ASID is a regional resource for knowledge sharing, advocacy of interior designers right-to-practice, professional education, and expansion of interior design markets.