The Society for Design Administration (SDA) is a nonprofit organization comprised of management and administrative persons en ... gaged in professional administrative services to architecture/engineering/ construction (A/E/C) firms and related disciplines. Our purpose is to advance management and administrative professionals in the A/E/C industry through education, networking, leadership, and resources. Members of SDA include anyone who is employed as managerial or administrative personnel in the A/E/C industry or anyone whose products or services support the industry. (Examples: Office manager, controller, marketing coordinator, CFO, receptionist, project administrator) read more