Membership: Requirements Requirements SIOR Designation- Active Membership The SIOR designation is a personal achievement for those individuals who are highly qualified commercial real estate practitioners with a strong transactional history in brokerage, fee-based services, or executive management. The SIOR designation is granted in one of six specialist categories: Advisory Services Specialist Executive Specialist Industrial Specialist Industrial & Office Dual Specialist Office Specialist Sales Management Specialist     Please select  this link for detailed designation category definitions, requirements, and a review of the application process. Associate Status -Company Membership Organizations with a vital interest in corporate real estate services and industrial or office development comprise SIOR's Associate membership.  Qualified individuals from the Associate member organization represent that organization in the affairs of SIOR. Associate status is granted in one of four categories: Corporate Associate Developer Associate Educator Associate General Associate Please select  this link for detailed designation category definitions, requirements, and a review of the application process Retired Status Those who held the SIOR designation may qualify for Retired status.  Please click here for details. Reinsatement of Membership Reinstatement may be an option.  Please click here for details.