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About SIOR

Who We Are

The SOCIETY OF INDUSTRIAL AND OFFICE REALTORS®  is the leading global professional office and industrial real estate association. With more than 3,400 members in 686 cities and 36 countries, SIOR represents today's most knowledgeable, experienced, and successful commercial real estate brokerage specialists.

SIOR has certified thousands of members with the prestigious SIOR designation, a professional symbol of the highest level of knowledge, production, and ethics in the real estate industry. Real estate professionals who have earned the SIOR designation are recognized by corporate real estate executives, commercial real estate brokers, agents, lenders, and other real estate professionals as the most capable and experienced brokerage practitioners in any market.

A professional affiliate of the NATIONAL ASSOCIATION OF REALTORS®, SIOR is dedicated to the practice and maintenance of the highest professional and ethical standards. SIOR maintains a commitment to business and industry by providing outstanding professional services, publications, and educational programs.

The SIOR designation stands unchallenged for excellence in the performance of real estate services, and is universally recognized as the prerequisite in the selection of a commercial real estate broker, agent, or consultant. 

Just the Facts
  • SIOR has more than 3,400 members in 685 cities and 36 countries.
  • SIOR designees can hold the following specialty designations: industrial, office, industrial and office (dual), sales manager, executive manager, or advisory service.
  • SIOR also consists of associate members who include corporate executives, developers, educators, and others involved in the commercial real estate industry.