The Society of Industrial
and Office REALTORS® is the leading professional commercial and industrial
real estate association. With more than 2,800 members in 450 cities in
20 countries, the Society represents today's most knowledgeable, experienced,
and successful commercial real estate brokerage specialists. The Society
certifies its members with the prestigious SIOR (specialist, industrial
and office real estate) designation, a professional symbol of the highest
level of knowledge, production, and ethics in the real estate industry.
Real estate professionals who hold the SIOR designation are recognized
by corporate real estate executives, commercial real estate brokers and
agents, lenders, and other real estate professionals as the most experienced
and capable practitioners in any market. A professional affiliate of the
National Association of REALTORS®, the Society is dedicated to the
practice and maintenance of the highest professional and ethical standards.
The Society maintains a commitment to business and industry by providing
outstanding professional services, publications, and educational programs.
In 2006, our President & CEO, Andrew B. Zezas, SIOR, was appointed
national Chairman of the SIOR Tenant Representation Specialty Practice
Board (SPB). His role will be to build the SPB into a driving national
force of commercial real estate brokers whose primary service is
a specialization in representing the interests of corporations that
seek to acquire or dispose of real estate.
SIOR Documents
(PDF format)
Society of Industrial and Office Realtors
(SIOR) 
