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Society of Industrial and Office REALTORS®

SIOR awards the SIOR (Specialist, Industrial & Office Real Estate) designation to brokerage specialists who meet its strict experience, transaction, education, and ethical standards. Recipients of this designation are recognized within the commercial brokerage industry as the most experienced and capable commercial real estate practitioners. One of the leading commercial and industrial real estate associations, SIOR has 3,200 members-2,800 of whom hold the designation-located in more than 590 cities in 25 countries. Contact SIOR headquarters at 202-449-8200 and at