Main Page | See live article | Alphabetical index SIOR is a designation bestowed by The Society of Industrial and Office REALTORS to commercial real estate brokers. To achive the SIOR designation, members must: Have five years experience Maintain a certain dollar volume of transactions (the exact amount varies from market to market) "Maintain high ethical standards" Complete an education requirement SIOR is an attractive designation. Most career commercial real estate brokers obtain it and the CCIM designation, its perceived equivalent. External links The Society of Industrial and Office REALTORS Complete membership requirements This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.