About Us


The Society of Industrial & Office Realtors® is the leading professional commercial and industrial real estate association.

SIOR has certified more than 3,100 of its members worldwide 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. SIOR designees can hold the following specialty designations: industrial, office, sales manager, executive manager, or advisory service.

SIOR also includes associate members who include corporate executives, developers, educators, and other involved in the commercial real estate industry.

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 numbers speak for themselves. Last year SIOR members reported an average per person dollar volume of more than US $33.5 million worth of property leased or sold. Cumulative dollar volume for all SIOR members was $85.6 billion of property leased or sold.

The Northern California Chapter of SIOR is made up of over 150 of the very best brokers in markets, which include the San Joaquin Valley, the Greater East Bay, Silicon Valley, Sonoma County, the Sacramento Valley, Marin County, Reno and San Francisco. SIOR brokers are a significant influence in the sales and leasing of commercial properties in all of these markets and represent the highest degree of professional integrity and ethics.

For more information on SIOR, visit our national website at: www.sior.com