The Northwest Multiple Listing Service (NWMLS) is a member-owned, not-for-profit organization that facilitates cooperation among its member real estate firms. The organization was formed when four innovative multiple listing services joined forces to streamline services for their clients. The organization revolutionized the industry by centralizing real estate listing data and being the first MLS in the country to put this data online. 

Originally called the Puget Sound Multiple Listing Association, the name changed in 1996 to Northwest Multiple Listing Service to reflect the growing geographic area served. Today, NWMLS is one of the leading multiple listing services in the country, providing member services to more than 30,000 real estate brokers throughout the Northwest.  

Core Philosophies

Service: Provide high-impact products, training and support, and customer service. Facilitate cooperation among members.

Integrity: Prioritize integrity, honesty, and transparency in all aspects of its business, including governance, decision-making, compliance, member dispute resolution, and NWMLS’s data.

Communication: Provide clear, timely, accurate, consistent, and relevant information to members, both responding to and anticipating member’s needs and interests.

Leadership: Be a leader within the real estate industry, both locally and nationally, cooperating with other organizations and industry groups to influence and advance the real estate industry in a progressive, responsible, and positive fashion.

Inclusion: Foster a culture of inclusion, diversity, equity, and accessibility.


NWMLS is the most valued service for its member firms by providing comprehensive, timely, and accurate real estate information, related tools, and customer support.


NWMLS benefits the community in which NWMLS acts by fostering an environment for members to cooperate and maintain ethical relationships among themselves and with the public. Further, NWMLS will at all times act to improve the standing of real estate brokerage in the community and better serve the public in all real estate transactions.

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