Organizations based in Seattle, Washington

The Colacurcio Organization, also known as the Colacurcio crime family, was a criminal organization based in Seattle, Washington, United States.

Art of Movement (AOM) is a Seattle-based b-boy crew founded in 2002 by brothers Junior and Tony Orduna. The crew received attention due to member Jay Park's popularity as a singer and rapper. Cha Cha Malone is a producer and composer, and works closely with Jay Park, and Dial Tone won R-16 Korea in 2012 with Massive Monkees, another Seattle-based b-boy crew. The crew has appeared on numerous nationally-broadcast TV shows in South Korea, performed worldwide, and appeared in many music videos, exposing the b-boy culture to a wide variety of people.

American Marriage Ministries is a non-denominational Internet church based in Seattle. The church was founded by Glen Yoshioka in 2009 and ordains and trains people to officiate at weddings. The church is a secular non-denominational organization that does not promote any specific religious ideologies, instead allowing its ministers to define their own practice and faith. This allows ceremonies to be tailored to the beliefs of the couple. The church ordained Canadian singer Carly Rae Jepsen in 2017. The church had operated entirely online until June 2019, when its ministers began performing in-person ordinations in response to Tennessee passing a law disallowing ministers ordained online from solemnizing weddings in the state. According to Executive Director Lewis King, by June 2017 the church has ordained more than 715,000 people in the United States, including over 13,400 active ministers in Tennessee. The church performed mass ordinations in a number of cities in Tennessee, with the majority of attendees being those who had already been ordained online but need to update their status to comply with the new law.

Perspectives of New Music (PNM) is a peer-reviewed academic journal specializing in music theory and analysis. It was established in 1962 by Arthur Berger and Benjamin Boretz (who were its initial editors-in-chief).

Marguerite Casey Foundation is a private, independent grantmaking foundation located in Seattle, Washington. The foundation (originally called Casey Family Grants Program) was created in 2001 by Casey Family Programs. Marguerite Casey Foundation supports leaders, scholars and initiatives focused on shifting the balance of power in society — building power for communities that continue to be excluded from shaping how society works and from sharing in its rewards and freedoms.

Seattle Mountain Rescue (SMR) is an all volunteer non-profit mountain rescue team operating out of King County, Washington. SMR is part of the King County Search & Rescue Association (KCSARA) and is also part of the Mountain Rescue Association, frequently working with other King County SAR teams as well as neighboring mountain rescue teams, including Everett Mountain Rescue, Tacoma Mountain Rescue, and Olympic Mountain Rescue.

The National Bureau of Asian Research (NBR) is an American non-profit research institution based in Seattle, Washington, with a branch office in Washington, D.C.

Legacy House is a non-profit assisted living facility managed by the Seattle Chinatown International District Public Development Association (SCIDpda). It was built in 1998 in response to an increasing need for affordable, cultural diverse services in the neighborhood of the Seattle China-International District to accommodate its senior population. Legacy House is the only assisted living facility in Seattle that emphasizes serving one hundred percent Asian and Pacific Islander clientele. Their staff speaks over 15 Asian languages in order to help its residents communicate better and services low-income members of Seattle's Asian communities exclusively. Many of their members have been pioneers of the Seattle Asian-American community.

The Seattle Camera Club (SCC) was an organization of photographers active in Seattle, Washington, during the 1920s. It was founded in 1924 by Japanese immigrants and thrived for the next five years. The SCC was the only Japanese American photography club to include both Caucasians and women photographers as members, and because of their inclusivity their members were among the most exhibited photographers in the world at that time.

The Allen Institute for AI (abbreviated AI2) is a 501(c)3 non-profit research institute founded by late Microsoft co-founder and philanthropist Paul Allen in 2014. The institute seeks to conduct high-impact AI research and engineering in service of the common good. Oren Etzioni was appointed by Paul Allen in September 2013 to direct the research at the institute. After leading the organization for nine years, Oren Etzioni stepped down from his role as CEO on September 30, 2022. He was replaced in an interim capacity by the leading researcher of the company's Aristo project, Peter Clark. On June 20, 2023, AI2 announced Ali Farhadi as its next CEO starting July 31, 2023. The company's board formed a search committee for a new CEO. AI2 also has an active office in Tel Aviv, Israel.