SEIU Headquarters



1800 Massachusetts Avenue NW, Washington, DC 20036

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Link Icon SEIU Headquarters

(202) 730-7000

Renown as the nation’s most diverse union, the Service Employees International Union (SEIU), which is headquartered in Washington DC,¬† is comprised of some 2.1 million members representing the interests of workers employed in the industries of healthcare, public services, and property services.