The Service Employees International Union (SEIU) is based in Washington, DC, and includes of hundreds of local unions across North America, including SEIU Wisconsin in Madison, WI.
History in the Headlines
What It Means to be an SEIU Member
Union members are expected to abide by the rules and regulations of SEIU Wisconsin’s bylaws and the Service Employees International Union’s constitution.
At least some Service Employees International Union members aren't happy with the union’s representation. 4,773 unfair labor practice charges have been filed against the SEIU since 2016, according to Bloomberg Law.
Service Employees International Union Financials
In 2025, the Service Employees International Union collected $329,672,295 in total receipts. The chart below shows how the Service Employees International Union spent more than $329 million, according to its latest LM-2 report.
Service Employees International Union Work Stoppages
Since 2016, the Service Employees International Union has been involved in 411 work stoppages affecting over 400,000 workers and their families, according to Bloomberg Law.