Claim: The Swedish Confederation of Professional Employees is located in Stockholm and boasts 1.1 million members as of 1931.
Evidence: Stockholm 1.1 million (2018) 1931 
Stockholm The older organisation was the Confederation of Employees (Swedish: De Anställdas Centralorganisation or DACO) founded in 1931 by seven private sector white collar unions representing 20,000 workers. The affiliated trade unions represent about 1.1 million employees.