SEIU

SEIU

SEIU is the fastest-growing union in North America. Focused on uniting workers in three sectors to improve their lives and the services they provide, SEIU is the largest health care union, with more than 1.1 million members in the field; the largest property services union, with 225,000 members in the building cleaning and security industries; and the second largest public services union, with more than 1 million local and state government workers.