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 healthcare union, with more than 1.1 million members in the field, including nurses, LPNs, doctors, lab technicians, nursing home workers, and home care workers.
- The largest property services union, with 225,000 members in the building cleaning and security industries, including janitors, security officers, superintendents, maintenance workers, window cleaners, and doormen and women
- The second largest public services union, with more than 1 million local and state government workers, public school employees, bus drivers, and child care providers