United Food and Commercial Workers Union Local 555 represents around 18,000 workers in Oregon and Southwestern Washington. Membership is comprised of workers in retail, manufacturing, health care and many other industries and is the largest private sector labor union in Oregon.Local 555 has a rich history dating back to 1936. The local is chartered by the UFCW International Union comprised of over 1.3 million workers across the United States and the World.