International Union, UAW | 11,876 followers on LinkedIn. The International Union, United Automobile, Aerospace and Agricultural Implement Workers of America (UAW) | The International Union, United Automobile, Aerospace and Agricultural Implement Workers of America (UAW) is one of the largest and most diverse unions in North America, with members in virtually every sector of the economy. The UAW has more than 400,000 active members and more than 580,000 retired members in the United States, Canada and Puerto Rico. There are more than 600 local unions in the UAW.