American Postal Worker Union

American Postal Worker Union is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Halls Auditoriums & Meeting Rooms
• Labor Organizations

North American Industry Classification System (NAICS) Categories:

• All Other Business Support Services > Convention Trade Show & Promotional Services
• Labor Unions And Similar Labor Organizations

Standard Industry Classification (SIC) Categories:

• Business Services, Nec > Convention Trade Show & Promotional Services
• Labor Unions & Similar Labor Organizations