Employees
Labor Organizations
- AFL-CIO - American Federation of Labor - Congress of Industrial Organizations
- BLET - Brotherhood of Locomotive Engineers
- BMWE - Brotherhood of Maintenance of Way Employees
- BRS - Brotherhood of Railroad Signalmen
- IBBB - International Brotherhood of Boilermakers
- IBEW - International Brotherhood of Electrical Workers
- SEIU/NCF&O - Service Employees International
- SMWIA - Sheet Metal Workers International Association
- TCU - Transportation Communications International Union
- United Transportation Union
