| National Railway Labor Conference | Related tax-exempt org | National repr | VA | 362491193 |
| RR EE's Nat'l Early Rtrmt Major Med Plan | Related tax-exempt org | Employee Welf | VA | 521184357 |
| The Railroad EE's National Dental Plan | Related tax-exempt org | Employee Welf | VA | 521102730 |
| Maint of Way EE's Supp Sick Benefit Plan | Related tax-exempt org | Employee Welf | VA | 521162945 |
| The RR EE's National Health FSA Plan | Related tax-exempt org | Employee Welf | VA | 800868908 |
| National Carrier's Conference Committee | Related tax-exempt org | Plan sponsor | VA | 521036399 |
| Alton & Southern | Related taxable corporation/trust | CONTR Employer | — | — |
| BELT Railway Company of Chicago | Related taxable corporation/trust | CONTR Employer | — | — |
| BNSF Railway | Related taxable corporation/trust | CONTR Employer | — | — |
| Brotherhood of Railway Signalmen | Related taxable corporation/trust | CONTR Employer | — | — |
| Canton Railroad Company | Related taxable corporation/trust | CONTR Employer | — | — |
| Chicago South Shore&south BEND Railroad | Related taxable corporation/trust | CONTR Employer | — | — |
| Colorado and Wyoming Railway | Related taxable corporation/trust | CONTR Employer | — | — |
| Conrail Corporation | Related taxable corporation/trust | CONTR Employer | — | — |
| CSX Transporation | Related taxable corporation/trust | CONTR Employer | — | — |
| Delaware and Hudson Railway Company | Related taxable corporation/trust | CONTR Employer | — | — |
| Idaho & Sedalia (rcl Wiring) | Related taxable corporation/trust | CONTR Employer | — | — |
| Illinois Central Railroad | Related taxable corporation/trust | CONTR Employer | — | — |
| Indiana Harbor BELT Railroad Company | Related taxable corporation/trust | CONTR Employer | — | — |
| Int'l Association of Machinists & Aerosp | Related taxable corporation/trust | CONTR Employer | — | — |
| Kansas City Southern Railroad Company | Related taxable corporation/trust | CONTR Employer | — | — |
| LAKE Superior & Ishpeming Railroad CO | Related taxable corporation/trust | CONTR Employer | — | — |
| National Railroad Passenger Corporation | Related taxable corporation/trust | CONTR Employer | — | — |
| New Orleans Public BELT Railroad | Related taxable corporation/trust | CONTR Employer | — | — |
| New YORK Susquehanna and Western RR | Related taxable corporation/trust | CONTR Employer | — | — |