- A & K Railroad Materials Inc
- AAA Canvas & Awning Co
- ABC Rail Products Corp
- ABC-Naco Inc
- Adams & Westlake LTD
- Aero Transportation Prods Inc
- Alabama Rail Car
- Alameda Corridor Trnsprtn Auth
- Alameda Corridor Trnsprtn Auth
- Alliance Casting
- Alpha Crossings & Rr PRODUCTS
- Alstom Signaling Inc
- American Allied Railway Equip
- American Hydraulics Inc
- American Railway Products
- Anchor Brake Shoe Co
- B & E Industries
- Backshop Enterprises
- Ballast Tools Inc
- Birmingham Rail & Locomotive
- Brenco Inc
- Butler County Water Cond
- Butler Custom Catering
- Butler Custom Wash & Detail
- Butler Deck Hockey
- Butler Dental Assoc
- Butler Development Inc
- Butler Diagnostic Ctr
- Butler Diaper Svc
- Butler Did It
- Butler Did It Cleaning Svc
- Butler Disposal
- Butler District Attorneys
- Butler Dog Training Assoc
- Butler Eagle
- Butler Elks Lodge
- Butler Emergency Physicians
- Butler Employees Assn
- Butler Engineering & Contr
- Butler Enterprises Inc
- Butler Excavating
- Butler Excavating
- Butler Eye Care
- Butler Eye Phys & Surgeons
- Butler Eye Physicians & Srgns
- Butler Fabricating
- Butler Fair & Agricultural
- Caf USA Inc
- Cardwell Westinghouse Co
- Cardwell Westinghouse Co
- Cattco USA Inc
- CEIT Corp
- Central Sales & Svc
- Chemetron Railway Products
- Chief Transportation Products
- Comet Industries
- Crown Steel Rail Co
- Crown Steel Rail Co
- CRS Engineering Inc
- CRS Engineering Inc
- Danco Equipment Corp
- Deisel Component Rebuilders
- Deisel Component Rebuilders
- DTE Rail Svc
- Econorail
- Electric Car Inc
- Electro-Motive
- Electro-Motive Diesel Inc
- Electro-Motive Diesel Inc
- Ellcon National Inc
- Elm-Central
- F M Industries Inc
- F M Industries Inc
- FCOT Inc
- G P Designs
- G P Designs
- GE Transportation Systems
- GENERAL Electronic Mechanical
- Green Mountain Sales
- Harmer Steel Rail Co
- Harsco Track Technologies
- Harsco Track Technologies
- Harsco Track Technologies
- Harsco Track Technologies
- Hornberger Co
- Hydro-Damp
- JER Overhaul Shop
- JER Overhaul Shop
- KIRK Rail Car Enterprise Inc
- Klasing Hand Brake Co
- Koppers Industries Inc
- L & W Industries Inc
- L B Foster Co
- L B Foster Co
- L B Foster Co
- Lido Rail System
- Lincoln Industries Corp
- Logran Corp
- Logran Corp
- Loram Maintenance
- Lucky Hydraulics Inc
- M & W Tool Co
- Magic Distributing Inc
- Magnum Manufacturing Corp
- Magnus-Farley Inc
- Mid-South Rail Repair & Recond
- Millennium Rail Inc
- Millennium Rail Inc
- Motive Equipment Co
- National Electric Gate Co
- National Railway Supply Inc
- Nevada Railroad Material
- New York Air Brake Co
- New York Air Brake Co
- New York Air Brake Co
- New York Air Brake Co
- Nippon Sharyo USA Inc
- Nolan Co
- Norfolk Southern Railway Co
- Norfolk Southern Railway Co
- Norfolk Southern Railway Co
- Northwest Rail Electric
- O'Neil Transportation Svc Inc
- Omni Products Inc
- One Inch Scale Railroad Supply
- Pandrol
- Pandrol USA
- Patco Industries Inc
- Portec Rail Products Inc
- Portec Rail Products Inc
- Powerbrace America
- Precision Roller Bearing Co
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- Progress Rail Svc
- PTMW
- Quantum Engineering Inc
- R H Little Co
- R W Summers Railroad Contr Inc
- Raceland Car Shop
- Racine Railroad Products Inc
- Rail Grabber
- Railcar Innovations
- Railroad Friction Prods Corp
- Railroad Signal Inc
- Rails Co
- Railway Equipment Co
- Railway Technology Inc
- RBL/Inc/Robolube
- Roller Bearing Inds Inc
- Safetran Systems Corp
- Safetran Systems Corp
- Safetran Systems Corp
- Safetran Systems Corp
- Salient Systems Inc
- Schaefer Equipment Inc
- Seneca Railroad & Mining Co
- Siemens Transportation Systems
- Signal Depot
- Southern Locomotive Inc
- Sperling Railway Svc Inc
- Spring Ridge Rail Svc
- Stanrail Corp
- T C Johnson Co
- Team Supply Co
- Teleweld Inc
- Texana Tank Car & Mfg LTD
- Texas Tank Car Works
- Timken Rail Bearing
- Transco Railway Products
- Transco Railway Products Inc
- Transportation Bracing Systems
- Triax YSD
- Trinity Rail Svc Co
- Twin Oaks Svc South Inc
- Union Switch & Signal
- Union Switch & Signal
- Union Switch & Signal
- Union Tank Car Co
- Unitrac Railroad Materials Inc
- VAE Nortrak Cheyenne Inc
- VAE Nortrak Inc
- Wabtec Corp
- Western-Cullen-Hayes Inc
- Wheel Truing Brake Shoe Co
- Wheel Truing Brake Shoe Co
- Winchester Industries
- YSD Industries Inc
- Zeftron
