- Alexander Dennis
- Alstom Transportation
- Arboc Specialty Vehicles
- Arrival Automotive
- ARVA Industries
- Bombardier Transportation
- Brookville Equipment Corporation
- BYD Coach & Bus
- CAD Railway Industries
- CAF USA
- Coach & Equipment
- Complete Coach Works
- CRRC MA Corp
- CRRC Sifang America
- Diamond Coach Corp.
- Driverge Vehicle Innovations
- Endera Automotive
- Gillig
- Green Power Motor Company
- Higher Power Industries
- Hitachi Rail
- Hornblower
- Ilderton Conversion Company
- Kiepe Electric
- King County Metro
- Kinkisharyo
- Lightning eMotors
- Long Beach Transit (Long Beach, CA)
- LYNX (Orlando, FL)
- Matthews Specialty Vehicles
- Midwest Bus Corporation
- MobilityTRANS
- New Flyer of America
- Nova Bus / Prevost Car
- Oceaneering Entertainment Systems
- Siemens Transportation
- Stadler US, Inc
- San Francisco Bay Area Rapid Transit (“BART”)
- Sound Transit (Seattle, WA)
- Talgo
- Van Hool
- Vigor