- ASCAR Business Systems
 - Glendale - Provides software for delivery, trucking and courier companies. - E-Bus
- Downey - Designs and builds electric and hybrid-electric transit buses and shuttle vehicles.
- Electric Vehicles International
- Santa Ana - Manufacturer of electric and hybrid trucks, trams, and shuttle buses targeted to address off-highway applications.
- JBC Safety
- Santa Fe Springs - Supplies traffic cones, barricade boards, pavement markers, and more.
- M.T. Mobile Field Services
- Torrance - Mobile repair company specializing in setting up fleets and trucks.
- MSI
- Temecula - Offers planning, installation and support of fleet fuel management and tank monitoring systems.
- Polara Engineering
- Fullerton - Manufacturer of accessible pedestrian signals and push buttons for the blind and disabled.
- Quality Parking Service, Inc.
- Encino - Full service parking management company.
- TransContinental Inc.
- Ontario - Offers warehousing, distribution, and other transportation related services.
- Transit Sales International
- Riverside - Provides previously owned, U.S. manufactured transit buses to the international market.
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