- Bay Area Barricade Service, Inc.
 - Concord - Rents and sells traffic safety equipment to local construction and municipal organisations. - BCW Engineering & Manufacturing
- San Jose - Specialises in fleet service maintenance support equipment.
- Bevilacqua-Knight, Inc.
- Oakland - Provides analytical, planning, programme management, and communications services to clients in the energy and transportation fields.
- Great Atlantic & Pacific Railway Company
- Walnut Creek - Specialising in streamlined passenger cars.
- Helm Financial Corporation
- San Francisco - Offering locomotives and parts, flatcars, boxcars, open top, ballast and covered hoppers, and gondola railcars for lease and sale.
- Jakes Associates
- San Jose - Transportation and management consulting firm specialising in transit.
- Manalytics International
- San Francisco - Focuses on consulting and research in transportation, logistics, and supply chain management.
- Michael's Transportation Service
- Vallejo - State-certified school bus charter service serving Northern California.
- RailTech Software Systems
- Concord - Makers of MARS and CRBIS for car repair billing and railcar auditing and management.
- Royal Coach Tours
- San Jose - Offers gambling and sightseeing tours as well as corporate and business charters.
- Softech
- San Francisco - Cardlock management systems for commercial fleet fueling networks; provides card creation, automated customer PINs, and invoice generation.
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