- ACM Aviation Inc.
 - San Jose - Full service FBO, with a fleet of corporate jet aircraft at San Jose International Airport. - Air West
- San Carlos - Maintenance and repair station provides parts and all levels of service for single and twin piston engine aircraft.
- Airport Shoppe
- San Jose - Pilot apparel, jackets, aviation books and manuals, plus aviation oxygen systems and supplies.
- Centurion Flight Services
- Palo Alto - Hire your own airline for an hour, a day, or even longer; any destination, any time.
- Diamond Aviation
- San Carlos
- IASCO
- Foster City - Cockpit crew training programs and crew leasing.
- IntegriNautics Corporation
- Palo Alto - Creates GPS solutions for precision navigation, and pseudolites.
- MS Aviation
- San Jose - Offers pilot ground training courses on DVD-ROM or instant download. Assists in preparing for ground training, FAA written test and check ride preparation.
- Palo Alto Airport Association (PAAA)
- Palo Alto - Nonprofit, membership organization composed of pilots, aircraft owners, and other friends of Palo Alto Airport.
- Trek Aerospace
- Sunnyvale - Designs small manned and unmanned vertical take off aircraft, including the SoloTrek Exo-Skeletor Flying Vehicle (XFV).
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