- Armadillo Aerospace
 - Small research and development team working on computer-controlled hydrogen peroxide rocket vehicles, with an eye towards X-Prize class vehicle development. - Commonwealth Displays, Inc.
- Sells model & high power rockets and special orders hobby items.
- Discount Rocketry
- Model rocket kits and motors.
- Estes
- Launch Pad 2000
- Offering starter sets, engines, and bulk rockets. Specialising in educational materials for teachers, scouts, and other youth groups.
- Magnum Rockets Hobbies & More Inc.
- High power and sport model rocket kits, motors and supplies.
- Perfectflite
- Instrumentation for small rockets.
- Scud Launcher Technology
- Online store offering potato guns, tennis ball launchers, and related accessories.
- Suborbital Flying Machines
- Manufacturer of Model, Large Model and High Power Rockets and spare parts. Located in the North/East SF Bay Area.
- WINROC
- Software package suite of model rocketry programmes for use with Microsoft Windows 95 or newer.
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