Wheelchair manufacturers:

• 16th Annual Wheelchair Manufacturer’s guide: Pulished by Sports 'n Spokes Magazine, March 1998. -- http://www.pva.org/sns/9803whgd/wheelch2.htm
• Permobil:  A Swedish based manufacturer of power wheelchairs, which are sold throughout Europe, Canada and the USA. -- http://www.permobil.se/index.htm
  
• Invacare: Power and Manual wheelchairs. -- http://www.invacare.com/
  
• 21st Century Scientific: Makers of Bounder power and manual wheelchairs. -- http://www.wheelchairs.com/index.htm 
  
• Sunrise Medical: Makers of Quickie power and manual wheelchairs. -- http://www.sunrisemedical.com
  
• Jazzy: Power wheelchairs. -- http://www.pridehealth.com/Jazzy/jazzy.html
  
• Teftec Corp.: Makers of the Omega power chair. -- http://www.teftec.com/
  
• Mulholland Positioning Systems, Inc. -- http://dis-abilities.com/mulh2.htm
• Everest & Jennings: Power and manual wheelchairs, drive controls, and accessories. -- http://www.coast-resources.com/everestandjennings/