Vetta
- Maker of bike computers.
- http://www.vetta.com/

VDO computers
- Manufacturer of computer with pulse meter and altimeter. Germany.
- http://www.cycleparts.de/

CicloSport
- Makes cyclometers, heart rate monitor, altimeters, and speedometers. USA.
- http://www.ciclosportusa.com

AMB Cyclip system
- Automatic timing and scoring systems for bicycle racing.
- http://www.amb-us.com/

Bikini
- A bicycle computer for your Palm PDA.
- http://home1.swipnet.se/~w-51358/pilot/default.htm

Polar
- Makers of heart rate monitors
- http://www.polar.fi/

CatEye
- Cycle computers and bicycle lighting systems.
- http://www.cateye.com/

Avocet
- Manufacturers of cycling computers, saddles, heart rate monitors, tires and altimiters.
- http://www.avocet.com/