Cycle Finders
cyclefinders.com
The national bicycle registration and recovery system. Register a bike and receive lifetime registration and help avert the tragedy of a stolen bike.
National Bike Registry
nationalbikeregistry.com
Preventing bicycle theft in the USA.
MyBikeRegistration.com
mybikeregistration.com
Fee-based global bicycle registration service, with a "Hot Bike List" for lost and stolen bikes.
BikeFinder Foundation
bikefinder.com
Bicycle registration to find lost or stolen bikes.