ParkingForMe - Marketplace for listing and renting unused parking spaces
AirGarage - Parking management tool for businesses, hotels & churches
Parking Kitty - New Product Hunt competitor for parking
netPark - netPark is a cloud hosted point of sale and revenue control system for valet or self park operations.
On Air Parking - Ridiculously cheap and simple airport parking.
WPS - WPS manages CCTV, payments, parking management and other systems through a single integrated network.